[Xen-devel] Re: kernel BUG at arch/x86/xen/mmu.c:1860!

[tjaouen <tjaouen@xxxxxxx>]

Same issue:

Backup DomU with lvsnapshot ... 

Linux xencave 2.6.32-5-xen-amd64 #1 SMP Fri Dec 10 17:41:50 UTC 2010 x86_64
GNU/Linux

Jan 13 04:01:51 xencave kernel: [223872.758977] ------------[ cut here
]------------
Jan 13 04:01:51 xencave kernel: [223872.759006] kernel BUG at
/build/buildd-linux-2.6_2.6.32-29-amd64-xcs37n/linux-2.6-2.6.32/debian/build/source_amd64_xen/arch/x86/xen/mmu.c:1649!
Jan 13 04:01:51 xencave kernel: [223872.759047] invalid opcode: 0000 [#2]
SMP 
Jan 13 04:01:51 xencave kernel: [223872.759076] last sysfs file:
/sys/devices/virtual/block/dm-30/dm/suspended
Jan 13 04:01:51 xencave kernel: [223872.759099] CPU 1 
Jan 13 04:01:51 xencave kernel: [223872.759121] Modules linked in:
dm_snapshot nfs lockd fscache nfs_acl auth_rpcgss sunrpc nf_conntrack_ipv4
nf_defrag_ipv4 xt_state nf_conntrack xt_physdev iptable_filter ip_tables
x_tables xen_evtchn xenfs bridge stp coretemp it87 hwmon_vid fuse loop i915
drm_kms_helper processor acpi_processor drm i2c_algo_bit button video
snd_pcsp rng_core evdev i2c_i801 serio_raw snd_pcm snd_timer output i2c_core
snd soundcore snd_page_alloc usbhid hid ext3 jbd mbcache dm_mod raid1 md_mod
sg sr_mod cdrom sd_mod crc_t10dif ata_generic ata_piix libata scsi_mod
ehci_hcd uhci_hcd r8169 mii usbcore nls_base thermal fan thermal_sys [last
unloaded: scsi_wait_scan]
Jan 13 04:01:51 xencave kernel: [223872.759599] Pid: 9244, comm: dmsetup_env
Tainted: G      D    2.6.32-5-xen-amd64 #1 945GM-S2
Jan 13 04:01:51 xencave kernel: [223872.759636] RIP:
e030:[<ffffffff8100c694>]  [<ffffffff8100c694>] pin_pagetable_pfn+0x2d/0x36
Jan 13 04:01:51 xencave kernel: [223872.759683] RSP: e02b:ffff88001d695e08 
EFLAGS: 00010282
Jan 13 04:01:51 xencave kernel: [223872.759707] RAX: 00000000ffffffea RBX:
000000000001e9df RCX: 0000000000000001
Jan 13 04:01:51 xencave kernel: [223872.759742] RDX: 0000000000000000 RSI:
0000000000000001 RDI: ffff88001d695e08
Jan 13 04:01:51 xencave kernel: [223872.759777] RBP: ffff88001f2b4700 R08:
0000000000000ef8 R09: ffffea00006b28c8
Jan 13 04:01:51 xencave kernel: [223872.759812] R10: 0000000000007ff0 R11:
ffffea00005858c8 R12: ffff88001a3ee010
Jan 13 04:01:51 xencave kernel: [223872.759846] R13: ffff8800020a8000 R14:
ffff880002089530 R15: ffff88001a3ee010
Jan 13 04:01:51 xencave kernel: [223872.759887] FS:  00007f81d5709700(0000)
GS:ffff88000308c000(0000) knlGS:0000000000000000
Jan 13 04:01:51 xencave kernel: [223872.759925] CS:  e033 DS: 0000 ES: 0000
CR0: 000000008005003b
Jan 13 04:01:51 xencave kernel: [223872.759948] CR2: 000000000043c56a CR3:
000000001a38c000 CR4: 0000000000002660
Jan 13 04:01:51 xencave kernel: [223872.759985] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jan 13 04:01:51 xencave kernel: [223872.760022] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jan 13 04:01:51 xencave kernel: [223872.760057] Process dmsetup_env (pid:
9244, threadinfo ffff88001d694000, task ffff880002089530)
Jan 13 04:01:51 xencave kernel: [223872.760094] Stack:
Jan 13 04:01:51 xencave kernel: [223872.760112]  0000000000000000
000000000009e90d ffffea00006b28c8 000000000001e9df
Jan 13 04:01:51 xencave kernel: [223872.760149] <0> ffff88001f2b4700
ffffffff810cd4a1 ffff88001a3dc000 000000000043c56a
Jan 13 04:01:51 xencave kernel: [223872.760203] <0> 000000001a3dc000
ffffffff810cb34c ffff8800020a8000 000000000043c56a
Jan 13 04:01:51 xencave kernel: [223872.760270] Call Trace:
Jan 13 04:01:51 xencave kernel: [223872.760295]  [<ffffffff810cd4a1>] ?
__pte_alloc+0x6b/0xc6
Jan 13 04:01:51 xencave kernel: [223872.760320]  [<ffffffff810cb34c>] ?
pmd_alloc+0x28/0x5b
Jan 13 04:01:51 xencave kernel: [223872.760344]  [<ffffffff810cd5ca>] ?
handle_mm_fault+0xce/0x80f
Jan 13 04:01:51 xencave kernel: [223872.760372]  [<ffffffff8130cc35>] ?
page_fault+0x25/0x30
Jan 13 04:01:51 xencave kernel: [223872.760397]  [<ffffffff8130ed96>] ?
do_page_fault+0x2e0/0x2fc
Jan 13 04:01:51 xencave kernel: [223872.760422]  [<ffffffff8130cc35>] ?
page_fault+0x25/0x30
Jan 13 04:01:51 xencave kernel: [223872.760443] Code: ec 28 89 3c 24 48 89
f7 e8 a2 fd ff ff 48 89 e7 48 89 44 24 08 be 01 00 00 00 31 d2 41 ba f0 7f
00 00 e8 b0 cc ff ff 85 c0 74 04 <0f> 0b eb fe 48 83 c4 28 c3 55 49 89 ca 48
89 d5 40 88 f1 48 89 
Jan 13 04:01:51 xencave kernel: [223872.760761] RIP  [<ffffffff8100c694>]
pin_pagetable_pfn+0x2d/0x36
Jan 13 04:01:51 xencave kernel: [223872.760790]  RSP <ffff88001d695e08>
Jan 13 04:01:51 xencave kernel: [223872.761008] ---[ end trace
b143b5bdb343412e ]---


help!
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