[Xen-bugs] Xen 4.0.1 Kernel Bug

[nikolanikov@xxxxxxx]

[229995.580221] ------------[ cut here ]------------
[229995.580419] kernel BUG at /root/xen-4.0.1/linux-2.6-pvops.git/arch/x86/xen/mmu.c:1885!
[229995.580624] invalid opcode: 0000 [#1] SMP 
[229995.580749] last sysfs file: /sys/devices/virtual/block/dm-49/removable
[229995.580858] CPU 4 
[229995.580966] Modules linked in: iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsd [last unloaded: scsi_wait_scan]
[229995.581320] Pid: 22551, comm: lvcreate Not tainted 2.6.32.25 #6 S5520HC
[229995.581442] RIP: e030:[

] [] pin_pagetable_pfn+0x35/0x70
[229995.581657] RSP: e02b:ffff8808d7093c18 EFLAGS: 00010282
[229995.581767] RAX: 00000000ffffffea RBX: 00000000005fcf6e RCX: 00000000000001e7
[229995.581956] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8808d7093c18
[229995.582162] RBP: ffff8808d7093c38 R08: 0000000000000b70 R09: 00003ffffffff000
[229995.582437] R10: 0000000000007ff0 R11: 0000000000000040 R12: 0000000000000003
[229995.582625] R13: ffff8809ce149200 R14: ffff880202741078 R15: 00000000005fcf6e
[229995.582828] FS: 00007f0218f77780(0000) GS:ffff8800280c5000(0000) knlGS:0000000000000000
[229995.583032] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[229995.583153] CR2: 00007f80c166fb80 CR3: 00000001fd1b1000 CR4: 0000000000002660
[229995.583434] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[229995.583695] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[229995.583889] Process lvcreate (pid: 22551, threadinfo ffff8808d7092000, task ffff8809ce1b8790)
[229995.584157] Stack:
[229995.584251] ffff880800000000 000000000069f8bb 0000000100000000 00000000005fcf6e
[229995.584394] <0> ffff8808d7093c58 ffffffff810420d9 ffffea0014f56010 ffff8809ce149180
[229995.584693] <0> ffff8808d7093c68 ffffffff8104211e ffff8808d7093ca8 ffffffff81131c17
[229995.585012] Call Trace:
[229995.585117] [] xen_alloc_ptpage+0x89/0xa0
[229995.585230] [] xen_alloc_pte+0xe/0x10
[229995.585364] [] __pte_alloc+0x87/0x130
[229995.585475] [] handle_mm_fault+0x350/0xb70
[229995.585654] [] ? follow_page+0x177/0x420
[229995.585770] [] __get_user_pages+0x1d1/0x590
[229995.585886] [] ? add_page_to_unevictable_list+0x99/0xc0
[229995.586012] [] __mlock_vma_pages_range+0xbe/0x1b0
[229995.586137] [] ? pvclock_clocksource_read+0x4e/0xc0
[229995.586260] [] mlock_fixup+0x18f/0x220
[229995.586463] [] do_mlockall+0x87/0xa0
[229995.586645] [] sys_mlockall+0xaf/0xe0
[229995.586754] [] system_call_fastpath+0x16/0x1b
[229995.586862] Code: 20 89 7d e0 80 3d 1d 13 d1 00 00 74 31 48 89 55 e8 48 8d 7d e0 be 01 00 00 00 31 d2 41 ba f0 7f 00 00 e8 df 73 fc ff 85 c0 74 0b <0f> 0b eb fe 0f 1f 80 00 00 00 00 c9 c3 66 0f 1f 44 00 00 48 89
[229995.587924] RIP [] pin_pagetable_pfn+0x35/0x70
[229995.588043] RSP
[229995.588587] ---[ end trace f9e4617efaa82582 ]---



TheServer:/proc/22551# cat status
Name: lvcreate
State: D (disk sleep)
Tgid: 22551
Pid: 22551
PPid: 21997
TracerPid: 0
Uid: 0 0 0 0
Gid: 0 0 0 0
FDSize: 64
Groups: 0
VmPeak: 26072 kB
VmSize: 16056 kB
VmLck: 1156 kB
VmHWM: 13796 kB
VmRSS: 3728 kB
VmData: 628 kB
VmStk: 276 kB
VmExe: 568 kB
VmLib: 2184 kB
VmPTE: 56 kB
Threads: 1
SigQ: 24/268493
SigPnd: 0000000000000000
ShdPnd: 0000000000000100
SigBlk: fffffffe7ffbfeff
SigIgn: 0000000000001000
SigCgt: 0000000000000000
CapInh: 0000000000000000
CapPrm: ffffffffffffffff
CapEff: ffffffffffffffff
CapBnd: ffffffffffffffff
Cpus_allowed: ff
Cpus_allowed_list: 0-7
Mems_allowed: 1
Mems_allowed_list: 0
voluntary_ctxt_switches: 125
nonvoluntary_ctxt_switches: 43


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