Konrad Rzeszutek Wilk
2012-Jan-10 20:28 UTC
Bootup regression introduced by 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 ("memblock: Reimplement memblock allocation using reverse free area iterato") in v3.3-rc0
Hey, With that patch I get this when trying to launch a 4GB xen guest: kernel="/mnt/lab/latest/vmlinuz" ramdisk="/mnt/lab/latest/initramfs.cpio.gz" extra="console=hvc0 debug earlyprintk=xen" memory=4096 maxmem=8192 vcpus=4 on_crash="preserve" vif = [ ''mac=00:0F:4B:00:00:68, bridge=switch'' ] vfb = [ ''vnc=1, vnclisten=0.0.0.0,vncunused=1'' If I change the "memory" to be "4000" it or if I revert the mention git commit it boots. This is what I get with the mentioned git commit: (early) [ 0.000000] Initializing cgroup subsys cpuset (early) [ 0.000000] Initializing cgroup subsys cpu (early) [ 0.000000] Linux version 3.2.0-04371-g6b3da11 (konrad@phenom.dumpdata.com) (gcc version 4.4.4 20100503 (Red Hat 4.4.4-2) (GCC) ) #2 SMP PREEMPT Tue Jan 10 12:47:50 EST 2012 (early) [ 0.000000] Command line: console=hvc0 debug earlyprintk=xen (early) [ 0.000000] Disabled fast string operations (early) [ 0.000000] ACPI in unprivileged domain disabled (early) [ 0.000000] Released 0 pages of unused memory (early) [ 0.000000] Set 0 page(s) to 1-1 mapping (early) [ 0.000000] BIOS-provided physical RAM map: (early) [ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable) (early) [ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved) (early) [ 0.000000] Xen: 0000000000100000 - 0000000200800000 (usable) (early) [ 0.000000] bootconsole [xenboot0] enabled (early) [ 0.000000] NX (Execute Disable) protection: active (early) [ 0.000000] DMI not present or invalid. (early) [ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (early) (usable)(early) ==> (early) (reserved)(early) (early) [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (early) (usable)(early) (early) [ 0.000000] No AGP bridge found (early) [ 0.000000] last_pfn = 0x200800 max_arch_pfn = 0x400000000 (early) [ 0.000000] last_pfn = 0x100000 max_arch_pfn = 0x400000000 (early) [ 0.000000] initial memory mapped : 0 - 0fbec000 (early) [ 0.000000] Base memory trampoline at [ffff88000009b000] 9b000 size 20480 (early) [ 0.000000] init_memory_mapping: 0000000000000000-0000000100000000 (early) [ 0.000000] 0000000000 - 0100000000 page 4k (early) [ 0.000000] Kernel panic - not syncing: Cannot find space for the kernel page tables (early) [ 0.000000] Pid: 0, comm: swapper Not tainted 3.2.0-04371-g6b3da11 #2 (early) [ 0.000000] Call Trace: (early) [ 0.000000] [<ffffffff8163f230>] panic+0x9b/0x1c9 (early) [ 0.000000] [<ffffffff8163f39f>] ? printk+0x41/0x43 (early) [ 0.000000] [<ffffffff81621462>] init_memory_mapping+0x562/0x590 (early) [ 0.000000] [<ffffffff81af58cb>] setup_arch+0x63a/0xafb (early) [ 0.000000] [<ffffffff8163f39f>] ? printk+0x41/0x43 (early) [ 0.000000] [<ffffffff81aefbaf>] start_kernel+0xe6/0x408 (early) [ 0.000000] [<ffffffff81aef346>] x86_64_start_reservations+0x131/0x136 (early) [ 0.000000] [<ffffffff81af2b62>] xen_start_kernel+0x60d/0x614
Tejun Heo
2012-Jan-10 22:26 UTC
Re: Bootup regression introduced by 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 ("memblock: Reimplement memblock allocation using reverse free area iterato") in v3.3-rc0
On Tue, Jan 10, 2012 at 03:28:38PM -0500, Konrad Rzeszutek Wilk wrote:> With that patch I get this when trying to launch a 4GB xen guest: > > kernel="/mnt/lab/latest/vmlinuz" > ramdisk="/mnt/lab/latest/initramfs.cpio.gz" > extra="console=hvc0 debug earlyprintk=xen" > memory=4096 > maxmem=8192 > vcpus=4 > on_crash="preserve" > vif = [ ''mac=00:0F:4B:00:00:68, bridge=switch'' ] > vfb = [ ''vnc=1, vnclisten=0.0.0.0,vncunused=1'' > > If I change the "memory" to be "4000" it or if I revert the > mention git commit it boots. This is what I get with the mentioned > git commit:Heh, interesting. Can you please apply the following patch and report the failing boot log? Thanks. diff --git a/mm/memblock.c b/mm/memblock.c index 2f55f19..978b58eff 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -102,6 +102,10 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start, /* align @size to avoid excessive fragmentation on reserved array */ size = round_up(size, align); + printk("memblock_find: [0x%llx, 0x%llx) size=%llu align=%llu nid=%d\n", + (unsigned long long)start, (unsigned long long)end, + (unsigned long long)size, (unsigned long long)align, nid); + /* pump up @end */ if (end == MEMBLOCK_ALLOC_ACCESSIBLE) end = memblock.current_limit; @@ -110,13 +114,27 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start, start = max3(start, size, (phys_addr_t)PAGE_SIZE); end = max(start, end); + printk("memblock_find: [0x%llx, 0x%llx) - adjusted\n", + (unsigned long long)start, (unsigned long long)end); + for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL) { + printk("memblock_find: cand [0x%llx, 0x%llx) -> ", + (unsigned long long)this_start, + (unsigned long long)this_end); + this_start = clamp(this_start, start, end); this_end = clamp(this_end, start, end); + printk("[0x%llx, 0x%llx) ", + (unsigned long long)this_start, + (unsigned long long)this_end); + cand = round_down(this_end - size, align); - if (cand >= this_start) + if (cand >= this_start) { + printk("- success %llx\n", (unsigned long long)cand); return cand; + } + printk("- rejected\n"); } return 0; }
Konrad Rzeszutek Wilk
2012-Jan-10 22:45 UTC
Re: Bootup regression introduced by 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 ("memblock: Reimplement memblock allocation using reverse free area iterato") in v3.3-rc0
On Tue, Jan 10, 2012 at 02:26:25PM -0800, Tejun Heo wrote:> On Tue, Jan 10, 2012 at 03:28:38PM -0500, Konrad Rzeszutek Wilk wrote: > > With that patch I get this when trying to launch a 4GB xen guest: > > > > kernel="/mnt/lab/latest/vmlinuz" > > ramdisk="/mnt/lab/latest/initramfs.cpio.gz" > > extra="console=hvc0 debug earlyprintk=xen" > > memory=4096 > > maxmem=8192 > > vcpus=4 > > on_crash="preserve" > > vif = [ ''mac=00:0F:4B:00:00:68, bridge=switch'' ] > > vfb = [ ''vnc=1, vnclisten=0.0.0.0,vncunused=1'' > > > > If I change the "memory" to be "4000" it or if I revert the > > mention git commit it boots. This is what I get with the mentioned > > git commit: > > Heh, interesting. Can you please apply the following patch and report > the failing boot log? > > Thanks. > > diff --git a/mm/memblock.c b/mm/memblock.c > index 2f55f19..978b58eff 100644 > --- a/mm/memblock.c > +++ b/mm/memblock.c > @@ -102,6 +102,10 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start, > /* align @size to avoid excessive fragmentation on reserved array */ > size = round_up(size, align); > > + printk("memblock_find: [0x%llx, 0x%llx) size=%llu align=%llu nid=%d\n", > + (unsigned long long)start, (unsigned long long)end, > + (unsigned long long)size, (unsigned long long)align, nid); > + > /* pump up @end */ > if (end == MEMBLOCK_ALLOC_ACCESSIBLE) > end = memblock.current_limit; > @@ -110,13 +114,27 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start, > start = max3(start, size, (phys_addr_t)PAGE_SIZE); > end = max(start, end); > > + printk("memblock_find: [0x%llx, 0x%llx) - adjusted\n", > + (unsigned long long)start, (unsigned long long)end); > + > for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL) { > + printk("memblock_find: cand [0x%llx, 0x%llx) -> ", > + (unsigned long long)this_start, > + (unsigned long long)this_end); > + > this_start = clamp(this_start, start, end); > this_end = clamp(this_end, start, end); > > + printk("[0x%llx, 0x%llx) ", > + (unsigned long long)this_start, > + (unsigned long long)this_end); > + > cand = round_down(this_end - size, align); > - if (cand >= this_start) > + if (cand >= this_start) { > + printk("- success %llx\n", (unsigned long long)cand); > return cand; > + } > + printk("- rejected\n"); > } > return 0; > }Using config file "/mnt/lab/latest/pv.xm". Started domain latest (id=28) (early) [ 0.000000] Initializing cgroup subsys cpuset (early) [ 0.000000] Initializing cgroup subsys cpu (early) [ 0.000000] Linux version 3.2.0-05808-g597987c (konrad@build.dumpdata.com) (gcc version 4.4.4 20100503 (Red Hat 4.4.4-2) (GCC) ) #1 SMP PREEMPT Tue Jan 10 17:31:15 EST 2012 (early) [ 0.000000] Command line: console=hvc0 debug earlyprintk=xenboot memblock=debug loglevel=8 (early) [ 0.000000] ACPI in unprivileged domain disabled (early) [ 0.000000] Released 0 pages of unused memory (early) [ 0.000000] Set 0 page(s) to 1-1 mapping (early) [ 0.000000] BIOS-provided physical RAM map: (early) [ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable) (early) [ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved) (early) [ 0.000000] Xen: 0000000000100000 - 0000000200800000 (usable) (early) [ 0.000000] bootconsole [xenboot0] enabled (early) [ 0.000000] NX (Execute Disable) protection: active (early) [ 0.000000] DMI not present or invalid. (early) [ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (early) (usable)(early) ==> (early) (reserved)(early) (early) [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (early) (usable)(early) (early) [ 0.000000] No AGP bridge found (early) [ 0.000000] last_pfn = 0x200800 max_arch_pfn = 0x400000000 (early) [ 0.000000] last_pfn = 0x100000 max_arch_pfn = 0x400000000 (early) [ 0.000000] memblock_reserve: [0x00000001dec000-0x00000001e03000] setup_arch+0x592/0xafb (early) [ 0.000000] MEMBLOCK configuration: (early) [ 0.000000] memory size = 0x200790000 reserved size = 0x10f960000 (early) [ 0.000000] memory.cnt = 0x2 (early) [ 0.000000] memory[0x0] [0x00000000010000-0x0000000009ffff], 0x90000 bytes (early) [ 0.000000] memory[0x1] [0x00000000100000-0x000002007fffff], 0x200700000 bytes (early) [ 0.000000] reserved.cnt = 0x3 (early) [ 0.000000] reserved[0x0] [0x00000001000000-0x00000001e02fff], 0xe03000 bytes (early) [ 0.000000] reserved[0x1] [0x0000000220a000-0x00000010566fff], 0xe35d000 bytes (early) [ 0.000000] reserved[0x2] [0x00000100000000-0x000002007fffff], 0x100800000 bytes (early) [ 0.000000] initial memory mapped : 0 - 0fcdd000 (early) [ 0.000000] memblock_find: [0x0, 0x100000) size=20480 align=4096 nid=1024 (early) [ 0.000000] memblock_find: [0x5000, 0x100000) - adjusted (early) [ 0.000000] memblock_find: cand [0x10567000, 0x100000000) -> (early) [0x100000, 0x100000) (early) - rejected (early) [ 0.000000] memblock_find: cand [0x1e03000, 0x220a000) -> (early) [0x100000, 0x100000) (early) - rejected (early) [ 0.000000] memblock_find: cand [0x100000, 0x1000000) -> (early) [0x100000, 0x100000) (early) - rejected (early) [ 0.000000] memblock_find: cand [0x10000, 0xa0000) -> (early) [0x10000, 0xa0000) (early) - success 9b000 (early) [ 0.000000] memblock_reserve: [0x0000000009b000-0x000000000a0000] setup_trampolines+0x66/0x9c (early) [ 0.000000] Base memory trampoline at [ffff88000009b000] 9b000 size 20480 (early) [ 0.000000] init_memory_mapping: 0000000000000000-0000000100000000 (early) [ 0.000000] 0000000000 - 0100000000 page 4k (early) [ 0.000000] memblock_find: [0x0, 0xfcdd000) size=8409088 align=4096 nid=1024 (early) [ 0.000000] memblock_find: [0x805000, 0xfcdd000) - adjusted (early) [ 0.000000] memblock_find: cand [0x10567000, 0x100000000) -> (early) [0xfcdd000, 0xfcdd000) (early) - rejected (early) [ 0.000000] memblock_find: cand [0x1e03000, 0x220a000) -> (early) [0x1e03000, 0x220a000) (early) - rejected (early) [ 0.000000] memblock_find: cand [0x100000, 0x1000000) -> (early) [0x805000, 0x1000000) (early) - rejected (early) [ 0.000000] memblock_find: cand [0x10000, 0x9b000) -> (early) [0x805000, 0x805000) (early) - rejected (early) [ 0.000000] Kernel panic - not syncing: Cannot find space for the kernel page tables (early) [ 0.000000] Pid: 0, comm: swapper Not tainted 3.2.0-05808-g597987c #1 (early) [ 0.000000] Call Trace: (early) [ 0.000000] [<ffffffff816011e5>] panic+0x96/0x1c4 (early) [ 0.000000] [<ffffffff815e4612>] init_memory_mapping+0x562/0x590 (early) [ 0.000000] [<ffffffff81ae88c6>] setup_arch+0x63a/0xafb (early) [ 0.000000] [<ffffffff8160134f>] ? printk+0x3c/0x3e (early) [ 0.000000] [<ffffffff81ae2baf>] start_kernel+0xe6/0x403 (early) [ 0.000000] [<ffffffff81ae2346>] x86_64_start_reservations+0x131/0x136 (early) [ 0.000000] [<ffffffff81ae5b5d>] xen_start_kernel+0x60d/0x614
Tejun Heo
2012-Jan-10 23:15 UTC
Re: Bootup regression introduced by 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 ("memblock: Reimplement memblock allocation using reverse free area iterato") in v3.3-rc0
Hello, On Tue, Jan 10, 2012 at 05:45:37PM -0500, Konrad Rzeszutek Wilk wrote:> (early) [ 0.000000] memblock_find: [0x0, 0xfcdd000) size=8409088 align=4096 nid=1024 > (early) [ 0.000000] memblock_find: [0x805000, 0xfcdd000) - adjusted > (early) [ 0.000000] memblock_find: cand [0x10567000, 0x100000000) -> (early) [0xfcdd000, 0xfcdd000) (early) - rejected > (early) [ 0.000000] memblock_find: cand [0x1e03000, 0x220a000) -> (early) [0x1e03000, 0x220a000) (early) - rejected > (early) [ 0.000000] memblock_find: cand [0x100000, 0x1000000) -> (early) [0x805000, 0x1000000) (early) - rejected > (early) [ 0.000000] memblock_find: cand [0x10000, 0x9b000) -> (early) [0x805000, 0x805000) (early) - rejected > (early) [ 0.000000] Kernel panic - not syncing: Cannot find space for the kernel page tablesSo, it actually is a legitimate alloc failure. It seems I''ve tried a bit too hard at simplifying the allocator. Does the following fix the problem? Thanks. diff --git a/mm/memblock.c b/mm/memblock.c index 2f55f19..77b5f22 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -106,14 +106,17 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start, if (end == MEMBLOCK_ALLOC_ACCESSIBLE) end = memblock.current_limit; - /* adjust @start to avoid underflow and allocating the first page */ - start = max3(start, size, (phys_addr_t)PAGE_SIZE); + /* avoid allocating the first page */ + start = max_t(phys_addr_t, start, PAGE_SIZE); end = max(start, end); for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL) { this_start = clamp(this_start, start, end); this_end = clamp(this_end, start, end); + if (this_end < size) + continue; + cand = round_down(this_end - size, align); if (cand >= this_start) return cand;
Konrad Rzeszutek Wilk
2012-Jan-11 20:04 UTC
Re: Bootup regression introduced by 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 ("memblock: Reimplement memblock allocation using reverse free area iterato") in v3.3-rc0
On Tue, Jan 10, 2012 at 03:15:52PM -0800, Tejun Heo wrote:> Hello, > > On Tue, Jan 10, 2012 at 05:45:37PM -0500, Konrad Rzeszutek Wilk wrote: > > (early) [ 0.000000] memblock_find: [0x0, 0xfcdd000) size=8409088 align=4096 nid=1024 > > (early) [ 0.000000] memblock_find: [0x805000, 0xfcdd000) - adjusted > > (early) [ 0.000000] memblock_find: cand [0x10567000, 0x100000000) -> (early) [0xfcdd000, 0xfcdd000) (early) - rejected > > (early) [ 0.000000] memblock_find: cand [0x1e03000, 0x220a000) -> (early) [0x1e03000, 0x220a000) (early) - rejected > > (early) [ 0.000000] memblock_find: cand [0x100000, 0x1000000) -> (early) [0x805000, 0x1000000) (early) - rejected > > (early) [ 0.000000] memblock_find: cand [0x10000, 0x9b000) -> (early) [0x805000, 0x805000) (early) - rejected > > (early) [ 0.000000] Kernel panic - not syncing: Cannot find space for the kernel page tables > > So, it actually is a legitimate alloc failure. It seems I''ve tried a > bit too hard at simplifying the allocator. Does the following fix the > problem? > > Thanks. > > diff --git a/mm/memblock.c b/mm/memblock.c > index 2f55f19..77b5f22 100644 > --- a/mm/memblock.c > +++ b/mm/memblock.c > @@ -106,14 +106,17 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start, > if (end == MEMBLOCK_ALLOC_ACCESSIBLE) > end = memblock.current_limit; > > - /* adjust @start to avoid underflow and allocating the first page */ > - start = max3(start, size, (phys_addr_t)PAGE_SIZE); > + /* avoid allocating the first page */ > + start = max_t(phys_addr_t, start, PAGE_SIZE); > end = max(start, end); > > for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL) { > this_start = clamp(this_start, start, end); > this_end = clamp(this_end, start, end); > > + if (this_end < size) > + continue; > + > cand = round_down(this_end - size, align); > if (cand >= this_start) > return cand;With that patch it boots! (early) [ 0.000000] Initializing cgroup subsys cpuset (early) [ 0.000000] Initializing cgroup subsys cpu (early) [ 0.000000] Linux version 3.2.0-05693-g2c81411 (konrad@phenom.dumpdata.com) (gcc version 4.4.4 20100503 (Red Hat 4.4.4-2) (GCC) ) #1 SMP PREEMPT Wed Jan 11 13:19:30 EST 2012 (early) [ 0.000000] Command line: console=hvc0 debug earlyprintk=xen (early) [ 0.000000] ACPI in unprivileged domain disabled (early) [ 0.000000] Released 0 pages of unused memory (early) [ 0.000000] Set 0 page(s) to 1-1 mapping (early) [ 0.000000] BIOS-provided physical RAM map: (early) [ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable) (early) [ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved) (early) [ 0.000000] Xen: 0000000000100000 - 0000000200800000 (usable) (early) [ 0.000000] bootconsole [xenboot0] enabled (early) [ 0.000000] NX (Execute Disable) protection: active (early) [ 0.000000] DMI not present or invalid. (early) [ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (early) (usable)(early) ==> (early) (reserved)(early) (early) [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (early) (usable)(early) (early) [ 0.000000] No AGP bridge found (early) [ 0.000000] last_pfn = 0x200800 max_arch_pfn = 0x400000000 (early) [ 0.000000] last_pfn = 0x100000 max_arch_pfn = 0x400000000 (early) [ 0.000000] initial memory mapped : 0 - 10006000 (early) [ 0.000000] Base memory trampoline at [ffff88000009b000] 9b000 size 20480 (early) [ 0.000000] init_memory_mapping: 0000000000000000-0000000100000000 (early) [ 0.000000] 0000000000 - 0100000000 page 4k (early) [ 0.000000] kernel direct mapping tables up to 100000000 @ 7fb000-1000000 (early) [ 0.000000] xen: setting RW the range f74000 - 1000000 (early) [ 0.000000] init_memory_mapping: 0000000100000000-0000000200800000 (early) [ 0.000000] 0100000000 - 0200800000 page 4k (early) [ 0.000000] kernel direct mapping tables up to 200800000 @ feff2000-100000000 (early) [ 0.000000] xen: setting RW the range ff7fb000 - 100000000 (early) [ 0.000000] RAMDISK: 02249000 - 10006000 (early) [ 0.000000] No NUMA configuration found (early) [ 0.000000] Faking a node at 0000000000000000-0000000200800000 (early) [ 0.000000] Initmem setup node 0 0000000000000000-0000000200800000 (early) [ 0.000000] NODE_DATA [00000000fffd9000 - 00000000ffffffff] (early) [ 0.000000] Zone PFN ranges: (early) [ 0.000000] DMA (early) 0x00000010 -> 0x00001000 (early) [ 0.000000] DMA32 (early) 0x00001000 -> 0x00100000 (early) [ 0.000000] Normal (early) 0x00100000 -> 0x00200800 (early) [ 0.000000] Movable zone start PFN for each node (early) [ 0.000000] Early memory PFN ranges (early) [ 0.000000] 0: 0x00000010 -> 0x000000a0 (early) [ 0.000000] 0: 0x00000100 -> 0x00200800 (early) [ 0.000000] On node 0 totalpages: 2099088 (early) [ 0.000000] DMA zone: 64 pages used for memmap (early) [ 0.000000] DMA zone: 1918 pages reserved (early) [ 0.000000] DMA zone: 2002 pages, LIFO batch:0 (early) [ 0.000000] DMA32 zone: 16320 pages used for memmap (early) [ 0.000000] DMA32 zone: 1028160 pages, LIFO batch:31 (early) [ 0.000000] Normal zone: 16416 pages used for memmap (early) [ 0.000000] Normal zone: 1034208 pages, LIFO batch:31 (early) [ 0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs (early) [ 0.000000] No local APIC present (early) [ 0.000000] APIC: disable apic facility (early) [ 0.000000] APIC: switched to apic NOOP (early) [ 0.000000] nr_irqs_gsi: 16 (early) [ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000 (early) [ 0.000000] PCI: Warning: Cannot find a gap in the 32bit address range (early) [ 0.000000] PCI: Unassigned devices with 32bit resource registers may break! (early) [ 0.000000] Allocating PCI resources starting at 200900000 (gap: 200900000:400000) (early) [ 0.000000] Booting paravirtualized kernel on Xen (early) [ 0.000000] Xen version: 4.1-120111 (preserve-AD) (early) [ 0.000000] setup_percpu: NR_CPUS:4096 nr_cpumask_bits:4 nr_cpu_ids:4 nr_node_ids:1 (early) [ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff8800fff31000 s82752 r8192 d23744 u114688 (early) [ 0.000000] pcpu-alloc: s82752 r8192 d23744 u114688 alloc=28*4096(early) (early) [ 0.000000] pcpu-alloc: (early) [0] (early) 0 (early) [0] (early) 1 (early) [0] (early) 2 (early) [0] (early) 3 (early) (early) [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 2064370 (early) [ 0.000000] Policy zone: Normal (early) [ 0.000000] Kernel command line: console=hvc0 debug earlyprintk=xen (early) [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) (early) [ 0.000000] Checking aperture... (early) [ 0.000000] No AGP bridge found (early) [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area (early) [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! (early) [ 0.000000] Memory: 3727344k/8396800k available (6482k kernel code, 448k absent, 4669008k reserved, 4624k data, 1256k init) (early) [ 0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 (early) [ 0.000000] Preemptible hierarchical RCU implementation. (early) [ 0.000000] NR_IRQS:262400 nr_irqs:304 16 (early) [ 0.000000] kmemleak: Early log buffer exceeded, please increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE (early) [ 0.000000] kmemleak: Kernel memory leak detector disabled (early) [ 0.000000] Console: colour dummy device 80x25 (early) [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled, bootconsole disabled (early) [ 0.000000] console [hvc0] enabled, bootconsole disabled [ 0.000000] Xen: using vcpuop timer interface [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] Detected 3292.616 MHz processor. [ 0.000999] Calibrating delay loop (skipped), value calculated using timer frequency.. 6585.23 BogoMIPS (lpj=3292616) [ 0.000999] pid_max: default: 32768 minimum: 301 [ 0.000999] Security Framework initialized [ 0.000999] SELinux: Initializing. [ 0.000999] SELinux: Starting in permissive mode [ 0.002170] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.004675] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.005213] Mount-cache hash table entries: 256 [ 0.005428] Initializing cgroup subsys cpuacct [ 0.005436] Initializing cgroup subsys freezer [ 0.005497] ENERGY_PERF_BIAS: Set to ''normal'', was ''performance'' [ 0.005498] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.005510] CPU: Physical Processor ID: 0 [ 0.005515] CPU: Processor Core ID: 0 [ 0.005576] SMP alternatives: switching to UP code [ 0.005999] ftrace: allocating 23453 entries in 92 pages [ 0.006057] cpu 0 spinlock event irq 17 [ 0.006112] Performance Events: unsupported p6 CPU model 42 no PMU driver, software events only. [ 0.012038] NMI watchdog disabled (cpu0): hardware events not enabled [ 0.018010] installing Xen timer for CPU 1 [ 0.018028] cpu 1 spinlock event irq 23 [ 0.018051] SMP alternatives: switching to SMP code [ 0.019085] NMI watchdog disabled (cpu1): hardware events not enabled [ 0.025009] installing Xen timer for CPU 2 [ 0.025027] cpu 2 spinlock event irq 29 [ 0.025121] NMI watchdog disabled (cpu2): hardware events not enabled [ 0.031008] installing Xen timer for CPU 3 [ 0.031024] cpu 3 spinlock event irq 35 [ 0.031118] NMI watchdog disabled (cpu3): hardware events not enabled [ 0.033006] Brought up 4 CPUs [ 0.033666] kworker/u:0 used greatest stack depth: 5272 bytes left [ 0.033666] Grant tables using version 2 layout. [ 0.033666] Grant table initialized [ 0.052849] RTC time: 165:165:165, date: 165/165/65 [ 0.053033] NET: Registered protocol family 16 [ 0.054556] PCI: setting up Xen PCI frontend stub [ 0.054565] PCI: pci_cache_line_size set to 64 bytes [ 0.065198] bio: create slab <bio-0> at 0 [ 0.065198] ACPI: Interpreter disabled. [ 0.066004] xen/balloon: Initialising balloon driver. [ 0.076187] xen-balloon: Initialising balloon driver. [ 0.076187] vgaarb: loaded [ 0.077064] usbcore: registered new interface driver usbfs [ 0.077067] usbcore: registered new interface driver hub [ 0.077107] usbcore: registered new device driver usb [ 0.077107] PCI: System does not support PCI [ 0.077107] PCI: System does not support PCI [ 0.078054] NetLabel: Initializing [ 0.078054] NetLabel: domain hash size = 128 [ 0.078054] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.078054] NetLabel: unlabeled traffic allowed by default [ 0.078109] Switching to clocksource xen [ 0.083574] pnp: PnP ACPI: disabled [ 0.089832] PCI: max bus depth: 0 pci_try_num: 1 [ 0.089877] NET: Registered protocol family 2 [ 0.090665] IP route cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.093957] TCP established hash table entries: 524288 (order: 11, 8388608 bytes) [ 0.095324] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes) [ 0.095466] TCP: Hash tables configured (established 524288 bind 65536) [ 0.095474] TCP reno registered [ 0.095526] UDP hash table entries: 4096 (order: 5, 131072 bytes) [ 0.095597] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes) [ 0.095720] NET: Registered protocol family 1 [ 0.095957] RPC: Registered named UNIX socket transport module. [ 0.095965] RPC: Registered udp transport module. [ 0.095970] RPC: Registered tcp transport module. [ 0.095976] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.095984] PCI: CLS 0 bytes, default 64 [ 0.096219] Trying to unpack rootfs image as initramfs... [ 0.431565] Freeing initrd memory: 227060k freed [ 0.475737] DMA-API: preallocated 32768 debug entries [ 0.475961] DMA-API: debugging enabled by kernel config [ 0.475969] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 0.475977] Placing 64MB software IO TLB between ffff8800f2800000 - ffff8800f6800000 [ 0.475984] software IO TLB at phys 0xf2800000 - 0xf6800000 [ 0.476324] platform rtc_cmos: registered platform RTC device (no PNP device found) [ 0.476472] Machine check injector initialized [ 0.477452] microcode: CPU0 sig=0x206a7, pf=0x2, revision=0x17 [ 0.477466] microcode: CPU1 sig=0x206a7, pf=0x2, revision=0x17 [ 0.477486] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 [ 0.477503] microcode: CPU3 sig=0x206a7, pf=0x2, revision=0x17 [ 0.477586] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba [ 0.478032] audit: initializing netlink socket (disabled) [ 0.478053] type=2000 audit(1326338469.110:1): initialized [ 0.494006] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.499995] VFS: Disk quotas dquot_6.5.2 [ 0.500208] Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.501045] NTFS driver 2.1.30 [Flags: R/W]. [ 0.501365] msgmni has been set to 7723 [ 0.501583] SELinux: Registering netfilter hooks [ 0.502294] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) [ 0.502303] io scheduler noop registered [ 0.502309] io scheduler deadline registered [ 0.502405] io scheduler cfq registered (default) [ 0.502633] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.542586] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.573641] Non-volatile memory driver v1.3 [ 0.573649] Linux agpgart interface v0.103 [ 0.574083] [drm] Initialized drm 1.1.0 20060810 [ 0.577049] brd: module loaded [ 0.578684] loop: module loaded [ 0.579544] Fixed MDIO Bus: probed [ 0.579551] tun: Universal TUN/TAP device driver, 1.6 [ 0.579556] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com> [ 0.580300] ehci_hcd: USB 2.0 ''Enhanced'' Host Controller (EHCI) Driver [ 0.580308] ehci_hcd: block sizes: qh 112 qtd 96 itd 192 sitd 96 [ 0.580386] ohci_hcd: USB 1.1 ''Open'' Host Controller (OHCI) Driver [ 0.580392] ohci_hcd: block sizes: ed 80 td 96 [ 0.580466] uhci_hcd: USB Universal Host Controller Interface driver [ 0.580701] usbcore: registered new interface driver usblp [ 0.580780] usbcore: registered new interface driver libusual [ 0.581039] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 0.581865] i8042: No controller found [ 0.581951] mousedev: PS/2 mouse device common for all mice [ 0.622367] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 0.622469] rtc_cmos: probe of rtc_cmos failed with error -38 [ 0.622730] EFI Variables Facility v0.08 2004-May-17 [ 0.622805] zram: num_devices not specified. Using default: 1 [ 0.622812] zram: Creating 1 devices ... [ 0.623448] Netfilter messages via NETLINK v0.30. [ 0.623467] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 0.623780] ctnetlink v0.93: registering with nfnetlink. [ 0.625065] ip_tables: (C) 2000-2006 Netfilter Core Team [ 0.625099] TCP cubic registered [ 0.625105] Initializing XFRM netlink socket [ 0.625468] NET: Registered protocol family 10 [ 0.627394] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 0.627485] IPv6 over IPv4 tunneling driver [ 0.629062] NET: Registered protocol family 17 [ 0.629097] Registering the dns_resolver key type [ 0.629362] PM: Hibernation image not present or could not be loaded. [ 0.629386] registered taskstats version 1 [ 0.629448] XENBUS: Device with no driver: device/vif/0 [ 0.629454] XENBUS: Device with no driver: device/vfb/0 [ 0.629460] XENBUS: Device with no driver: device/vkbd/0 [ 0.629475] Magic number: 1:252:3141 [ 0.630415] Freeing unused kernel memory: 1256k freed [ 0.630622] Write protecting the kernel read-only data: 10240k [ 0.636139] Freeing unused kernel memory: 1688k freed [ 0.636508] Freeing unused kernel memory: 112k freed init started: BusyBox v1.14.3 (2012-01-11 13:22:11 EST) [ 0.641820] consoletype used greatest stack depth: 5232 bytes left Mounting directories [ OK ] [ 0.860513] modprobe used greatest stack depth: 5008 bytes left mount: mount point /sys/kernel/config does not exist [ 0.865846] core_filesystem used greatest stack depth: 4880 bytes left [ 0.874814] input: Xen Virtual Keyboard as /devices/virtual/input/input0 [ 0.875019] input: Xen Virtual Pointer as /devices/virtual/input/input1 [ 1.086237] Initialising Xen virtual ethernet driver. [ 1.201417] udevd (1186): /proc/1186/oom_adj is deprecated, please use /proc/1186/oom_score_adj instead. udevd-work[1202]: error opening ATTR{/sys/devices/system/cpu/cpu0/online} for writing: No such file or directory [ 1.307448] ip used greatest stack depth: 3696 bytes left Waiting for devices [ OK ] Waiting for fb [ OK ] Starting..[/dev/fb0] /dev/fb0: len:0 /dev/fb0: bits/pixel32 (7fa51499a000): Writting .. [800:600] Done! FATAL: Module agpgart_intel not found. [ 1.464693] Console: switching to colour frame buffer device 100x37 [ 1.478942] [drm] radeon kernel modesetting enabled. WARNING: Error inserting video (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/acpi/video.ko): No such device WARNING: Error inserting mxm_wmi (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/platform/x86/mxm-wmi.ko): No such device WARNING: Error inserting drm_kms_helper (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/drm_kms_helper.ko): No such device WARNING: Error inserting ttm (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/ttm/ttm.ko): No such device FATAL: Error inserting nouveau (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/nouveau/nouveau.ko): No such device WARNING: Error inserting drm_kms_helper (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/drm_kms_helper.ko): No such device FATAL: Error inserting i915 (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/i915/i915.ko): No such device Starting..[/dev/fb0] /dev/fb0: len:0 /dev/fb0: bits/pixel32 (7fc2635c3000): Writting .. [800:600] Done! VGA: 0000: Waiting for network [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: [ 1.743980] device eth0 entered promiscuous mode [ OK ] Bringing up interface switch: Determining IP information for switch...[ 1.790208] switch: port 1(eth0) entering forwarding state [ 1.790244] switch: port 1(eth0) entering forwarding state [ 1.790880] ip used greatest stack depth: 3376 bytes left done. [ OK ] Waiting for init.custom [ OK ] Starting SSHd ... SSH started [2314] Waiting for SSHd [ OK ] WARNING: ssh currently running [2314] ignoring start request FATAL: Module dump_dma not found. ERROR: Module dump_dma does not exist in /proc/modules [ 3.562254] SCSI subsystem initialized [ 3.563911] Loading iSCSI transport class v2.0-870. [ 3.566452] iscsi: registered transport (tcp) iscsistart: transport class version 2.0-870. iscsid version 2.0-872 Could not get list of targets from firmware. Jan 12 03:21:12 g-pvops syslogd 1.5.0: restart. FATAL: Module evtchn not found. [ 3.595640] Event-channel device installed. xencommons should be started first. CPU0 CPU1 CPU2 CPU3 16: 1330 0 0 0 xen-percpu-virq timer0 17: 6 0 0 0 xen-percpu-ipi spinlock0 18: 1872 0 0 0 xen-percpu-ipi resched0 19: 129 0 0 0 xen-percpu-ipi callfunc0 20: 0 0 0 0 xen-percpu-virq debug0 21: 77 0 0 0 xen-percpu-ipi callfuncsingle0 22: 0 1811 0 0 xen-percpu-virq timer1 23: 0 14 0 0 xen-percpu-ipi spinlock1 24: 0 2411 0 0 xen-percpu-ipi resched1 25: 0 140 0 0 xen-percpu-ipi callfunc1 26: 0 0 0 0 xen-percpu-virq debug1 27: 0 78 0 0 xen-percpu-ipi callfuncsingle1 28: 0 0 1204 0 xen-percpu-virq timer2 29: 0 0 5 0 xen-percpu-ipi spinlock2 30: 0 0 3713 0 xen-percpu-ipi resched2 31: 0 0 148 0 xen-percpu-ipi callfunc2 32: 0 0 0 0 xen-percpu-virq debug2 33: 0 0 103 0 xen-percpu-ipi callfuncsingle2 34: 0 0 0 1373 xen-percpu-virq timer3 35: 0 0 0 5 xen-percpu-ipi spinlock3 36: 0 0 0 2474 xen-percpu-ipi resched3 37: 0 0 0 131 xen-percpu-ipi callfunc3 38: 0 0 0 0 xen-percpu-virq debug3 39: 0 0 0 88 xen-percpu-ipi callfuncsingle3 40: 423 0 0 0 xen-dyn-event xenbus 41: 81 0 0 0 xen-dyn-event hvc_console 42: 0 0 0 0 xen-dyn-event vkbd 43: 70 0 0 0 xen-dyn-event vfb 44: 20 0 0 0 xen-dyn-event eth0 NMI: 0 0 0 0 Non-maskable interrupts LOC: 0 0 0 0 Local timer interrupts SPU: 0 0 0 0 Spurious interrupts PMI: 0 0 0 0 Performance monitoring interrupts IWI: 0 0 0 0 IRQ work interrupts RTR: 0 0 0 0 APIC ICR read retries RES: 1872 2411 3713 2474 Rescheduling interrupts CAL: 206 218 251 219 Function call interrupts TLB: 0 0 0 0 TLB shootdowns TRM: 0 0 0 0 Thermal event interrupts THR: 0 0 0 0 Threshold APIC interrupts MCE: 0 0 0 0 Machine check exceptions MCP: 0 0 0 0 Machine check polls ERR: 0 MIS: 0 00000000-0000ffff : reserved 00010000-0009ffff : System RAM 000a0000-000fffff : reserved 000f0000-000fffff : System ROM 00100000-2007fffff : System RAM 01000000-016549db : Kernel code 016549dc-01ad89ff : Kernel data 01c1a000-01e2afff : Kernel bss Waiting for init.late [ OK ] PING build.dumpdata.com (192.168.101.3) 56(84) bytes of data. --- build.dumpdata.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.329/0.329/0.329/0.000 ms NFS done [0x0->0x100000] pfn [0x0->0x100000] level entry [0x100000->0x7cfffff] missing [0x100000->0x7cfffff] level top libxl: error: libxl.c:56:libxl_ctx_init Is xenstore daemon running? failed to stat /var/run/xenstored.pid: No such file or directory cannot init xl context [ 4.481012] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com [ 4.482152] device-mapper: multipath: version 1.3.0 loaded 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb Logging in to [iface: default, target: iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb, portal: 192.168.101.2,3260] Jan 12 03:21:13 g-pvops iscsid: transport class version 2.0-870. iscsid version 2.0-872 Jan 12 03:21:13 g-pvops iscsid: iSCSI daemon with pid=2387 started! [ 4.747529] scsi0 : iSCSI Initiator over TCP/IP [ 4.751948] connection1:0: detected conn error (1020) iscsiadm: Could not login to [iface: default, target: iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb, portal: 192.168.101.2,3260]. iscsiadm: initiator reported error (19 - encountered non-retryable iSCSI login failure) Jan 12 03:21:14 g-pvops iscsid: conn 0 login rejected: initiator failed authorization with target Jan 12 03:21:14 g-pvops iscsid: Connection1:0 to [target: iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb, portal: 192.168.101.2,3260] through [iface: default] is shutdown. poweroff No matching physical volumes found No volume groups found Jan 12 03:21:18 g-pvops init: starting pid 2466, tty ''/dev/tty2'': ''/bin/sh'' Jan 12 03:21:18 g-pvops init: starting pid 2469, tty ''/dev/tty1'': ''/bin/sh'' Jan 12 03:21:18 g-pvops init: starting pid 2470, tty ''/dev/ttyS0'': ''/bin/sh'' Jan 12 03:21:18 g-pvops init: starting pid 2471, tty ''/dev/hvc0'': ''/bin/sh'' ~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.4.9 |~~~~~~~~~~~~~~~~~~~~~~~~~~ (c) 2001-2010 The world wide DirectFB Open Source Community (c) 2000-2004 Convergence (integrated media) GmbH ---------------------------------------------------------------- (*) DirectFB/Core: Single Application Core. (2012-01-11 18:23) sh-4.1# sh-4.1# poweroff (*) Direct/Memcpy: Using Generic 64bit memcpy() Jan 12 03:21:18 g-pvops init: starting pid 2477, tty '''': ''/etc/init.d/halt'' sh-4.1# Usage: /etc/init.d/halt {start} The system is going down NOW! Sent SIGTERM to all processes (!) [ 2465: 0.000] --> Caught signal 15 (sent by pid 1, uid 0) <-- (!) [ 2465: 0.000] --> Caught signal 11 (at 0x38, invalid address) <-- Sent SIGKILL to all processes Requesting system poweroff [ 12.086915] System halted. Parsing config file /mnt/lab/tst018/pv.xm Daemon running with PID 3972
Konrad Rzeszutek Wilk
2012-Jan-13 14:27 UTC
Re: Bootup regression introduced by 7bd0b0f0da3b1ec11cbcc798eb0ef747a1184077 ("memblock: Reimplement memblock allocation using reverse free area iterato") in v3.3-rc0
On Wed, Jan 11, 2012 at 03:04:35PM -0500, Konrad Rzeszutek Wilk wrote:> On Tue, Jan 10, 2012 at 03:15:52PM -0800, Tejun Heo wrote: > > Hello, > > > > On Tue, Jan 10, 2012 at 05:45:37PM -0500, Konrad Rzeszutek Wilk wrote: > > > (early) [ 0.000000] memblock_find: [0x0, 0xfcdd000) size=8409088 align=4096 nid=1024 > > > (early) [ 0.000000] memblock_find: [0x805000, 0xfcdd000) - adjusted > > > (early) [ 0.000000] memblock_find: cand [0x10567000, 0x100000000) -> (early) [0xfcdd000, 0xfcdd000) (early) - rejected > > > (early) [ 0.000000] memblock_find: cand [0x1e03000, 0x220a000) -> (early) [0x1e03000, 0x220a000) (early) - rejected > > > (early) [ 0.000000] memblock_find: cand [0x100000, 0x1000000) -> (early) [0x805000, 0x1000000) (early) - rejected > > > (early) [ 0.000000] memblock_find: cand [0x10000, 0x9b000) -> (early) [0x805000, 0x805000) (early) - rejected > > > (early) [ 0.000000] Kernel panic - not syncing: Cannot find space for the kernel page tables > > > > So, it actually is a legitimate alloc failure. It seems I''ve tried a > > bit too hard at simplifying the allocator. Does the following fix the > > problem?Any thoughts of when this fix will show up in Ingo''s tree for 3.3-rc0? Thanks!> > > > Thanks. > > > > diff --git a/mm/memblock.c b/mm/memblock.c > > index 2f55f19..77b5f22 100644 > > --- a/mm/memblock.c > > +++ b/mm/memblock.c > > @@ -106,14 +106,17 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start, > > if (end == MEMBLOCK_ALLOC_ACCESSIBLE) > > end = memblock.current_limit; > > > > - /* adjust @start to avoid underflow and allocating the first page */ > > - start = max3(start, size, (phys_addr_t)PAGE_SIZE); > > + /* avoid allocating the first page */ > > + start = max_t(phys_addr_t, start, PAGE_SIZE); > > end = max(start, end); > > > > for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL) { > > this_start = clamp(this_start, start, end); > > this_end = clamp(this_end, start, end); > > > > + if (this_end < size) > > + continue; > > + > > cand = round_down(this_end - size, align); > > if (cand >= this_start) > > return cand; > > With that patch it boots! > > > (early) [ 0.000000] Initializing cgroup subsys cpuset > (early) [ 0.000000] Initializing cgroup subsys cpu > (early) [ 0.000000] Linux version 3.2.0-05693-g2c81411 (konrad@phenom.dumpdata.com) (gcc version 4.4.4 20100503 (Red Hat 4.4.4-2) (GCC) ) #1 SMP PREEMPT Wed Jan 11 13:19:30 EST 2012 > (early) [ 0.000000] Command line: console=hvc0 debug earlyprintk=xen > (early) [ 0.000000] ACPI in unprivileged domain disabled > (early) [ 0.000000] Released 0 pages of unused memory > (early) [ 0.000000] Set 0 page(s) to 1-1 mapping > (early) [ 0.000000] BIOS-provided physical RAM map: > (early) [ 0.000000] Xen: 0000000000000000 - 00000000000a0000 (usable) > (early) [ 0.000000] Xen: 00000000000a0000 - 0000000000100000 (reserved) > (early) [ 0.000000] Xen: 0000000000100000 - 0000000200800000 (usable) > (early) [ 0.000000] bootconsole [xenboot0] enabled > (early) [ 0.000000] NX (Execute Disable) protection: active > (early) [ 0.000000] DMI not present or invalid. > (early) [ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (early) (usable)(early) ==> (early) (reserved)(early) > (early) [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (early) (usable)(early) > (early) [ 0.000000] No AGP bridge found > (early) [ 0.000000] last_pfn = 0x200800 max_arch_pfn = 0x400000000 > (early) [ 0.000000] last_pfn = 0x100000 max_arch_pfn = 0x400000000 > (early) [ 0.000000] initial memory mapped : 0 - 10006000 > (early) [ 0.000000] Base memory trampoline at [ffff88000009b000] 9b000 size 20480 > (early) [ 0.000000] init_memory_mapping: 0000000000000000-0000000100000000 > (early) [ 0.000000] 0000000000 - 0100000000 page 4k > (early) [ 0.000000] kernel direct mapping tables up to 100000000 @ 7fb000-1000000 > (early) [ 0.000000] xen: setting RW the range f74000 - 1000000 > (early) [ 0.000000] init_memory_mapping: 0000000100000000-0000000200800000 > (early) [ 0.000000] 0100000000 - 0200800000 page 4k > (early) [ 0.000000] kernel direct mapping tables up to 200800000 @ feff2000-100000000 > (early) [ 0.000000] xen: setting RW the range ff7fb000 - 100000000 > (early) [ 0.000000] RAMDISK: 02249000 - 10006000 > (early) [ 0.000000] No NUMA configuration found > (early) [ 0.000000] Faking a node at 0000000000000000-0000000200800000 > (early) [ 0.000000] Initmem setup node 0 0000000000000000-0000000200800000 > (early) [ 0.000000] NODE_DATA [00000000fffd9000 - 00000000ffffffff] > (early) [ 0.000000] Zone PFN ranges: > (early) [ 0.000000] DMA (early) 0x00000010 -> 0x00001000 > (early) [ 0.000000] DMA32 (early) 0x00001000 -> 0x00100000 > (early) [ 0.000000] Normal (early) 0x00100000 -> 0x00200800 > (early) [ 0.000000] Movable zone start PFN for each node > (early) [ 0.000000] Early memory PFN ranges > (early) [ 0.000000] 0: 0x00000010 -> 0x000000a0 > (early) [ 0.000000] 0: 0x00000100 -> 0x00200800 > (early) [ 0.000000] On node 0 totalpages: 2099088 > (early) [ 0.000000] DMA zone: 64 pages used for memmap > (early) [ 0.000000] DMA zone: 1918 pages reserved > (early) [ 0.000000] DMA zone: 2002 pages, LIFO batch:0 > (early) [ 0.000000] DMA32 zone: 16320 pages used for memmap > (early) [ 0.000000] DMA32 zone: 1028160 pages, LIFO batch:31 > (early) [ 0.000000] Normal zone: 16416 pages used for memmap > (early) [ 0.000000] Normal zone: 1034208 pages, LIFO batch:31 > (early) [ 0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs > (early) [ 0.000000] No local APIC present > (early) [ 0.000000] APIC: disable apic facility > (early) [ 0.000000] APIC: switched to apic NOOP > (early) [ 0.000000] nr_irqs_gsi: 16 > (early) [ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000 > (early) [ 0.000000] PCI: Warning: Cannot find a gap in the 32bit address range > (early) [ 0.000000] PCI: Unassigned devices with 32bit resource registers may break! > (early) [ 0.000000] Allocating PCI resources starting at 200900000 (gap: 200900000:400000) > (early) [ 0.000000] Booting paravirtualized kernel on Xen > (early) [ 0.000000] Xen version: 4.1-120111 (preserve-AD) > (early) [ 0.000000] setup_percpu: NR_CPUS:4096 nr_cpumask_bits:4 nr_cpu_ids:4 nr_node_ids:1 > (early) [ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff8800fff31000 s82752 r8192 d23744 u114688 > (early) [ 0.000000] pcpu-alloc: s82752 r8192 d23744 u114688 alloc=28*4096(early) > (early) [ 0.000000] pcpu-alloc: (early) [0] (early) 0 (early) [0] (early) 1 (early) [0] (early) 2 (early) [0] (early) 3 (early) > (early) [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 2064370 > (early) [ 0.000000] Policy zone: Normal > (early) [ 0.000000] Kernel command line: console=hvc0 debug earlyprintk=xen > (early) [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) > (early) [ 0.000000] Checking aperture... > (early) [ 0.000000] No AGP bridge found > (early) [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area > (early) [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! > (early) [ 0.000000] Memory: 3727344k/8396800k available (6482k kernel code, 448k absent, 4669008k reserved, 4624k data, 1256k init) > (early) [ 0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 > (early) [ 0.000000] Preemptible hierarchical RCU implementation. > (early) [ 0.000000] NR_IRQS:262400 nr_irqs:304 16 > (early) [ 0.000000] kmemleak: Early log buffer exceeded, please increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE > (early) [ 0.000000] kmemleak: Kernel memory leak detector disabled > (early) [ 0.000000] Console: colour dummy device 80x25 > (early) [ 0.000000] console [tty0] enabled > [ 0.000000] console [hvc0] enabled, bootconsole disabled > (early) [ 0.000000] console [hvc0] enabled, bootconsole disabled > [ 0.000000] Xen: using vcpuop timer interface > [ 0.000000] installing Xen timer for CPU 0 > [ 0.000000] Detected 3292.616 MHz processor. > [ 0.000999] Calibrating delay loop (skipped), value calculated using timer frequency.. 6585.23 BogoMIPS (lpj=3292616) > [ 0.000999] pid_max: default: 32768 minimum: 301 > [ 0.000999] Security Framework initialized > [ 0.000999] SELinux: Initializing. > [ 0.000999] SELinux: Starting in permissive mode > [ 0.002170] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) > [ 0.004675] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) > [ 0.005213] Mount-cache hash table entries: 256 > [ 0.005428] Initializing cgroup subsys cpuacct > [ 0.005436] Initializing cgroup subsys freezer > [ 0.005497] ENERGY_PERF_BIAS: Set to ''normal'', was ''performance'' > [ 0.005498] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) > [ 0.005510] CPU: Physical Processor ID: 0 > [ 0.005515] CPU: Processor Core ID: 0 > [ 0.005576] SMP alternatives: switching to UP code > [ 0.005999] ftrace: allocating 23453 entries in 92 pages > [ 0.006057] cpu 0 spinlock event irq 17 > [ 0.006112] Performance Events: unsupported p6 CPU model 42 no PMU driver, software events only. > [ 0.012038] NMI watchdog disabled (cpu0): hardware events not enabled > [ 0.018010] installing Xen timer for CPU 1 > [ 0.018028] cpu 1 spinlock event irq 23 > [ 0.018051] SMP alternatives: switching to SMP code > [ 0.019085] NMI watchdog disabled (cpu1): hardware events not enabled > [ 0.025009] installing Xen timer for CPU 2 > [ 0.025027] cpu 2 spinlock event irq 29 > [ 0.025121] NMI watchdog disabled (cpu2): hardware events not enabled > [ 0.031008] installing Xen timer for CPU 3 > [ 0.031024] cpu 3 spinlock event irq 35 > [ 0.031118] NMI watchdog disabled (cpu3): hardware events not enabled > [ 0.033006] Brought up 4 CPUs > [ 0.033666] kworker/u:0 used greatest stack depth: 5272 bytes left > [ 0.033666] Grant tables using version 2 layout. > [ 0.033666] Grant table initialized > [ 0.052849] RTC time: 165:165:165, date: 165/165/65 > [ 0.053033] NET: Registered protocol family 16 > [ 0.054556] PCI: setting up Xen PCI frontend stub > [ 0.054565] PCI: pci_cache_line_size set to 64 bytes > [ 0.065198] bio: create slab <bio-0> at 0 > [ 0.065198] ACPI: Interpreter disabled. > [ 0.066004] xen/balloon: Initialising balloon driver. > [ 0.076187] xen-balloon: Initialising balloon driver. > [ 0.076187] vgaarb: loaded > [ 0.077064] usbcore: registered new interface driver usbfs > [ 0.077067] usbcore: registered new interface driver hub > [ 0.077107] usbcore: registered new device driver usb > [ 0.077107] PCI: System does not support PCI > [ 0.077107] PCI: System does not support PCI > [ 0.078054] NetLabel: Initializing > [ 0.078054] NetLabel: domain hash size = 128 > [ 0.078054] NetLabel: protocols = UNLABELED CIPSOv4 > [ 0.078054] NetLabel: unlabeled traffic allowed by default > [ 0.078109] Switching to clocksource xen > [ 0.083574] pnp: PnP ACPI: disabled > [ 0.089832] PCI: max bus depth: 0 pci_try_num: 1 > [ 0.089877] NET: Registered protocol family 2 > [ 0.090665] IP route cache hash table entries: 262144 (order: 9, 2097152 bytes) > [ 0.093957] TCP established hash table entries: 524288 (order: 11, 8388608 bytes) > [ 0.095324] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes) > [ 0.095466] TCP: Hash tables configured (established 524288 bind 65536) > [ 0.095474] TCP reno registered > [ 0.095526] UDP hash table entries: 4096 (order: 5, 131072 bytes) > [ 0.095597] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes) > [ 0.095720] NET: Registered protocol family 1 > [ 0.095957] RPC: Registered named UNIX socket transport module. > [ 0.095965] RPC: Registered udp transport module. > [ 0.095970] RPC: Registered tcp transport module. > [ 0.095976] RPC: Registered tcp NFSv4.1 backchannel transport module. > [ 0.095984] PCI: CLS 0 bytes, default 64 > [ 0.096219] Trying to unpack rootfs image as initramfs... > [ 0.431565] Freeing initrd memory: 227060k freed > [ 0.475737] DMA-API: preallocated 32768 debug entries > [ 0.475961] DMA-API: debugging enabled by kernel config > [ 0.475969] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) > [ 0.475977] Placing 64MB software IO TLB between ffff8800f2800000 - ffff8800f6800000 > [ 0.475984] software IO TLB at phys 0xf2800000 - 0xf6800000 > [ 0.476324] platform rtc_cmos: registered platform RTC device (no PNP device found) > [ 0.476472] Machine check injector initialized > [ 0.477452] microcode: CPU0 sig=0x206a7, pf=0x2, revision=0x17 > [ 0.477466] microcode: CPU1 sig=0x206a7, pf=0x2, revision=0x17 > [ 0.477486] microcode: CPU2 sig=0x206a7, pf=0x2, revision=0x17 > [ 0.477503] microcode: CPU3 sig=0x206a7, pf=0x2, revision=0x17 > [ 0.477586] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba > [ 0.478032] audit: initializing netlink socket (disabled) > [ 0.478053] type=2000 audit(1326338469.110:1): initialized > [ 0.494006] HugeTLB registered 2 MB page size, pre-allocated 0 pages > [ 0.499995] VFS: Disk quotas dquot_6.5.2 > [ 0.500208] Dquot-cache hash table entries: 512 (order 0, 4096 bytes) > [ 0.501045] NTFS driver 2.1.30 [Flags: R/W]. > [ 0.501365] msgmni has been set to 7723 > [ 0.501583] SELinux: Registering netfilter hooks > [ 0.502294] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) > [ 0.502303] io scheduler noop registered > [ 0.502309] io scheduler deadline registered > [ 0.502405] io scheduler cfq registered (default) > [ 0.502633] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 > [ 0.542586] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > [ 0.573641] Non-volatile memory driver v1.3 > [ 0.573649] Linux agpgart interface v0.103 > [ 0.574083] [drm] Initialized drm 1.1.0 20060810 > [ 0.577049] brd: module loaded > [ 0.578684] loop: module loaded > [ 0.579544] Fixed MDIO Bus: probed > [ 0.579551] tun: Universal TUN/TAP device driver, 1.6 > [ 0.579556] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com> > [ 0.580300] ehci_hcd: USB 2.0 ''Enhanced'' Host Controller (EHCI) Driver > [ 0.580308] ehci_hcd: block sizes: qh 112 qtd 96 itd 192 sitd 96 > [ 0.580386] ohci_hcd: USB 1.1 ''Open'' Host Controller (OHCI) Driver > [ 0.580392] ohci_hcd: block sizes: ed 80 td 96 > [ 0.580466] uhci_hcd: USB Universal Host Controller Interface driver > [ 0.580701] usbcore: registered new interface driver usblp > [ 0.580780] usbcore: registered new interface driver libusual > [ 0.581039] i8042: PNP: No PS/2 controller found. Probing ports directly. > [ 0.581865] i8042: No controller found > [ 0.581951] mousedev: PS/2 mouse device common for all mice > [ 0.622367] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 > [ 0.622469] rtc_cmos: probe of rtc_cmos failed with error -38 > [ 0.622730] EFI Variables Facility v0.08 2004-May-17 > [ 0.622805] zram: num_devices not specified. Using default: 1 > [ 0.622812] zram: Creating 1 devices ... > [ 0.623448] Netfilter messages via NETLINK v0.30. > [ 0.623467] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) > [ 0.623780] ctnetlink v0.93: registering with nfnetlink. > [ 0.625065] ip_tables: (C) 2000-2006 Netfilter Core Team > [ 0.625099] TCP cubic registered > [ 0.625105] Initializing XFRM netlink socket > [ 0.625468] NET: Registered protocol family 10 > [ 0.627394] ip6_tables: (C) 2000-2006 Netfilter Core Team > [ 0.627485] IPv6 over IPv4 tunneling driver > [ 0.629062] NET: Registered protocol family 17 > [ 0.629097] Registering the dns_resolver key type > [ 0.629362] PM: Hibernation image not present or could not be loaded. > [ 0.629386] registered taskstats version 1 > [ 0.629448] XENBUS: Device with no driver: device/vif/0 > [ 0.629454] XENBUS: Device with no driver: device/vfb/0 > [ 0.629460] XENBUS: Device with no driver: device/vkbd/0 > [ 0.629475] Magic number: 1:252:3141 > [ 0.630415] Freeing unused kernel memory: 1256k freed > [ 0.630622] Write protecting the kernel read-only data: 10240k > [ 0.636139] Freeing unused kernel memory: 1688k freed > [ 0.636508] Freeing unused kernel memory: 112k freed > init started: BusyBox v1.14.3 (2012-01-11 13:22:11 EST) > [ 0.641820] consoletype used greatest stack depth: 5232 bytes left > Mounting directories [ OK ] > [ 0.860513] modprobe used greatest stack depth: 5008 bytes left > mount: mount point /sys/kernel/config does not exist > [ 0.865846] core_filesystem used greatest stack depth: 4880 bytes left > [ 0.874814] input: Xen Virtual Keyboard as /devices/virtual/input/input0 > [ 0.875019] input: Xen Virtual Pointer as /devices/virtual/input/input1 > [ 1.086237] Initialising Xen virtual ethernet driver. > [ 1.201417] udevd (1186): /proc/1186/oom_adj is deprecated, please use /proc/1186/oom_score_adj instead. > udevd-work[1202]: error opening ATTR{/sys/devices/system/cpu/cpu0/online} for writing: No such file or directory > > [ 1.307448] ip used greatest stack depth: 3696 bytes left > Waiting for devices [ OK ] > Waiting for fb [ OK ] > Starting..[/dev/fb0] > /dev/fb0: len:0 > /dev/fb0: bits/pixel32 > (7fa51499a000): Writting .. [800:600] > Done! > FATAL: Module agpgart_intel not found. > [ 1.464693] Console: switching to colour frame buffer device 100x37 > [ 1.478942] [drm] radeon kernel modesetting enabled. > WARNING: Error inserting video (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/acpi/video.ko): No such device > WARNING: Error inserting mxm_wmi (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/platform/x86/mxm-wmi.ko): No such device > WARNING: Error inserting drm_kms_helper (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/drm_kms_helper.ko): No such device > WARNING: Error inserting ttm (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/ttm/ttm.ko): No such device > FATAL: Error inserting nouveau (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/nouveau/nouveau.ko): No such device > WARNING: Error inserting drm_kms_helper (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/drm_kms_helper.ko): No such device > FATAL: Error inserting i915 (/lib/modules/3.2.0-05693-g2c81411/kernel/drivers/gpu/drm/i915/i915.ko): No such device > Starting..[/dev/fb0] > /dev/fb0: len:0 > /dev/fb0: bits/pixel32 > (7fc2635c3000): Writting .. [800:600] > Done! > VGA: 0000: > Waiting for network [ OK ] > Bringing up loopback interface: [ OK ] > Bringing up interface eth0: [ 1.743980] device eth0 entered promiscuous mode > [ OK ] > Bringing up interface switch: > Determining IP information for switch...[ 1.790208] switch: port 1(eth0) entering forwarding state > [ 1.790244] switch: port 1(eth0) entering forwarding state > [ 1.790880] ip used greatest stack depth: 3376 bytes left > done. > [ OK ] > Waiting for init.custom [ OK ] > > Starting SSHd ... > > SSH started [2314] > > > Waiting for SSHd [ OK ] > WARNING: ssh currently running [2314] ignoring start request > FATAL: Module dump_dma not found. > ERROR: Module dump_dma does not exist in /proc/modules > [ 3.562254] SCSI subsystem initialized > [ 3.563911] Loading iSCSI transport class v2.0-870. > [ 3.566452] iscsi: registered transport (tcp) > iscsistart: transport class version 2.0-870. iscsid version 2.0-872 > Could not get list of targets from firmware. > Jan 12 03:21:12 g-pvops syslogd 1.5.0: restart. > FATAL: Module evtchn not found. > [ 3.595640] Event-channel device installed. > xencommons should be started first. > CPU0 CPU1 CPU2 CPU3 > 16: 1330 0 0 0 xen-percpu-virq timer0 > 17: 6 0 0 0 xen-percpu-ipi spinlock0 > 18: 1872 0 0 0 xen-percpu-ipi resched0 > 19: 129 0 0 0 xen-percpu-ipi callfunc0 > 20: 0 0 0 0 xen-percpu-virq debug0 > 21: 77 0 0 0 xen-percpu-ipi callfuncsingle0 > 22: 0 1811 0 0 xen-percpu-virq timer1 > 23: 0 14 0 0 xen-percpu-ipi spinlock1 > 24: 0 2411 0 0 xen-percpu-ipi resched1 > 25: 0 140 0 0 xen-percpu-ipi callfunc1 > 26: 0 0 0 0 xen-percpu-virq debug1 > 27: 0 78 0 0 xen-percpu-ipi callfuncsingle1 > 28: 0 0 1204 0 xen-percpu-virq timer2 > 29: 0 0 5 0 xen-percpu-ipi spinlock2 > 30: 0 0 3713 0 xen-percpu-ipi resched2 > 31: 0 0 148 0 xen-percpu-ipi callfunc2 > 32: 0 0 0 0 xen-percpu-virq debug2 > 33: 0 0 103 0 xen-percpu-ipi callfuncsingle2 > 34: 0 0 0 1373 xen-percpu-virq timer3 > 35: 0 0 0 5 xen-percpu-ipi spinlock3 > 36: 0 0 0 2474 xen-percpu-ipi resched3 > 37: 0 0 0 131 xen-percpu-ipi callfunc3 > 38: 0 0 0 0 xen-percpu-virq debug3 > 39: 0 0 0 88 xen-percpu-ipi callfuncsingle3 > 40: 423 0 0 0 xen-dyn-event xenbus > 41: 81 0 0 0 xen-dyn-event hvc_console > 42: 0 0 0 0 xen-dyn-event vkbd > 43: 70 0 0 0 xen-dyn-event vfb > 44: 20 0 0 0 xen-dyn-event eth0 > NMI: 0 0 0 0 Non-maskable interrupts > LOC: 0 0 0 0 Local timer interrupts > SPU: 0 0 0 0 Spurious interrupts > PMI: 0 0 0 0 Performance monitoring interrupts > IWI: 0 0 0 0 IRQ work interrupts > RTR: 0 0 0 0 APIC ICR read retries > RES: 1872 2411 3713 2474 Rescheduling interrupts > CAL: 206 218 251 219 Function call interrupts > TLB: 0 0 0 0 TLB shootdowns > TRM: 0 0 0 0 Thermal event interrupts > THR: 0 0 0 0 Threshold APIC interrupts > MCE: 0 0 0 0 Machine check exceptions > MCP: 0 0 0 0 Machine check polls > ERR: 0 > MIS: 0 > 00000000-0000ffff : reserved > 00010000-0009ffff : System RAM > 000a0000-000fffff : reserved > 000f0000-000fffff : System ROM > 00100000-2007fffff : System RAM > 01000000-016549db : Kernel code > 016549dc-01ad89ff : Kernel data > 01c1a000-01e2afff : Kernel bss > Waiting for init.late [ OK ] > PING build.dumpdata.com (192.168.101.3) 56(84) bytes of data. > > --- build.dumpdata.com ping statistics --- > 1 packets transmitted, 1 received, 0% packet loss, time 0ms > rtt min/avg/max/mdev = 0.329/0.329/0.329/0.000 ms > NFS done > [0x0->0x100000] pfn > [0x0->0x100000] level entry > [0x100000->0x7cfffff] missing > [0x100000->0x7cfffff] level top > libxl: error: libxl.c:56:libxl_ctx_init Is xenstore daemon running? > failed to stat /var/run/xenstored.pid: No such file or directory > cannot init xl context > [ 4.481012] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com > [ 4.482152] device-mapper: multipath: version 1.3.0 loaded > 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb > 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb > 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb > 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb > 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb > 192.168.101.2:3260,1 iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb > Logging in to [iface: default, target: iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb, portal: 192.168.101.2,3260] > Jan 12 03:21:13 g-pvops iscsid: transport class version 2.0-870. iscsid version 2.0-872 > Jan 12 03:21:13 g-pvops iscsid: iSCSI daemon with pid=2387 started! > [ 4.747529] scsi0 : iSCSI Initiator over TCP/IP > [ 4.751948] connection1:0: detected conn error (1020) > iscsiadm: Could not login to [iface: default, target: iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb, portal: 192.168.101.2,3260]. > iscsiadm: initiator reported error (19 - encountered non-retryable iSCSI login failure) > Jan 12 03:21:14 g-pvops iscsid: conn 0 login rejected: initiator failed authorization with target > Jan 12 03:21:14 g-pvops iscsid: Connection1:0 to [target: iqn.2003-01.org.linux-iscsi.target:sn.726f464255f7b1dc47c8131b3471abeb, portal: 192.168.101.2,3260] through [iface: default] is shutdown. > > poweroff > No matching physical volumes found > No volume groups found > Jan 12 03:21:18 g-pvops init: starting pid 2466, tty ''/dev/tty2'': ''/bin/sh'' > Jan 12 03:21:18 g-pvops init: starting pid 2469, tty ''/dev/tty1'': ''/bin/sh'' > Jan 12 03:21:18 g-pvops init: starting pid 2470, tty ''/dev/ttyS0'': ''/bin/sh'' > Jan 12 03:21:18 g-pvops init: starting pid 2471, tty ''/dev/hvc0'': ''/bin/sh'' > > ~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.4.9 |~~~~~~~~~~~~~~~~~~~~~~~~~~ > (c) 2001-2010 The world wide DirectFB Open Source Community > (c) 2000-2004 Convergence (integrated media) GmbH > ---------------------------------------------------------------- > > (*) DirectFB/Core: Single Application Core. (2012-01-11 18:23) > sh-4.1# > sh-4.1# poweroff > (*) Direct/Memcpy: Using Generic 64bit memcpy() > Jan 12 03:21:18 g-pvops init: starting pid 2477, tty '''': ''/etc/init.d/halt'' > sh-4.1# Usage: /etc/init.d/halt {start} > The system is going down NOW! > Sent SIGTERM to all processes > (!) [ 2465: 0.000] --> Caught signal 15 (sent by pid 1, uid 0) <-- > (!) [ 2465: 0.000] --> Caught signal 11 (at 0x38, invalid address) <-- > Sent SIGKILL to all processes > Requesting system poweroff > [ 12.086915] System halted. > Parsing config file /mnt/lab/tst018/pv.xm > Daemon running with PID 3972
Tejun Heo
2012-Jan-13 18:14 UTC
[PATCH 3.3-rc] memblock: Fix alloc failure due to dumb underflow protection in memblock_find_in_range_node()
7bd0b0f0da "memblock: Reimplement memblock allocation using reverse
free area iterator" implemented simple top-down allocator using
reverse memblock iterator. To avoid underflow in the allocator loop,
it simply raised the lower boundary to the requested size under the
assumption that requested size would be far smaller than available
memblocks.
This causes early page table allocation failure under certain
configurations. Fix it by checking for underflow directly instead of
bumping up lower bound.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
LKML-Reference: <20120110202838.GA10402@phenom.dumpdata.com>
---
Sorry, I wrote the patch description and everything but forgot to
actually send it out. :)
Ingo, the new memblock allocator went too far with simplification and
caused unnecessary allocation failure. The fix is fairly obvious and
simple. Can you please route this patch?
Thanks.
mm/memblock.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/mm/memblock.c b/mm/memblock.c
index 2f55f19..77b5f22 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -106,14 +106,17 @@ phys_addr_t __init_memblock
memblock_find_in_range_node(phys_addr_t start,
if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
end = memblock.current_limit;
- /* adjust @start to avoid underflow and allocating the first page */
- start = max3(start, size, (phys_addr_t)PAGE_SIZE);
+ /* avoid allocating the first page */
+ start = max_t(phys_addr_t, start, PAGE_SIZE);
end = max(start, end);
for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL)
{
this_start = clamp(this_start, start, end);
this_end = clamp(this_end, start, end);
+ if (this_end < size)
+ continue;
+
cand = round_down(this_end - size, align);
if (cand >= this_start)
return cand;