https://bugzilla.kernel.org/show_bug.cgi?id=78941
Bug ID: 78941
Summary: xfs kernel oops at anon_vma_clone
Product: File System
Version: 2.5
Kernel Version: 3.16.0-rc2
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: XFS
Assignee: xfs-masters@xxxxxxxxxxx
Reporter: rnsastry@xxxxxxxxxxxxxxxxxx
Regression: No
[ 485.748837] XFS (loop0): log record CRC mismatch: found 0x66bd10fa, expected
0x45f36ddc.
[ 485.748958] c00000000aee0000: 00 00 00 01 00 00 00 00 69 01 00 00 2d 0b 83
ab ........i...-...
[ 485.749046] c00000000aee0010: 00 00 00 10 69 00 00 00 4e 41 52 54 2a 00 00
00 ....i...NART*...
[ 485.749273] XFS (loop0): log record CRC mismatch: found 0x8e94bd80, expected
0x8ddb2ef4.
[ 485.749364] c00000000aee0000: 00 00 00 01 00 00 00 00 69 01 00 00 dc 37 74
e0 ........i....7t.
[ 485.749457] c00000000aee0010: 00 00 00 10 69 00 00 00 4e 41 52 54 2a 00 00
00 ....i...NART*...
[ 485.749837] XFS (loop0): log record CRC mismatch: found 0x66bd10fa, expected
0x45f36ddc.
[ 485.749927] c00000000aee0000: 00 00 00 01 00 00 00 00 69 01 00 00 2d 0b 83
ab ........i...-...
[ 485.750025] c00000000aee0010: 00 00 00 10 69 00 00 00 4e 41 52 54 2a 00 00
00 ....i...NART*...
[ 485.750368] XFS (loop0): log record CRC mismatch: found 0x8e94bd80, expected
0x8ddb2ef4.
[ 485.750458] c00000000aee0000: 00 00 00 01 00 00 00 00 69 01 00 00 dc 37 74
e0 ........i....7t.
[ 485.750556] c00000000aee0010: 00 00 00 10 69 00 00 00 4e 41 52 54 2a 00 00
00 ....i...NART*...
[ 485.750654] XFS (loop0): _xfs_buf_find: Block out of range: block
0x4d0000000000, EOFS 0x8000
[ 485.751156] XFS (loop0): _xfs_buf_find: Block out of range: block
0x4d0000000000, EOFS 0x8000
[ 485.751611] XFS (loop0): _xfs_buf_find: Block out of range: block
0x4d0000000000, EOFS 0x8000
[ 485.752085] XFS (loop0): _xfs_buf_find: Block out of range: block
0x4d0000000000, EOFS 0x8000
[ 485.767275] Unable to handle kernel paging request for data at address
0x3fff8a670000
[ 485.767396] Faulting instruction address: 0xc000000000231450
[ 485.767484] Oops: Kernel access of bad area, sig: 11 [#1]
[ 485.767547] SMP NR_CPUS=2048 NUMA pSeries
[ 485.767601] Modules linked in: xfs libcrc32c rtc_generic pseries_rng
[ 485.767721] CPU: 2 PID: 1026 Comm: run_test Tainted: G W
3.16.0-rc2 #2
[ 485.767832] task: c00000007c9dae80 ti: c00000000a4e8000 task.ti:
c00000000a4e8000
[ 485.767920] NIP: c000000000231450 LR: c00000000023141c CTR: c000000000218910
[ 485.768011] REGS: c00000000a4eb990 TRAP: 0300 Tainted: G W
(3.16.0-rc2)
[ 485.768112] MSR: 8000000102009033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 48228882
XER: 20000000
[ 485.768432] CFAR: c000000000231418 DAR: 00003fff8a670000 DSISR: 0a000000
SOFTE: 1
GPR00: c00000000023141c c00000000a4ebc10 c000000000f0d3b0 00003fff8a670000
GPR04: 00003fff8a670078 00003fff8a670000 0000000000000001 0000000000004542
GPR08: 0000000000004543 0000000000000000 0000000000000000 c00000000a365e48
GPR12: c000000000218910 c00000000fe40700 c00000007a5ca9a0 c00000000a623e00
GPR16: c00000007a5ce828 c00000000a567860 c00000000a699160 c00000007a5ce850
GPR20: 0000000000000001 0000000000000001 c000000000e6de11 c00000007a5caa18
GPR24: c00000000118fc28 c00000000a36f928 c00000005b79b630 c00000007c2fe240
GPR28: c00000007a5ca9a0 c00000005b98f9b0 c00000005b79b630 00003fff8a670000
[ 485.770632] NIP [c000000000231450] anon_vma_clone+0xd0/0x1f0
[ 485.770768] LR [c00000000023141c] anon_vma_clone+0x9c/0x1f0
[ 485.770876] Call Trace:
[ 485.770943] [c00000000a4ebc10] [c00000000023141c] anon_vma_clone+0x9c/0x1f0
(unreliable)
[ 485.771141] [c00000000a4ebc90] [c0000000002315c8] anon_vma_fork+0x58/0x1a0
[ 485.771306] [c00000000a4ebce0] [c0000000000a0c04]
copy_process.part.25+0x1364/0x1760
[ 485.771497] [c00000000a4ebdc0] [c0000000000a125c] do_fork+0xec/0x490
[ 485.771666] [c00000000a4ebe30] [c00000000000a394] ppc_clone+0x8/0xc
[ 485.771826] Instruction dump:
[ 485.771913] 7c7f1b79 41c200c4 ebbb0008 ebdd0000 7fbed040 419e001c 40d200f8
387e0008
[ 485.772186] 7fdaf378 48788fc5 60000000 2e3e0000 <fb9f0000> fbbf0008 393f0010
7fe3fb78
[ 485.772460] ---[ end trace 04f978cb37fe3b55 ]---
[ 485.776290]
[ 487.776420] Kernel panic - not syncing: Fatal exception
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