Xen devel - Oct 2012 - [PATCH] xen PVonHVM: require at least Xen 3.4 as dom0

The XenPVHVM extensions have not been tested much on very old
hypervisors. At least Xen 3.4 gets some testing with the pvops kernel.

Require at least Xen 3.4 for the PVonHVM extensions. If an older
hypervisor is detected the extensions will be disabled and the guest
will only see emulated hardware.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
---
 arch/x86/xen/enlighten.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 0cc41f8..8566fa8 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1543,17 +1543,10 @@ static void __init xen_hvm_init_shared_info(void)
 
 static void __init init_hvm_pv_info(void)
 {
-	int major, minor;
 	uint32_t eax, ebx, ecx, edx, pages, msr, base;
 	u64 pfn;
 
 	base = xen_cpuid_base();
-	cpuid(base + 1, &eax, &ebx, &ecx, &edx);
-
-	major = eax >> 16;
-	minor = eax & 0xffff;
-	printk(KERN_INFO "Xen version %d.%d.\n", major, minor);
-
 	cpuid(base + 2, &pages, &msr, &ecx, &edx);
 
 	pfn = __pa(hypercall_page);
@@ -1604,13 +1597,29 @@ static void __init xen_hvm_guest_init(void)
 
 static bool __init xen_hvm_platform(void)
 {
+	int major, minor, old = 0;
+	uint32_t eax, ebx, ecx, edx, base;
+	bool usable = true;
+
 	if (xen_pv_domain())
 		return false;
 
-	if (!xen_cpuid_base())
+	base = xen_cpuid_base();
+	if (!base)
 		return false;
 
-	return true;
+	cpuid(base + 1, &eax, &ebx, &ecx, &edx);
+
+	major = eax >> 16;
+	minor = eax & 0xffff;
+
+	/* Require at least Xen 3.4 */
+	if (major < 3 || (major == 3 && minor < 4))
+		usable = false;
+	printk(KERN_INFO "Xen version %d.%d.%s\n",
+		major, minor, usable ? "" : " (too old)");
+
+	return usable;
 }
 
 bool xen_hvm_need_lapic(void)
-- 
1.8.0

On Tue, Oct 30, 2012 at 05:05:05PM +0100, Olaf Hering
wrote:
> The XenPVHVM extensions have not been tested much on very old
> hypervisors. At least Xen 3.4 gets some testing with the pvops kernel.
> 
> Require at least Xen 3.4 for the PVonHVM extensions. If an older
> hypervisor is detected the extensions will be disabled and the guest
> will only see emulated hardware.
> 
> Signed-off-by: Olaf Hering <olaf@aepfle.de>
>
IIRC upstream Linux PVonHVM drivers do work OK today on RHEL5 Xen, 
which advertises itself as Xen 3.1.2-based..


-- Pasi

> ---
>  arch/x86/xen/enlighten.c | 27 ++++++++++++++++++---------
>  1 file changed, 18 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index 0cc41f8..8566fa8 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -1543,17 +1543,10 @@ static void __init xen_hvm_init_shared_info(void)
>  
>  static void __init init_hvm_pv_info(void)
>  {
> -	int major, minor;
>  	uint32_t eax, ebx, ecx, edx, pages, msr, base;
>  	u64 pfn;
>  
>  	base = xen_cpuid_base();
> -	cpuid(base + 1, &eax, &ebx, &ecx, &edx);
> -
> -	major = eax >> 16;
> -	minor = eax & 0xffff;
> -	printk(KERN_INFO "Xen version %d.%d.\n", major, minor);
> -
>  	cpuid(base + 2, &pages, &msr, &ecx, &edx);
>  
>  	pfn = __pa(hypercall_page);
> @@ -1604,13 +1597,29 @@ static void __init xen_hvm_guest_init(void)
>  
>  static bool __init xen_hvm_platform(void)
>  {
> +	int major, minor, old = 0;
> +	uint32_t eax, ebx, ecx, edx, base;
> +	bool usable = true;
> +
>  	if (xen_pv_domain())
>  		return false;
>  
> -	if (!xen_cpuid_base())
> +	base = xen_cpuid_base();
> +	if (!base)
>  		return false;
>  
> -	return true;
> +	cpuid(base + 1, &eax, &ebx, &ecx, &edx);
> +
> +	major = eax >> 16;
> +	minor = eax & 0xffff;
> +
> +	/* Require at least Xen 3.4 */
> +	if (major < 3 || (major == 3 && minor < 4))
> +		usable = false;
> +	printk(KERN_INFO "Xen version %d.%d.%s\n",
> +		major, minor, usable ? "" : " (too old)");
> +
> +	return usable;
>  }
>  
>  bool xen_hvm_need_lapic(void)
> -- 
> 1.8.0
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

On Tue, Oct 30, Pasi Kärkkäinen wrote:
> On Tue, Oct 30, 2012 at 05:05:05PM +0100, Olaf Hering wrote:
> > The XenPVHVM extensions have not been tested much on very old
> > hypervisors. At least Xen 3.4 gets some testing with the pvops kernel.
> > 
> > Require at least Xen 3.4 for the PVonHVM extensions. If an older
> > hypervisor is detected the extensions will be disabled and the guest
> > will only see emulated hardware.
> > 
> > Signed-off-by: Olaf Hering <olaf@aepfle.de>
> >
> 
> IIRC upstream Linux PVonHVM drivers do work OK today on RHEL5 Xen, 
> which advertises itself as Xen 3.1.2-based..
If thats the case, and a combination thats supposed to work, the patch
can be dropped if the hvmloader does really leave room at
FE700000-FE800000.

Olaf

On Tue, 2012-10-30 at 18:28 +0000, Olaf Hering wrote:
> On Tue, Oct 30, Pasi Kärkkäinen wrote:
> 
> > On Tue, Oct 30, 2012 at 05:05:05PM +0100, Olaf Hering wrote:
> > > The XenPVHVM extensions have not been tested much on very old
> > > hypervisors. At least Xen 3.4 gets some testing with the pvops
kernel.
> > > 
> > > Require at least Xen 3.4 for the PVonHVM extensions. If an older
> > > hypervisor is detected the extensions will be disabled and the
guest
> > > will only see emulated hardware.
> > > 
> > > Signed-off-by: Olaf Hering <olaf@aepfle.de>
> > >
> > 
> > IIRC upstream Linux PVonHVM drivers do work OK today on RHEL5 Xen, 
> > which advertises itself as Xen 3.1.2-based..
> 
> If thats the case, and a combination thats supposed to work, the patch
> can be dropped if the hvmloader does really leave room at
> FE700000-FE800000.
If I understand correctly this requirements comes from the need to
support moving the shared info page in order to support kexec?

So could we do something more fine grained and limit only the kexec
support (and therefore the movement of the SI into that range) to 3.4+?

Ian.
> 
> Olaf
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

On Wed, Oct 31, Ian Campbell wrote:
> If I understand correctly this requirements comes from the need to
> support moving the shared info page in order to support kexec?
> 
> So could we do something more fine grained and limit only the kexec
> support (and therefore the movement of the SI into that range) to 3.4+?
Its not strictly about kexec. The other patch I sent out will place the
shared info page at 0xFE700000. If that range is not within a
E820_Reserved area and if the old hvmloader makes allocations within
that range, that other patch needs to be changed so that the shared info
page is done either at 0xFE700000 or within RESERVE_BRK (as it is done
currently).

Is the source code of that old RHEL available somewhere, did they patch
hvmloader at all? Providing a E820 map from a guest which was started on
such old dom0 would be a good start.

Olaf

On Tue, Oct 30, Pasi Kärkkäinen wrote:
> On Tue, Oct 30, 2012 at 05:05:05PM +0100, Olaf Hering wrote:
> > The XenPVHVM extensions have not been tested much on very old
> > hypervisors. At least Xen 3.4 gets some testing with the pvops kernel.
> IIRC upstream Linux PVonHVM drivers do work OK today on RHEL5 Xen, 
> which advertises itself as Xen 3.1.2-based..
Konrad,

based on this info, please drop this patch.
It does not fix a real bug.

Olaf

On Wed, Oct 31, 2012 at 10:29:25AM +0100, Olaf Hering
wrote:
> On Wed, Oct 31, Ian Campbell wrote:
> 
> > If I understand correctly this requirements comes from the need to
> > support moving the shared info page in order to support kexec?
> > 
> > So could we do something more fine grained and limit only the kexec
> > support (and therefore the movement of the SI into that range) to
3.4+?
> 
> Its not strictly about kexec. The other patch I sent out will place the
> shared info page at 0xFE700000. If that range is not within a
> E820_Reserved area and if the old hvmloader makes allocations within
> that range, that other patch needs to be changed so that the shared info
> page is done either at 0xFE700000 or within RESERVE_BRK (as it is done
> currently).
> 
> Is the source code of that old RHEL available somewhere, did they patch
> hvmloader at all? Providing a E820 map from a guest which was started on
> such old dom0 would be a good start.
> 
http://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xen-3.0.3-135.el5_8.5.src.rpm
That''s the userland, actual Xen hypervisor is in the kernel src.rpm.

I can provide a dmesg from a guest later today.

-- Pasi

On Wed, 2012-10-31 at 09:29 +0000, Olaf Hering wrote:
> On Wed, Oct 31, Ian Campbell wrote:
> 
> > If I understand correctly this requirements comes from the need to
> > support moving the shared info page in order to support kexec?
> > 
> > So could we do something more fine grained and limit only the kexec
> > support (and therefore the movement of the SI into that range) to
3.4+?
> 
> Its not strictly about kexec. The other patch I sent out will place the
> shared info page at 0xFE700000.
Right, but it does this only in order to support kexec, right? Is there
any other reason to relocate the shinfo in this way?
>  If that range is not within a
> E820_Reserved area and if the old hvmloader makes allocations within
> that range, that other patch needs to be changed so that the shared info
> page is done either at 0xFE700000 or within RESERVE_BRK (as it is done
> currently).
Can it not do both, depending on the detected version of Xen? That''s
what I was trying to suggest.
> Is the source code of that old RHEL available somewhere, did they patch
> hvmloader at all? Providing a E820 map from a guest which was started on
> such old dom0 would be a good start.
IIRC The .src.rpm''s are available on ftp.redhat.com, or you could
probaly find the centos versions.

Ian.

On Wed, Oct 31, 2012 at 12:21:28PM +0200, Pasi Kärkkäinen
wrote:
> On Wed, Oct 31, 2012 at 10:29:25AM +0100, Olaf Hering wrote:
> > On Wed, Oct 31, Ian Campbell wrote:
> > 
> > > If I understand correctly this requirements comes from the need
to
> > > support moving the shared info page in order to support kexec?
> > > 
> > > So could we do something more fine grained and limit only the
kexec
> > > support (and therefore the movement of the SI into that range) to
3.4+?
> > 
> > Its not strictly about kexec. The other patch I sent out will place
the
> > shared info page at 0xFE700000. If that range is not within a
> > E820_Reserved area and if the old hvmloader makes allocations within
> > that range, that other patch needs to be changed so that the shared
info
> > page is done either at 0xFE700000 or within RESERVE_BRK (as it is done
> > currently).
> > 
> > Is the source code of that old RHEL available somewhere, did they
patch
> > hvmloader at all? Providing a E820 map from a guest which was started
on
> > such old dom0 would be a good start.
> > 
> 
>
http://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xen-3.0.3-135.el5_8.5.src.rpm
> That''s the userland, actual Xen hypervisor is in the kernel
src.rpm.
> 
> I can provide a dmesg from a guest later today.
> 
dmesg from a Fedora 17 PVHVM guest with Linux 3.5.4, running on RHEL 5.8 Xen
dom0:



[    0.000000] Linux version 3.5.4-1.fc17.x86_64 (mockbuild@) (gcc version 4.7.0
20120507 (Red Hat 4.7.0-5) (GCC) ) #1 SMP Mon Sep 17 15:03:59 UTC 2012
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.5.4-1.fc17.x86_64
root=/dev/mapper/vg_f17x64hvm01-lv_root ro rd.lvm.lv=vg_f17x64hvm01/lv_root
rd.md=0 rd.dm=0 SYSFONT=T
rue KEYTABLE=fi rd.luks=0 rd.lvm.lv=vg_f17x64hvm01/lv_swap LANG=en_US.UTF-8 rhgb
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003fffabff] usable
[    0.000000] BIOS-e820: [mem 0x000000003fffac00-0x000000003fffffff] reserved
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] DMI 2.4 present.
[    0.000000] DMI: Red Hat HVM domU, BIOS 3.1.2-308.13.1.el5 09/27/2012
[    0.000000] Hypervisor detected: Xen HVM
[    0.000000] Xen version 3.1.
[    0.000000] Xen Platform PCI: I/O protocol version 1
[    0.000000] Netfront and the Xen platform PCI driver have been compiled for
this kernel: unplug emulated NICs.
[    0.000000] Blkfront and the Xen platform PCI driver have been compiled for
this kernel: unplug emulated disks.
[    0.000000] You might have to change the root device
[    0.000000] from /dev/hd[a-d] to /dev/xvd[a-d]
[    0.000000] in your root= kernel command line option
[    0.000000] HVMOP_pagetable_dying not supported
[    0.000000] e820: update [mem 0x00000000-0x0000ffff] usable ==> reserved
[    0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000000] No AGP bridge found
[    0.000000] e820: last_pfn = 0x3fffa max_arch_pfn = 0x400000000
[    0.000000] MTRR default type: uncachable
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-CBFFF write-protect
[    0.000000]   CC000-D3FFF write-back
[    0.000000]   D4000-EBFFF uncachable
[    0.000000]   EC000-FFFFF write-protect
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 0000000000 mask FF80000000 write-back
[    0.000000]   1 base 0080000000 mask FFC0000000 write-back
[    0.000000]   2 base 00C0000000 mask FFF0000000 write-back
[    0.000000]   3 base 0100000000 mask FF00000000 write-back
[    0.000000]   4 base 0200000000 mask FE00000000 write-back
[    0.000000]   5 base 0400000000 mask FC00000000 write-back
[    0.000000]   6 base 0800000000 mask FC00000000 write-back
[    0.000000]   7 base 0C00000000 mask FFC0000000 write-back
[    0.000000]   8 disabled
[    0.000000]   9 disabled
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[    0.000000] e820: update [mem 0xd0000000-0xffffffff] usable ==> reserved
[    0.000000] found SMP MP-table at [mem 0x000fccd0-0x000fccdf] mapped at
[ffff8800000fccd0]
[    0.000000] initial memory mapped: [mem 0x00000000-0x1fffffff]
[    0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576
[    0.000000] init_memory_mapping: [mem 0x00000000-0x3fff9fff]
[    0.000000]  [mem 0x00000000-0x3fdfffff] page 2M
[    0.000000]  [mem 0x3fe00000-0x3fff9fff] page 4k
[    0.000000] kernel direct mapping tables up to 0x3fff9fff @ [mem
0x1fdfe000-0x1fffffff]
[    0.000000] RAMDISK: [mem 0x36398000-0x371c3fff]
[    0.000000] ACPI: RSDP 00000000000eb340 00024 (v02    Xen)
[    0.000000] ACPI: XSDT 00000000000eb2b0 00044 (v01    Xen      HVM 00000000
HVML 00000000)
[    0.000000] ACPI: FACP 00000000000eb0c0 000F4 (v04    Xen      HVM 00000000
HVML 00000000)
[    0.000000] ACPI: DSDT 00000000000ea050 00FEA (v02    Xen      HVM 00000000
INTL 20110413)
[    0.000000] ACPI: FACS 00000000000ea010 00040
[    0.000000] ACPI: APIC 00000000000eb1c0 00072 (v02    Xen      HVM 00000000
HVML 00000000)
[    0.000000] ACPI: HPET 00000000000eb240 00038 (v01    Xen      HVM 00000000
HVML 00000000)
[    0.000000] ACPI: SSDT 00000000000eb278 00038 (v02    Xen      HVM 00000000
HVML 00000000)
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at [mem 0x0000000000000000-0x000000003fff9fff]
[    0.000000] Initmem setup node 0 [mem 0x00000000-0x3fff9fff]
[    0.000000]   NODE_DATA [mem 0x3ffe6000-0x3fff9fff]
[    0.000000]  [ffffea0000000000-ffffea0000ffffff] PMD ->
[ffff88003e600000-ffff88003f5fffff] on node 0
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x00010000-0x00ffffff]
[    0.000000]   DMA32    [mem 0x01000000-0xffffffff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00010000-0x0009efff]
[    0.000000]   node   0: [mem 0x00100000-0x3fff9fff]
[    0.000000] On node 0 totalpages: 262025
[    0.000000]   DMA zone: 64 pages used for memmap
[    0.000000]   DMA zone: 6 pages reserved
[    0.000000]   DMA zone: 3913 pages, LIFO batch:0
[    0.000000]   DMA32 zone: 4032 pages used for memmap
[    0.000000]   DMA32 zone: 254010 pages, LIFO batch:31
[    0.000000] ACPI: PM-Timer IO Port: 0x1f48
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[    0.000000] ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 1, version 17, address 0xfec00000, GSI 0-47
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 low level)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 7 global_irq 7 low level)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 low level)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 low level)
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] ACPI: IRQ2 used by override.
[    0.000000] ACPI: IRQ5 used by override.
[    0.000000] ACPI: IRQ7 used by override.
[    0.000000] ACPI: IRQ9 used by override.
[    0.000000] ACPI: IRQ10 used by override.
[    0.000000] ACPI: IRQ11 used by override.
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
[    0.000000] nr_irqs_gsi: 64
[    0.000000] PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
[    0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
[    0.000000] PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
[    0.000000] e820: [mem 0x40000000-0xffffffff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on Xen HVM
[    0.000000] setup_percpu: NR_CPUS:128 nr_cpumask_bits:128 nr_cpu_ids:1
nr_node_ids:1
[    0.000000] PERCPU: Embedded 28 pages/cpu @ffff88003fc00000 s83136 r8192
d23360 u2097152
[    0.000000] pcpu-alloc: s83136 r8192 d23360 u2097152 alloc=1*2097152
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total
pages: 257923
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.5.4-1.fc17.x86_64
root=/dev/mapper/vg_f17x64hvm01-lv_root ro rd.lvm.lv=vg_f17x64hvm01/lv_root
rd.md=0 rd.dm=0 SYSFONT=True KEYTABLE=fi rd.luks=0
rd.lvm.lv=vg_f17x64hvm01/lv_swap LANG=en_US.UTF-8 rhgb
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] __ex_table already sorted, skipping sort
[    0.000000] Checking aperture...
[    0.000000] No AGP bridge found
[    0.000000] Memory: 1000920k/1048552k available (6243k kernel code, 452k
absent, 47180k reserved, 6940k data, 1016k init)
[    0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=1,
Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:8448 nr_irqs:256 16
[    0.000000] Console: colour dummy device 80x25
[    0.000000] console [tty0] enabled
[    0.000000] Cannot get hvm parameter 18: -22!
[    0.000000] allocated 4194304 bytes of page_cgroup
[    0.000000] please try ''cgroup_disable=memory'' option if
you don''t want memory cgroups
[    0.000000] hpet clockevent registered
[    0.000000] Fast TSC calibration using PIT
[    0.000000] Detected 2266.865 MHz processor.
[    0.002002] Calibrating delay loop (skipped), value calculated using timer
frequency.. 4533.73 BogoMIPS (lpj=2266865)
[    0.002011] pid_max: default: 32768 minimum: 301
[    0.002042] Security Framework initialized
[    0.002051] SELinux:  Initializing.
[    0.002064] SELinux:  Starting in permissive mode
[    0.002246] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.002574] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
[    0.003077] Mount-cache hash table entries: 256
[    0.003313] Initializing cgroup subsys cpuacct
[    0.003320] Initializing cgroup subsys memory
[    0.003334] Initializing cgroup subsys devices
[    0.003339] Initializing cgroup subsys freezer
[    0.003343] Initializing cgroup subsys net_cls
[    0.003347] Initializing cgroup subsys blkio
[    0.003351] Initializing cgroup subsys perf_event
[    0.003453] mce: CPU supports 0 MCE banks
[    0.003693] SMP alternatives: switching to UP code
[    0.025713] Freeing SMP alternatives: 24k freed
[    0.025736] ACPI: Core revision 20120320
[    0.026449] ftrace: allocating 23073 entries in 91 pages
[    0.039831] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.049847] CPU0: Intel(R) Xeon(R) CPU           L5640  @ 2.27GHz stepping 02
[    0.049996] Performance Events: unsupported p6 CPU model 44 no PMU driver,
software events only.
[    0.049996] NMI watchdog: disabled (cpu0): hardware events not enabled
[    0.049996] Brought up 1 CPUs
[    0.049996] Total of 1 processors activated (4533.73 BogoMIPS).
[    0.051186] devtmpfs: initialized
[    0.052641] atomic64 test passed for x86-64 platform with CX8 and with SSE
[    0.052680] RTC time: 11:39:09, date: 10/31/12
[    0.052726] NET: Registered protocol family 16
[    0.053044] ACPI: bus type pci registered
[    0.053398] PCI: Using configuration type 1 for base access
[    0.054494] bio: create slab <bio-0> at 0
[    0.054574] ACPI: Added _OSI(Module Device)
[    0.054579] ACPI: Added _OSI(Processor Device)
[    0.054583] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.054587] ACPI: Added _OSI(Processor Aggregator Device)
[    0.055150] ACPI: EC: Look up EC in DSDT
[    0.056561] ACPI: Interpreter enabled
[    0.056569] ACPI: (supports S0 S5)
[    0.056586] ACPI: Using IOAPIC for interrupt routing
[    0.058580] ACPI: No dock devices found.
[    0.058589] PCI: Using host bridge windows from ACPI; if necessary, use
"pci=nocrs" and report a bug
[    0.058623] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.058662] pci_root PNP0A03:00: host bridge window [io  0x0000-0x0cf7]
[    0.058668] pci_root PNP0A03:00: host bridge window [io  0x0d00-0xffff]
[    0.058674] pci_root PNP0A03:00: host bridge window [mem
0x000a0000-0x000bffff]
[    0.058680] pci_root PNP0A03:00: host bridge window [mem
0xf0000000-0xf4ffffff]
[    0.058719] PCI host bridge to bus 0000:00
[    0.058725] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7]
[    0.058730] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff]
[    0.058734] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
[    0.058740] pci_bus 0000:00: root bus resource [mem 0xf0000000-0xf4ffffff]
[    0.058888] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
[    0.060341] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100
[    0.062468] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180
[    0.063798] pci 0000:00:01.1: reg 20: [io  0xc000-0xc00f]
[    0.064737] pci 0000:00:01.2: [8086:7113] type 00 class 0x068000
[    0.066604] pci 0000:00:01.2: quirk: [io  0x1f40-0x1f7f] claimed by PIIX4
ACPI
[    0.067167] pci 0000:00:01.3: [8086:7020] type 00 class 0x0c0300
[    0.068505] pci 0000:00:01.3: reg 20: [io  0xc020-0xc03f]
[    0.069531] pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000
[    0.069840] pci 0000:00:02.0: reg 10: [mem 0xf0000000-0xf1ffffff pref]
[    0.070066] pci 0000:00:02.0: reg 14: [mem 0xf2000000-0xf2000fff]
[    0.071671] pci 0000:00:03.0: [5853:0001] type 00 class 0x010000
[    0.072032] pci 0000:00:03.0: reg 10: [io  0xc100-0xc1ff]
[    0.072275] pci 0000:00:03.0: reg 14: [mem 0xf3000000-0xf3ffffff pref]
[    0.074114] pci 0000:00:06.0: [8086:10ed] type 00 class 0x020000
[    0.075080] pci 0000:00:06.0: reg 10: [mem 0xf4020000-0xf4023fff 64bit]
[    0.076389] pci 0000:00:06.0: reg 1c: [mem 0xf4024000-0xf4027fff 64bit]
[    0.079467] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[    0.079705]  pci0000:00: Unable to request _OSC control (_OSC support mask:
0x1e)
[    0.083474] ACPI: PCI Interrupt Link [LNKA] (IRQs *5 7 10 11)
[    0.083650] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *7 10 11)
[    0.083822] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 7 *10 11)
[    0.084068] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 7 10 *11)
[    0.084195] xen/balloon: Initialising balloon driver.
[    0.084212] xen-balloon: Initialising balloon driver.
[    0.084340] vgaarb: device added:
PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[    0.084348] vgaarb: loaded
[    0.084351] vgaarb: bridge control possible 0000:00:02.0
[    0.084431] SCSI subsystem initialized
[    0.084468] libata version 3.00 loaded.
[    0.084501] ACPI: bus type usb registered
[    0.084524] usbcore: registered new interface driver usbfs
[    0.084537] usbcore: registered new interface driver hub
[    0.084562] usbcore: registered new device driver usb
[    0.084626] PCI: Using ACPI for IRQ routing
[    0.084631] PCI: pci_cache_line_size set to 64 bytes
[    0.085209] e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff]
[    0.085212] e820: reserve RAM buffer [mem 0x3fffac00-0x3fffffff]
[    0.085323] NetLabel: Initializing
[    0.085328] NetLabel:  domain hash size = 128
[    0.085331] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.085344] NetLabel:  unlabeled traffic allowed by default
[    0.085416] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
[    0.085431] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    0.085438] hpet0: 3 comparators, 64-bit 70.836816 MHz counter
[    0.088026] Switching to clocksource hpet
[    0.096355] pnp: PnP ACPI init
[    0.096371] ACPI: bus type pnp registered
[    0.096392] pnp 00:00: [mem 0x00000000-0x0009ffff]
[    0.096425] system 00:00: [mem 0x00000000-0x0009ffff] could not be reserved
[    0.096433] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.096465] pnp 00:01: [bus 00-ff]
[    0.096468] pnp 00:01: [io  0x0cf8-0x0cff]
[    0.096471] pnp 00:01: [io  0x0000-0x0cf7 window]
[    0.096473] pnp 00:01: [io  0x0d00-0xffff window]
[    0.096476] pnp 00:01: [mem 0x000a0000-0x000bffff window]
[    0.096479] pnp 00:01: [mem 0xf0000000-0xf4ffffff]
[    0.096503] pnp 00:01: Plug and Play ACPI device, IDs PNP0a03 (active)
[    0.096513] pnp 00:02: [io  0x10c0-0x10c2]
[    0.096516] pnp 00:02: [io  0xb044-0xb047]
[    0.096545] system 00:02: [io  0x10c0-0x10c2] has been reserved
[    0.096551] system 00:02: [io  0xb044-0xb047] has been reserved
[    0.096557] system 00:02: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.096811] pnp 00:03: [mem 0xfed00000-0xfed003ff]
[    0.096835] pnp 00:03: Plug and Play ACPI device, IDs PNP0103 (active)
[    0.096857] pnp 00:04: [io  0x0010-0x001f]
[    0.096859] pnp 00:04: [io  0x0022-0x002d]
[    0.096862] pnp 00:04: [io  0x0030-0x003f]
[    0.096864] pnp 00:04: [io  0x0044-0x005f]
[    0.096866] pnp 00:04: [io  0x0062-0x0063]
[    0.096868] pnp 00:04: [io  0x0065-0x006f]
[    0.096871] pnp 00:04: [io  0x0072-0x007f]
[    0.096873] pnp 00:04: [io  0x0080]
[    0.096875] pnp 00:04: [io  0x0084-0x0086]
[    0.096877] pnp 00:04: [io  0x0088]
[    0.096879] pnp 00:04: [io  0x008c-0x008e]
[    0.096882] pnp 00:04: [io  0x0090-0x009f]
[    0.096884] pnp 00:04: [io  0x00a2-0x00bd]
[    0.096886] pnp 00:04: [io  0x00e0-0x00ef]
[    0.096888] pnp 00:04: [io  0x08a0-0x08a3]
[    0.096891] pnp 00:04: [io  0x0cc0-0x0ccf]
[    0.096893] pnp 00:04: [io  0x04d0-0x04d1]
[    0.096932] system 00:04: [io  0x08a0-0x08a3] has been reserved
[    0.096939] system 00:04: [io  0x0cc0-0x0ccf] has been reserved
[    0.096944] system 00:04: [io  0x04d0-0x04d1] has been reserved
[    0.096950] system 00:04: Plug and Play ACPI device, IDs PNP0c02 (active)
[    0.096964] pnp 00:05: [dma 4]
[    0.096966] pnp 00:05: [io  0x0000-0x000f]
[    0.096969] pnp 00:05: [io  0x0081-0x0083]
[    0.096971] pnp 00:05: [io  0x0087]
[    0.096973] pnp 00:05: [io  0x0089-0x008b]
[    0.096976] pnp 00:05: [io  0x008f]
[    0.096978] pnp 00:05: [io  0x00c0-0x00df]
[    0.096980] pnp 00:05: [io  0x0480-0x048f]
[    0.097002] pnp 00:05: Plug and Play ACPI device, IDs PNP0200 (active)
[    0.097063] pnp 00:06: [io  0x0070-0x0071]
[    0.097084] pnp 00:06: [irq 8]
[    0.097115] pnp 00:06: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.097125] pnp 00:07: [io  0x0061]
[    0.097147] pnp 00:07: Plug and Play ACPI device, IDs PNP0800 (active)
[    0.097185] pnp 00:08: [irq 12]
[    0.097212] pnp 00:08: Plug and Play ACPI device, IDs PNP0f13 (active)
[    0.097230] pnp 00:09: [io  0x0060]
[    0.097232] pnp 00:09: [io  0x0064]
[    0.097251] pnp 00:09: [irq 1]
[    0.097279] pnp 00:09: Plug and Play ACPI device, IDs PNP0303 PNP030b
(active)
[    0.097299] pnp 00:0a: [io  0x03f0-0x03f5]
[    0.097301] pnp 00:0a: [io  0x03f7]
[    0.097319] pnp 00:0a: [irq 6]
[    0.097322] pnp 00:0a: [dma 2]
[    0.097346] pnp 00:0a: Plug and Play ACPI device, IDs PNP0700 (active)
[    0.097372] pnp 00:0b: [io  0x03f8-0x03ff]
[    0.097391] pnp 00:0b: [irq 4]
[    0.097419] pnp 00:0b: Plug and Play ACPI device, IDs PNP0501 (active)
[    0.097565] pnp: PnP ACPI: found 12 devices
[    0.097570] ACPI: ACPI bus type pnp unregistered
[    0.103895] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7]
[    0.103899] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff]
[    0.103902] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
[    0.103904] pci_bus 0000:00: resource 7 [mem 0xf0000000-0xf4ffffff]
[    0.103942] NET: Registered protocol family 2
[    0.104059] IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
[    0.104396] TCP established hash table entries: 131072 (order: 9, 2097152
bytes)
[    0.104917] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    0.105164] TCP: Hash tables configured (established 131072 bind 65536)
[    0.105169] TCP: reno registered
[    0.105178] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.105191] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.105254] NET: Registered protocol family 1
[    0.105268] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[    0.105329] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[    0.105405] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[    0.105882] pci 0000:00:02.0: Boot video device
[    0.106032] PCI: CLS 0 bytes, default 64
[    0.106076] Unpacking initramfs...
[    0.514071] Freeing initrd memory: 14512k freed
[    0.520187] alg: No test for __gcm-aes-aesni (__driver-gcm-aes-aesni)
[    0.520475] audit: initializing netlink socket (disabled)
[    0.520493] type=2000 audit(1351683549.519:1): initialized
[    0.548550] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.550379] VFS: Disk quotas dquot_6.5.2
[    0.550435] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.550892] msgmni has been set to 1983
[    0.550959] SELinux:  Registering netfilter hooks
[    0.551447] alg: No test for stdrng (krng)
[    0.551455] NET: Registered protocol family 38
[    0.551501] Block layer SCSI generic (bsg) driver version 0.4 loaded (major
252)
[    0.551540] io scheduler noop registered
[    0.551544] io scheduler deadline registered
[    0.551580] io scheduler cfq registered (default)
[    0.551684] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    0.551709] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[    0.551714] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.551777] acpiphp: Slot [1] registered
[    0.551797] acpiphp: Slot [2] registered
[    0.551909] efifb: probing for efifb
[    0.552061] efifb: framebuffer at 0xf0000000, mapped to 0xffffc90000500000,
using 1408k, total 1408k
[    0.552068] efifb: mode is 800x600x24, linelength=2400, pages=1
[    0.552071] efifb: scrolling: redraw
[    0.552075] efifb: Truecolor: size=0:8:8:8, shift=0:16:8:0
[    0.554963] Console: switching to colour frame buffer device 100x37
[    0.557505] fb0: EFI VGA frame buffer device
[    0.557558] intel_idle: does not run on family 6 model 44
[    0.559150] GHES: HEST is not enabled!
[    0.560329] Grant tables using version 1 layout.
[    0.561053] Grant table initialized
[    0.563974] Cannot get hvm parameter 18: -22!
[    0.564057] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.564761] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16450
[    0.567223] 00:0b: ttyS0 at I/O 0x3f8 (irq = 4) is a 16450
[    0.568715] Non-volatile memory driver v1.3
[    0.569901] Linux agpgart interface v0.103
[    0.571940] loop: module loaded
[    0.573169] ata_piix 0000:00:01.1: version 2.13
[    0.573412] ata_piix 0000:00:01.1: setting latency timer to 64
[    0.573953] scsi0 : ata_piix
[    0.575153] scsi1 : ata_piix
[    0.576294] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14
[    0.577438] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15
[    0.579517] Fixed MDIO Bus: probed
[    0.581517] ehci_hcd: USB 2.0 ''Enhanced'' Host Controller
(EHCI) Driver
[    0.582644] ohci_hcd: USB 1.1 ''Open'' Host Controller (OHCI)
Driver
[    0.583781] uhci_hcd: USB Universal Host Controller Interface driver
[    0.585135] uhci_hcd 0000:00:01.3: setting latency timer to 64
[    0.585173] uhci_hcd 0000:00:01.3: UHCI Host Controller
[    0.586346] uhci_hcd 0000:00:01.3: new USB bus registered, assigned bus
number 1
[    0.587784] uhci_hcd 0000:00:01.3: irq 23, io base 0x0000c020
[    0.589922] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
[    0.591061] usb usb1: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    0.592231] usb usb1: Product: UHCI Host Controller
[    0.593403] usb usb1: Manufacturer: Linux 3.5.4-1.fc17.x86_64 uhci_hcd
[    0.594585] usb usb1: SerialNumber: 0000:00:01.3
[    0.595842] hub 1-0:1.0: USB hub found
[    0.597033] hub 1-0:1.0: 2 ports detected
[    0.598354] usbcore: registered new interface driver usbserial
[    0.599501] usbcore: registered new interface driver usbserial_generic
[    0.600611] USB Serial support registered for generic
[    0.601705] usbserial: USB Serial Driver core
[    0.602837] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at
0x60,0x64 irq 1,12
[    0.606311] serio: i8042 KBD port at 0x60,0x64 irq 1
[    0.607478] serio: i8042 AUX port at 0x60,0x64 irq 12
[    0.608710] mousedev: PS/2 mouse device common for all mice
[    0.610891] input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input0
[    0.618267] rtc_cmos 00:06: rtc core: registered rtc_cmos as rtc0
[    0.619536] rtc0: alarms up to one day, 114 bytes nvram, hpet irqs
[    0.626404] device-mapper: uevent: version 1.0.3
[    0.629046] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised:
dm-devel@redhat.com
[    0.630380] cpuidle: using governor ladder
[    0.631644] cpuidle: using governor menu
[    0.632955] EFI Variables Facility v0.08 2004-May-17
[    0.634343] usbcore: registered new interface driver usbhid
[    0.635674] usbhid: USB HID core driver
[    0.636960] drop_monitor: Initializing network drop monitor service
[    0.638351] ip_tables: (C) 2000-2006 Netfilter Core Team
[    0.639670] TCP: cubic registered
[    0.640945] Initializing XFRM netlink socket
[    0.642333] NET: Registered protocol family 10
[    0.643824] mip6: Mobile IPv6
[    0.645084] NET: Registered protocol family 17
[    0.646337] Key type dns_resolver registered
[    0.647724] PM: Hibernation image not present or could not be loaded.
[    0.647735] registered taskstats version 1
[    0.649679] XENBUS: Device with no driver: device/vbd/768
[    0.650905] XENBUS: Device with no driver: device/vbd/5632
[    0.652099] XENBUS: Device with no driver: device/pci/0
[    0.653302] XENBUS: Device with no driver: device/vif/0
[    0.654508]   Magic number: 0:653:682
[    0.655758] rtc_cmos 00:06: setting system clock to 2012-10-31 11:39:09 UTC
(1351683549)
[    0.734310] ata2.00: ATAPI: QEMU CD-ROM, 0.8.2, max UDMA/100
[    0.737067] ata2.00: configured for MWDMA2
[    0.740507] scsi 1:0:0:0: CD-ROM            QEMU     QEMU CD-ROM      0.8.
PQ: 0 ANSI: 5
[    0.743836] ata2: drained 28 bytes to clear DRQ
[    0.743841] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[    0.745072] ata2.00: BMDMA stat 0x5
[    0.746296] sr 1:0:0:0: CDB:
[    0.747495] Mode Sense(10): 5a 00 2a 00 00 00 00 00 80 00
[    0.748728] ata2.00: cmd a0/01:00:00:80:00/00:00:00:00:00/a0 tag 0 dma 16512
in
[    0.748728]          res 48/00:02:00:1c:00/00:00:00:00:00/a0 Emask 0x2 (HSM
violation)
[    0.751056] ata2.00: status: { DRDY DRQ }
[    0.752576] ata2: soft resetting link
[    0.900093] usb 1-2: new full-speed USB device number 2 using uhci_hcd
[    0.908193] ata2.00: configured for MWDMA2
[    0.909947] ata2: EH complete
[    0.911089] sr0: scsi-1 drive
[    0.912203] cdrom: Uniform CD-ROM driver Revision: 3.20
[    0.913431] sr 1:0:0:0: Attached scsi CD-ROM sr0
[    0.913907] sr 1:0:0:0: Attached scsi generic sg0 type 5
[    0.917115] Freeing unused kernel memory: 1016k freed
[    0.918435] Write protecting the kernel read-only data: 12288k
[    0.927222] Freeing unused kernel memory: 1936k freed
[    0.936163] Freeing unused kernel memory: 1464k freed
[    0.995483] dracut: dracut-018-98.git20120813.fc17
[    1.044758] udevd[118]: starting version 182
[    1.065510] input: ImExPS/2 Generic Explorer Mouse as
/devices/platform/i8042/serio1/input/input1
[    1.118295] dracut: Starting plymouth daemon
[    1.312103] blkfront: xvda: barrier or flush: disabled
[    1.313300] vbd vbd-5632: 19 xenbus_dev_probe on device/vbd/5632
[    1.320460]  xvda: xvda1 xvda2
[    1.364359] usb 1-2: New USB device found, idVendor=0627, idProduct=0001
[    1.364364] usb 1-2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.364367] usb 1-2: Product: QEMU USB Tablet
[    1.364369] usb 1-2: Manufacturer: QEMU 0.8.2
[    1.364372] usb 1-2: SerialNumber: 1
[    1.518082] Refined TSC clocksource calibration: 2266.775 MHz.
[    1.518088] Switching to clocksource tsc
[    1.524582] input: QEMU 0.8.2 QEMU USB Tablet as
/devices/pci0000:00/0000:00:01.3/usb1/1-2/1-2:1.0/input/input2
[    1.524691] hid-generic 0003:0627:0001.0001: input,hidraw0: USB HID v0.01
Pointer [QEMU 0.8.2 QEMU USB Tablet] on usb-0000:00:01.3-2/input0
[    1.565662] dracut: Scanning devices xvda2  for LVM logical volumes
vg_f17x64hvm01/lv_root vg_f17x64hvm01/lv_swap
[    1.576180] dracut: inactive ''/dev/vg_f17x64hvm01/lv_swap''
[1.97 GiB] inherit
[    1.576412] dracut: inactive ''/dev/vg_f17x64hvm01/lv_root''
[15.53 GiB] inherit
[    1.726230] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts:
(null)
[    1.784148] dracut: Checking ext4: /dev/mapper/vg_f17x64hvm01-lv_root
[    1.784351] dracut: issuing e2fsck -a  /dev/mapper/vg_f17x64hvm01-lv_root
[    1.801138] dracut: /dev/mapper/vg_f17x64hvm01-lv_root: clean, 28180/1018000
files, 327793/4071424 blocks
[    1.802385] dracut: Remounting /dev/mapper/vg_f17x64hvm01-lv_root with -o ro
[    1.822950] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts:
(null)
[    1.854460] dracut: Mounted root filesystem
/dev/mapper/vg_f17x64hvm01-lv_root
[    1.935263] dracut: Switching root


-- Pasi