Sylvain CHEVALIER
2010-Sep-27 06:59 UTC
[Xen-users] Can''t boot a 32bits domU on a 64bits dom0
Hi, I am running a gentoo xen dom0, with a few gentoo domU guests and a windows 2008 server HVM, all are 64bits versions. Now, I need a 32bits linux guest, so I (cross-) compiled a 32bits kernel and prepared a 32bits minimal disk. I tried to make sure I kept the same kernel parameters as for my 64bits guests. I am running xen 4.0.0, PAE is not enabled and tmem is not started. When I try to boot my new 32bits domU, it will crash while loading the kernel with a "BUG: unable to handle kernel paging request at ..." Here is what is logged to the console: messi ~ # xm create /data/xen/configs/gentooU32b -c Using config file "/data/xen/configs/gentooU32b". Started domain gentooU32b (id=3) [ 0.000000] Reserving virtual address space above 0xf5800000 [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 2.6.34-xen-r3 (root@messi) (gcc version 4.5.1 (Gentoo 4.5.1 p1.1, pie-0.4.5) ) #8 SMP Mon Sep 27 14:15:53 CST 2010 [ 0.000000] Xen-provided physical RAM map: [ 0.000000] Xen: 0000000000000000 - 0000000080800000 (usable) [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] last_pfn = 0x80800 max_arch_pfn = 0x10000000 [ 0.000000] init_memory_mapping: 0000000000000000-000000002d1fe000 [ 0.000000] 1334MB HIGHMEM available. [ 0.000000] 721MB LOWMEM available. [ 0.000000] mapped low ram: 0 - 2d1fe000 [ 0.000000] low ram: 0 - 2d1fe000 [ 0.000000] Zone PFN ranges: [ 0.000000] DMA 0x00000000 -> 0x00001000 [ 0.000000] Normal 0x00001000 -> 0x0002d1fe [ 0.000000] HighMem 0x0002d1fe -> 0x00080800 [ 0.000000] Movable zone start PFN for each node [ 0.000000] early_node_map[2] active PFN ranges [ 0.000000] 0: 0x00000000 -> 0x00080000 [ 0.000000] 0: 0x00080800 -> 0x00080800 [ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 10 pages/cpu @c179f000 s18708 r0 d22252 u65536 [ 0.000000] pcpu-alloc: s18708 r0 d22252 u65536 alloc=16*4096 [ 0.000000] pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 [ 0.000000] pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 [ 0.000000] Swapping MFNs for PFN 16e7 and 17a0 (MFN 298bce and 298b15) [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 520175 [ 0.000000] Kernel command line: root=/dev/sda1 ro 3 xencons=tty [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Enabling fast FPU save and restore... done. [ 0.000000] Enabling unmasked SIMD FPU exception support... done. [ 0.000000] Initializing CPU#0 [ 0.000000] Software IO TLB disabled [ 0.000000] Subtract (43 early reservations) [ 0.000000] #1 [0001000000 - 00017903f8] TEXT DATA BSS [ 0.000000] #2 [00019a1000 - 00019b4000] Xen provided [ 0.000000] #3 [00019b4000 - 0001b11000] PGTABLE [ 0.000000] #4 [0001791000 - 0001792000] BOOTMEM [ 0.000000] #5 [0001b11000 - 0002b21000] BOOTMEM [ 0.000000] #6 [0001790400 - 0001790404] BOOTMEM [ 0.000000] #7 [0001790440 - 0001790500] BOOTMEM [ 0.000000] #8 [0001790500 - 0001790544] BOOTMEM [ 0.000000] #9 [0001792000 - 0001795000] BOOTMEM [ 0.000000] #10 [0001790580 - 0001790600] BOOTMEM [ 0.000000] #11 [0001795000 - 000179b000] BOOTMEM [ 0.000000] #12 [0002b21000 - 0002d23000] BOOTMEM [ 0.000000] #13 [000179b000 - 000179b008] BOOTMEM [ 0.000000] #14 [0001790600 - 0001790604] BOOTMEM [ 0.000000] #15 [000179c000 - 000179d000] BOOTMEM [ 0.000000] #16 [0001790640 - 0001790660] BOOTMEM [ 0.000000] #17 [0001790680 - 00017906a0] BOOTMEM [ 0.000000] #18 [000179f000 - 00017a9000] BOOTMEM [ 0.000000] #19 [00017af000 - 00017b9000] BOOTMEM [ 0.000000] #20 [00017bf000 - 00017c9000] BOOTMEM [ 0.000000] #21 [00017cf000 - 00017d9000] BOOTMEM [ 0.000000] #22 [00017df000 - 00017e9000] BOOTMEM [ 0.000000] #23 [00017ef000 - 00017f9000] BOOTMEM [ 0.000000] #24 [00017ff000 - 0001809000] BOOTMEM [ 0.000000] #25 [000180f000 - 0001819000] BOOTMEM [ 0.000000] #26 [000181f000 - 0001829000] BOOTMEM [ 0.000000] #27 [000182f000 - 0001839000] BOOTMEM [ 0.000000] #28 [000183f000 - 0001849000] BOOTMEM [ 0.000000] #29 [000184f000 - 0001859000] BOOTMEM [ 0.000000] #30 [000185f000 - 0001869000] BOOTMEM [ 0.000000] #31 [000186f000 - 0001879000] BOOTMEM [ 0.000000] #32 [000187f000 - 0001889000] BOOTMEM [ 0.000000] #33 [000188f000 - 0001899000] BOOTMEM [ 0.000000] #34 [00017906c0 - 00017906c4] BOOTMEM [ 0.000000] #35 [0001790700 - 0001790704] BOOTMEM [ 0.000000] #36 [0001790740 - 0001790780] BOOTMEM [ 0.000000] #37 [0001790780 - 00017907c0] BOOTMEM [ 0.000000] #38 [00017907c0 - 0001790840] BOOTMEM [ 0.000000] #39 [0001790840 - 000179086c] BOOTMEM [ 0.000000] #40 [00017a9000 - 00017ad000] BOOTMEM [ 0.000000] #41 [0001899000 - 0001919000] BOOTMEM [ 0.000000] #42 [0001919000 - 0001959000] BOOTMEM [ 0.000000] Initializing HighMem for node 0 (0002d1fe:00080800) [ 0.000000] Memory: 2067956k/2105344k available (4359k kernel code, 29196k reserved, 2490k data, 232k init, 1357832k highmem) [ 0.000000] virtual kernel memory layout: [ 0.000000] fixmap : 0xf55c7000 - 0xf57ff000 (2272 kB) [ 0.000000] pkmap : 0xf5200000 - 0xf5400000 (2048 kB) [ 0.000000] vmalloc : 0xed9fe000 - 0xf51fe000 ( 120 MB) [ 0.000000] lowmem : 0xc0000000 - 0xed1fe000 ( 721 MB) [ 0.000000] .init : 0xc16b1000 - 0xc16eb000 ( 232 kB) [ 0.000000] .data : 0xc1441e32 - 0xc16b09f8 (2490 kB) [ 0.000000] .text : 0xc1000000 - 0xc1441e32 (4359 kB) [ 0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok. [ 0.000000] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] NR_IRQS:1360 nr_irqs:1360 [ 0.000000] Xen reported: 2261.040 MHz processor. [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [tty-1] enabled [ 0.060003] Calibrating delay using timer specific routine.. 4536.32 BogoMIPS (lpj=2268162) [ 0.060052] Security Framework initialized [ 0.060060] SELinux: Initializing. [ 0.060094] Mount-cache hash table entries: 512 [ 0.060291] Initializing cgroup subsys ns [ 0.060300] Initializing cgroup subsys cpuacct [ 0.060312] Initializing cgroup subsys freezer [ 0.060371] Checking ''hlt'' instruction... OK. [ 0.060701] SMP alternatives: switching to UP code [ 0.073507] Brought up 1 CPUs [ 0.073696] khelper used greatest stack depth: 7264 bytes left [ 0.074312] NET: Registered protocol family 16 [ 0.076085] SMP alternatives: switching to SMP code [ 0.000009] Initializing CPU#1 [ 0.095045] Initializing CPU#2 [ 0.099035] Initializing CPU#3 [ 0.103033] Initializing CPU#4 [ 0.107033] Initializing CPU#5 [ 0.111034] Initializing CPU#6 [ 0.115034] Initializing CPU#7 [ 0.119048] Initializing CPU#8 [ 0.124048] Initializing CPU#9 [ 0.129047] Initializing CPU#10 [ 0.134049] Initializing CPU#11 [ 0.139048] Initializing CPU#12 [ 0.145049] Initializing CPU#13 [ 0.150050] Initializing CPU#14 [ 0.155049] Initializing CPU#15 [ 0.160035] Brought up 16 CPUs [ 0.160044] PCI: Fatal: No config space access function found [ 0.160050] PCI: setting up Xen PCI frontend stub [ 0.160102] khelper used greatest stack depth: 7136 bytes left [ 0.164091] khelper used greatest stack depth: 6996 bytes left [ 0.173051] khelper used greatest stack depth: 6956 bytes left [ 0.175050] bio: create slab <bio-0> at 0 [ 0.177030] vgaarb: loaded [ 0.177039] suspend: event channel 51 [ 0.179035] xen_mem: Initialising balloon driver. [ 0.180059] SCSI subsystem initialized [ 0.181039] usbcore: registered new interface driver usbfs [ 0.181039] usbcore: registered new interface driver hub [ 0.181039] usbcore: registered new device driver usb [ 0.182053] Advanced Linux Sound Architecture Driver Version 1.0.22.1. [ 0.182053] PCI: System does not support PCI [ 0.182053] PCI: System does not support PCI [ 0.183032] cfg80211: Calling CRDA to update world regulatory domain [ 0.183032] NetLabel: Initializing [ 0.183032] NetLabel: domain hash size = 128 [ 0.183032] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.183042] NetLabel: unlabeled traffic allowed by default [ 0.183083] Switching to clocksource xen [ 0.188324] NET: Registered protocol family 2 [ 0.188398] IP route cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.188650] TCP established hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.189012] TCP bind hash table entries: 65536 (order: 7, 524288 bytes) [ 0.189169] TCP: Hash tables configured (established 131072 bind 65536) [ 0.189176] TCP reno registered [ 0.189182] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 0.189193] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 0.189360] NET: Registered protocol family 1 [ 0.190292] RPC: Registered udp transport module. [ 0.190300] RPC: Registered tcp transport module. [ 0.190305] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.190641] platform rtc_cmos: registered platform RTC device (no PNP device found) [ 0.201051] khelper used greatest stack depth: 6720 bytes left [ 0.202268] audit: initializing netlink socket (disabled) [ 0.202286] type=2000 audit(1285568673.255:1): initialized [ 0.277095] highmem bounce pool size: 64 pages [ 0.284232] VFS: Disk quotas dquot_6.5.2 [ 0.284402] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 0.286915] msgmni has been set to 1443 [ 0.288998] alg: No test for stdrng (krng) [ 0.289275] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) [ 0.289291] io scheduler noop registered [ 0.289298] io scheduler deadline registered [ 0.289463] io scheduler cfq registered (default) [ 0.289793] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.290273] Non-volatile memory driver v1.3 [ 0.290287] Linux agpgart interface v0.103 [ 0.290754] [drm] Initialized drm 1.1.0 20060810 [ 0.295217] brd: module loaded [ 0.297327] loop: module loaded [ 0.304309] Xen virtual console successfully installed as tty1 [ 0.308724] netfront: Initialising virtual ethernet driver. [ 0.313732] Intel(R) PRO/1000 Network Driver - version 7.3.21-k5-NAPI [ 0.313742] Copyright (c) 1999-2006 Intel Corporation. [ 0.313873] e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k2 [ 0.313880] e1000e: Copyright (c) 1999 - 2009 Intel Corporation. [ 0.314136] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 0.314144] e100: Copyright(c) 1999-2006 Intel Corporation [ 0.314515] sky2: driver version 1.27 [ 0.314866] tun: Universal TUN/TAP device driver, 1.6 [ 0.314873] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com> [ 0.315117] console [netcon0] enabled [ 0.315123] netconsole: network logging started [ 0.315558] ehci_hcd: USB 2.0 ''Enhanced'' Host Controller (EHCI) Driver [ 0.315703] ohci_hcd: USB 1.1 ''Open'' Host Controller (OHCI) Driver [ 0.315833] uhci_hcd: USB Universal Host Controller Interface driver [ 0.316098] usbcore: registered new interface driver usblp [ 0.316106] Initializing USB Mass Storage driver... [ 0.316244] usbcore: registered new interface driver usb-storage [ 0.316250] USB Mass Storage support registered. [ 0.316378] usbcore: registered new interface driver libusual [ 0.317222] i8042.c: No controller found. [ 0.317364] mice: PS/2 mouse device common for all mice [ 0.317815] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 0.318805] device-mapper: ioctl: 4.17.0-ioctl (2010-03-05) initialised: dm-devel@redhat.com [ 0.322493] usbcore: registered new interface driver hiddev [ 0.322579] usbcore: registered new interface driver usbhid [ 0.322585] usbhid: USB HID core driver [ 0.323219] ALSA device list: [ 0.323226] No soundcards found. [ 0.323267] Netfilter messages via NETLINK v0.30. [ 0.323286] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 0.323633] ctnetlink v0.93: registering with nfnetlink. [ 0.323986] IPv4 over IPv4 tunneling driver [ 0.324679] ip_tables: (C) 2000-2006 Netfilter Core Team [ 0.324731] TCP cubic registered [ 0.324736] Initializing XFRM netlink socket [ 0.325295] NET: Registered protocol family 10 [ 0.327875] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 0.327953] IPv6 over IPv4 tunneling driver [ 0.328860] NET: Registered protocol family 17 [ 0.329184] registered taskstats version 1 [ 0.412690] xen-vbd: registered block device major 8 [ 0.412734] blkfront: sda1: barriers enabled [ 0.429084] md: Waiting for all devices to be available before autodetect [ 0.429095] md: If you don''t use raid, use raid=noautodetect [ 0.429380] md: Autodetecting RAID arrays. [ 0.429391] md: Scanned 0 and added 0 devices. [ 0.429398] md: autorun ... [ 0.429404] md: ... autorun DONE. [ 0.441206] EXT3-fs (sda1): error: couldn''t mount because of unsupported optional features (240) [ 0.441745] EXT2-fs (sda1): error: couldn''t mount because of unsupported optional features (240) [ 0.472731] EXT4-fs (sda1): mounted filesystem with ordered data mode [ 0.472755] VFS: Mounted root (ext4 filesystem) readonly on device 8:1. [ 0.472843] Freeing unused kernel memory: 232k freed [ 0.474467] Write protecting the kernel text: 4360k [ 0.475206] Write protecting the kernel read-only data: 2024k [ 0.509500] BUG: unable to handle kernel paging request at c1b10788 [ 0.509514] IP: [<c10120ae>] kmap_atomic_prot+0x102/0x10f [ 0.509528] *pdpt = 00000002ee24c027 *pde = 0000000298902067 *pte 00000002987a5061 [ 0.509543] Oops: 0003 [#1] SMP [ 0.509550] last sysfs file: [ 0.509555] Modules linked in: [ 0.509560] [ 0.509565] Pid: 1, comm: init Not tainted 2.6.34-xen-r3 #8 / [ 0.509572] EIP: 0061:[<c10120ae>] EFLAGS: 00010287 CPU: 0 [ 0.509579] EIP is at kmap_atomic_prot+0x102/0x10f [ 0.509585] EAX: 1a642063 EBX: f56f1000 ECX: 80000003 EDX: 80000003 [ 0.509592] ESI: 00000000 EDI: c1b10788 EBP: ecc3dde0 ESP: ecc3ddc4 [ 0.509599] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: e021 [ 0.509606] Process init (pid: 1, ti=ecc3c000 task=ecc40000 task.ti=ecc3c000) [ 0.509612] Stack: [ 0.509615] c1b107c8 80000003 1a642063 f56f1000 00000061 80000000 f56f2ff0 ecc3de40 [ 0.509630] <0> c10908a6 00000063 80000000 ecc40000 c0000000 ecc40000 ec06a000 ec0dc000 [ 0.509648] <0> c2b09e4c 00000000 582ee104 00000000 c0000000 00000000 00000000 00000000 [ 0.509666] Call Trace: [ 0.509675] [<c10908a6>] ? move_page_tables+0x203/0x44d [ 0.509683] [<c10a4893>] ? setup_arg_pages+0x15e/0x27e [ 0.509693] [<c10cd557>] ? load_elf_binary+0x35e/0xf8b [ 0.509700] [<c1087cd8>] ? page_address+0x9b/0xa4 [ 0.509709] [<c143d0ae>] ? _raw_spin_unlock_irqrestore+0xb/0x42 [ 0.509717] [<c1087cd8>] ? page_address+0x9b/0xa4 [ 0.509724] [<c107dfc9>] ? put_page+0x1f/0x71 [ 0.509731] [<c10cd1f9>] ? load_elf_binary+0x0/0xf8b [ 0.509738] [<c10a4a92>] ? search_binary_handler+0x92/0x1f3 [ 0.509746] [<c10a56ba>] ? do_execve+0x191/0x258 [ 0.509754] [<c1007bb4>] ? sys_execve+0x2c/0x4f [ 0.509761] [<c1003d1e>] ? ptregs_execve+0x12/0x18 [ 0.509768] [<c143d40d>] ? syscall_call+0x7/0xb [ 0.509777] [<c143007b>] ? tg3_init_one+0xa60/0x1309 [ 0.509785] [<c100621f>] ? kernel_execve+0x17/0x1c [ 0.509791] [<c1002043>] ? run_init_process+0x17/0x19 [ 0.509798] [<c10020cf>] ? init_post+0x8a/0xb2 [ 0.509805] [<c16b1b3f>] ? kernel_init+0x1a1/0x1ab [ 0.509812] [<c16b199e>] ? kernel_init+0x0/0x1ab [ 0.509819] [<c1003d96>] ? kernel_thread_helper+0x6/0x10 [ 0.509824] Code: f0 6a 00 e8 b3 0f 00 00 59 eb 10 8b 5d f0 31 f6 8b 4d ec 8b 55 e8 e8 22 f1 fe ff 85 c0 74 0e 8b 4d e8 03 7d e4 89 4f 04 8b 45 ec <89> 07 8b 45 f0 8d 65 f4 5b 5e 5f 5d c3 55 89 e5 ff 35 ec 2a 6f [ 0.509914] EIP: [<c10120ae>] kmap_atomic_prot+0x102/0x10f SS:ESP e021:ecc3ddc4 [ 0.509925] CR2: 00000000c1b10788 [ 0.509930] ---[ end trace 22b480750b3259ad ]--- [ 0.509937] note: init[1] exited with preempt_count 2 [ 0.509948] BUG: scheduling while atomic: init/1/0x00000002 [ 0.509953] Modules linked in: [ 0.509959] Pid: 1, comm: init Tainted: G D 2.6.34-xen-r3 #8 [ 0.509965] Call Trace: [ 0.509971] [<c101a13c>] ? __schedule_bug+0x31/0x4b [ 0.509978] [<c101a151>] __schedule_bug+0x46/0x4b [ 0.509985] [<c143bc02>] schedule+0x8a/0x54c [ 0.509992] [<c143cdf9>] rwsem_down_failed_common+0xa4/0xc7 [ 0.510002] [<c143ce5c>] rwsem_down_read_failed+0x1d/0x25 [ 0.510024] [<c143ce9f>] call_rwsem_down_read_failed+0x7/0xc [ 0.510031] [<c143c883>] ? down_read+0xd/0xf [ 0.510039] [<c104c14b>] acct_collect+0x39/0x133 [ 0.510046] [<c10257a6>] do_exit+0x19f/0x64e [ 0.510053] [<c143d0ae>] ? _raw_spin_unlock_irqrestore+0xb/0x42 [ 0.510060] [<c1023d1b>] ? kmsg_dump+0x10b/0x120 [ 0.510068] [<c143dec7>] oops_end+0xad/0xb4 [ 0.510075] [<c100d01a>] no_context+0x140/0x14a [ 0.510082] [<c100d12c>] __bad_area_nosemaphore+0x108/0x110 [ 0.510089] [<c100cb23>] ? pte_offset_kernel+0x19/0x28 [ 0.510096] [<c100d141>] bad_area_nosemaphore+0xd/0x10 [ 0.510103] [<c143f4d6>] do_page_fault+0x178/0x2af [ 0.510109] [<c143f35e>] ? do_page_fault+0x0/0x2af [ 0.510116] [<c143d6dc>] error_code+0x30/0x38 [ 0.510123] [<c10100d8>] ? kernel_map_sync_memtype+0x13/0x1f [ 0.510129] [<c143f35e>] ? do_page_fault+0x0/0x2af [ 0.510136] [<c10120ae>] ? kmap_atomic_prot+0x102/0x10f [ 0.510143] [<c10908a6>] move_page_tables+0x203/0x44d [ 0.510151] [<c10a4893>] setup_arg_pages+0x15e/0x27e [ 0.510158] [<c10cd557>] load_elf_binary+0x35e/0xf8b [ 0.510164] [<c1087cd8>] ? page_address+0x9b/0xa4 [ 0.510172] [<c143d0ae>] ? _raw_spin_unlock_irqrestore+0xb/0x42 [ 0.510179] [<c1087cd8>] ? page_address+0x9b/0xa4 [ 0.510185] [<c107dfc9>] ? put_page+0x1f/0x71 [ 0.510191] [<c10cd1f9>] ? load_elf_binary+0x0/0xf8b [ 0.510198] [<c10a4a92>] search_binary_handler+0x92/0x1f3 [ 0.510205] [<c10a56ba>] do_execve+0x191/0x258 [ 0.510212] [<c1007bb4>] sys_execve+0x2c/0x4f [ 0.510219] [<c1003d1e>] ptregs_execve+0x12/0x18 [ 0.510225] [<c143d40d>] ? syscall_call+0x7/0xb [ 0.510233] [<c143007b>] ? tg3_init_one+0xa60/0x1309 [ 0.510239] [<c100621f>] ? kernel_execve+0x17/0x1c [ 0.510246] [<c1002043>] ? run_init_process+0x17/0x19 [ 0.510252] [<c10020cf>] ? init_post+0x8a/0xb2 [ 0.510259] [<c16b1b3f>] ? kernel_init+0x1a1/0x1ab [ 0.510268] [<c16b199e>] ? kernel_init+0x0/0x1ab [ 0.510277] [<c1003d96>] ? kernel_thread_helper+0x6/0x10 Any clue? Thanks! Sylvain _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Fajar A. Nugraha
2010-Sep-27 07:06 UTC
Re: [Xen-users] Can''t boot a 32bits domU on a 64bits dom0
On Mon, Sep 27, 2010 at 1:59 PM, Sylvain CHEVALIER < sylvain.chevalier@gmail.com> wrote:> Hi, > > I am running a gentoo xen dom0, with a few gentoo domU guests and a > windows 2008 server HVM, all are 64bits versions. > > Now, I need a 32bits linux guest, so I (cross-) compiled a 32bits > kernel and prepared a 32bits minimal disk. I tried to make sure I kept > the same kernel parameters as for my 64bits guests. I am running xen > 4.0.0, PAE is not enabled and tmem is not started. > >You should probably ask on xen-devel about this, including the exact kernel version and (possibly) the .config that you use. However, my guess is that the problem comes from PAE not enabled. Try enabling it. -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Sylvain CHEVALIER
2010-Sep-27 10:47 UTC
Re: [Xen-users] Can''t boot a 32bits domU on a 64bits dom0
Thanks Fajar, I did not enable PAE because I was only assigning 2GB of RAM to the guest. I tried enabling it but I got the same result. However, if I only assign 512MB of RAM, it would boot fine. Assigning 1GB would also crash. I sill have at least 8GB of unused RAM. in my .config, I have: CONFIG_HIGHMEM4G=y CONFIG_X86_PAE=y Do you see anything else I could check? Thanks! Sylvain> > You should probably ask on xen-devel about this, including the exact kernel > version and (possibly) the .config that you use. However, my guess is that > the problem comes from PAE not enabled. Try enabling it. > -- > Fajar_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users