Details
-
Bug
-
Resolution: Fixed
-
Minor
-
Lustre 2.8.0
-
3
-
9223372036854775807
Description
Running racer on v2_7_51_0-32-g61787e1, something goes wrong in lov_init_raid0() then we oops in cl_glimpse_size0() due to a NULL lli_clob. Not necessarily causation.
[ 706.071730] LustreError: 14972:0:(lov_object.c:212:lov_init_sub()) header@ffff8800c375dc78[0x0, 2, [0x100010000:0x2:0x0] hash]{
[ 706.071732]
[ 706.074030] LustreError: 14972:0:(lov_object.c:212:lov_init_sub()) ....lovsub@ffff8800c375dd18[0]
[ 706.074031]
[ 706.075835] LustreError: 14972:0:(lov_object.c:212:lov_init_sub()) ....osc@ffff8800c37ea908id: 0x0:2 idx: 1 gen: 0 kms_valid: 1 kms 27848 rc: 0 force_sync: 0 min_xid: 0 size: 27848 mtime: 1428330720 atime: 1428330721 ctime: 1428330720 blocks: 0
[ 706.075837]
[ 706.079803] LustreError: 14972:0:(lov_object.c:212:lov_init_sub()) } header@ffff8800c375dc78
[ 706.079805]
[ 706.081495] LustreError: 14972:0:(lov_object.c:212:lov_init_sub()) stripe 0 is already owned.
[ 706.083115] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) header@ffff8800bfec7ac8[0x0, 8, [0x280000401:0x7:0x0] hash]{
[ 706.083117]
[ 706.085332] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) ....vvp@ffff8800bfec7b68(0 2) inode: ffff8800b9779018 180144002291466247/41943044 100071 1 1 ffff8800bfec7b68 [0x280000401:0x7:0x0]
[ 706.085334]
[ 706.088571] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) ....lov@ffff8800bfec85c8stripes: 1, valid, lsm{ffff8800d02a2230 0x0BD10BD0 1 1 0}:
[ 706.088573]
[ 706.091092] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) header@ffff8800c375dc78[0x0, 2, [0x100010000:0x2:0x0] hash]{
[ 706.091094]
[ 706.093361] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) ....lovsub@ffff8800c375dd18[0]
[ 706.093363]
[ 706.095173] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) ....osc@ffff8800c37ea908id: 0x0:2 idx: 1 gen: 0 kms_valid: 1 kms 27848 rc: 0 force_sync: 0 min_xid: 0 size: 27848 mtime: 1428330720 atime: 1428330721 ctime: 1428330720 blocks: 0
[ 706.095175]
[ 706.099079] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) } header@ffff8800c375dc78
[ 706.099081]
[ 706.100801] LustreError: 14972:0:(lov_object.c:213:lov_init_sub())
[ 706.100802]
[ 706.102227] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) } header@ffff8800bfec7ac8
[ 706.102228]
[ 706.103992] LustreError: 14972:0:(lov_object.c:213:lov_init_sub()) owned.
[ 706.105164] LustreError: 14972:0:(lov_object.c:214:lov_init_sub()) header@ffff8800cc490180[0x0, 1, [0x340000400:0x39:0x0]]
[ 706.105166]
[ 706.107344] LustreError: 14972:0:(lov_object.c:214:lov_init_sub()) try to own.
[ 706.594536] LustreError: 14972:0:(lcommon_cl.c:191:cl_file_inode_init()) Failure to initialize cl object [0x340000400:0x39:0x0]: -5
[ 706.596689] LustreError: 14972:0:(llite_lib.c:2347:ll_prep_inode()) new_inode -fatal: rc -5
[ 706.598419] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 706.599192] IP: [<ffffffffa1291b7e>] cl_object_top+0xe/0x150 [obdclass]
[ 706.599192] PGD 0
[ 706.599192] Oops: 0000 [#1] SMP
[ 706.601440] last sysfs file: /sys/devices/system/cpu/possible
[ 706.601440] CPU 1
...
[ 706.614418]
[ 706.614418] Pid: 15458, comm: ll_agl_14972 Not tainted 2.6.32-431.29.2.el6.lustre.x86_64 #1 Bochs Bochs
[ 706.614418] RIP: 0010:[<ffffffffa1291b7e>] [<ffffffffa1291b7e>] cl_object_top+0xe/0x150 [obdclass]
[ 706.614418] RSP: 0018:ffff8800c4ab9d10 EFLAGS: 00010282
[ 706.614418] RAX: ffff8800b9f248c8 RBX: ffff880100b85ed0 RCX: 0000000000000000
[ 706.614418] RDX: ffff8800baddf978 RSI: ffffffffa12e5f80 RDI: 0000000000000000
[ 706.614418] RBP: ffff8800c4ab9d20 R08: 0000000000000001 R09: 0000000000000001
[ 706.614418] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801196f50c0
[ 706.614418] R13: 0000000000000005 R14: 0000000000000000 R15: ffff8800b9f248c8
[ 706.614418] FS: 0000000000000000(0000) GS:ffff88002c200000(0000) knlGS:00000000000000\
00
[ 706.614418] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 706.614418] CR2: 0000000000000000 CR3: 000000011b9b6000 CR4: 00000000000006e0
[ 706.614418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 706.614418] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 706.614418] Process ll_agl_14972 (pid: 15458, threadinfo ffff8800c4ab8000, task ffff8800c0ee2480)
[ 706.614418] Stack:
[ 706.614418] ffff8800c4ab9d20 ffff880100b85ed0 ffff8800c4ab9d60 ffffffffa129bfad
[ 706.614418] <d> ffff8800c4ab9d60 ffff8800c4ab9d8c ffff8800bfe6e480 0000000000000001
[ 706.614418] <d> 0000000000000001 0000000000000001 ffff8800c4ab9db0 ffffffffa0c0bec1
[ 706.614418] Call Trace:
[ 706.614418] [<ffffffffa129bfad>] cl_io_init+0x3d/0xe0 [obdclass]
[ 706.614418] [<ffffffffa0c0bec1>] cl_glimpse_size0+0x91/0x1d0 [lustre]
[ 706.614418] [<ffffffffa0c0493a>] ll_agl_trigger+0x12a/0x4c0 [lustre]
[ 706.614418] [<ffffffffa0c05f77>] ll_agl_thread+0x187/0x4a0 [lustre]
[ 706.614418] [<ffffffff81061d90>] ? default_wake_function+0x0/0x20
[ 706.614418] [<ffffffffa0c05df0>] ? ll_agl_thread+0x0/0x4a0 [lustre]
[ 706.614418] [<ffffffff8109e856>] kthread+0x96/0xa0
[ 706.614418] [<ffffffff8100c30a>] child_rip+0xa/0x20
[ 706.614418] [<ffffffff815562e0>] ? _spin_unlock_irq+0x30/0x40
[ 706.614418] [<ffffffff8100bb10>] ? restore_args+0x0/0x30
[ 706.614418] [<ffffffff8109e7c0>] ? kthread+0x0/0xa0
[ 706.614418] [<ffffffff8100c300>] ? child_rip+0x0/0x20
[ 706.614418] Code: 05 00 00 00 04 00 e8 62 76 ee ff 48 c7 c7 60 68 2e a1 e8 06 b3 ed ff 66 0f 1f 44 00 00 55 48 89 e5 53 48 83 ec 08 0f 1f 44 00 00 <48> 8b 07 0f 1f 80 00 00 00 00 48 89 c2 48 8b 40 50 48 85 c0 75
[ 706.614418] RIP [<ffffffffa1291b7e>] cl_object_top+0xe/0x150 [obdclass]
[ 706.614418] RSP <ffff8800c4ab9d10>
[ 706.614418] CR2: 0000000000000000