[LU-5446] Test timeout lustre-rsync-test test_4: NULL deref osc_sync_interpret+0x147

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.7.0
• Severity: 3
• Assignee: Emoly Liu
• Reporter: Maloo

Description

This issue was created by maloo for Nathaniel Clark <[e-mail]>

This issue relates to the following test suite run: https://testing.hpdd.intel.com/test_sets/a119340e-180a-11e4-a93e-5254006e85c2
https://testing.hpdd.intel.com/test_sets/90da9c4c-1ab0-11e4-9259-5254006e85c2

The sub-test test_4 failed with the following error:

test failed to respond and timed out

Info required for matching: lustre-rsync-test 4

Client Console Log:

15:42:52:Lustre: DEBUG MARKER: == lustre-rsync-test test 4: Replicate files created by iozone == 21:41:12 (1407015672)
15:42:52:BUG: unable to handle kernel NULL pointer dereference at (null)
15:42:52:IP: [<ffffffffa1846827>] osc_sync_interpret+0x147/0x200 [osc]
15:42:52:PGD 7c211067 PUD 7b680067 PMD 0 
15:42:52:Oops: 0002 [#1] SMP 
15:42:52:last sysfs file: /sys/devices/system/cpu/online
15:42:53:CPU 1 
15:42:53:Modules linked in: lustre(U) obdecho(U) mgc(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) ptlrpc_gss(U) ptlrpc(U) obdclass(U) ksocklnd(U) lnet(U) libcfs(U) sha512_generic sha256_generic nfsd exportfs nfs lockd fscache auth_rpcgss nfs_acl sunrpc ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa ib_mad ib_core microcode virtio_balloon i2c_piix4 i2c_core 8139too 8139cp mii ext3 jbd mbcache virtio_blk virtio_pci virtio_ring virtio pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: libcfs]
15:42:53:
15:42:53:Pid: 20333, comm: ptlrpcd_1 Not tainted 2.6.32-431.20.3.el6.x86_64 #1 Red Hat KVM
15:42:53:RIP: 0010:[<ffffffffa1846827>]  [<ffffffffa1846827>] osc_sync_interpret+0x147/0x200 [osc]
15:42:53:RSP: 0018:ffff88007d445cb0  EFLAGS: 00010282
15:42:53:RAX: ffff88007a042580 RBX: ffff8800713a4ae0 RCX: 000000000000001a
15:42:53:RDX: 0000000000000000 RSI: ffff88007a042580 RDI: 0000000000000000
15:42:53:RBP: ffff88007d445cd0 R08: 0000000000000000 R09: 0000000000000001
15:42:53:R10: ffff88007bff9800 R11: 00000000000002a0 R12: 0000000000000000
15:42:53:R13: ffff8800713a4800 R14: ffff88007d3bb000 R15: ffff8800713a48c8
15:42:53:FS:  0000000000000000(0000) GS:ffff880002300000(0000) knlGS:0000000000000000
15:42:53:CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
15:42:53:CR2: 0000000000000000 CR3: 0000000073c9a000 CR4: 00000000000006e0
15:42:53:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
15:42:53:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
15:42:53:Process ptlrpcd_1 (pid: 20333, threadinfo ffff88007d444000, task ffff88007d0b4ae0)
15:42:53:Stack:
15:42:53: ffff88005b4df7b0 ffff8800713a4800 ffff88005b4df7b0 ffff88005b4df780
15:42:53:<d> ffff88007d445d70 ffffffffa15e1531 0000000000000000 0000000000000286
15:42:53:<d> ffff88007d445d40 0000000100000001 ffff88007d445d20 ffff88007d0b5158
15:42:53:Call Trace:
15:42:53: [<ffffffffa15e1531>] ptlrpc_check_set+0x2c1/0x1b50 [ptlrpc]
15:42:53: [<ffffffffa160d5ab>] ptlrpcd_check+0x53b/0x560 [ptlrpc]
15:42:53: [<ffffffffa160dbfb>] ptlrpcd+0x33b/0x3f0 [ptlrpc]
15:42:53: [<ffffffff81061d00>] ? default_wake_function+0x0/0x20
15:42:53: [<ffffffffa160d8c0>] ? ptlrpcd+0x0/0x3f0 [ptlrpc]
15:42:53: [<ffffffff8109abf6>] kthread+0x96/0xa0
15:42:53: [<ffffffff8100c20a>] child_rip+0xa/0x20
15:42:53: [<ffffffff8109ab60>] ? kthread+0x0/0xa0
15:42:53: [<ffffffff8100c200>] ? child_rip+0x0/0x20
15:42:53:Code: ff 49 8d bd 70 03 00 00 48 c7 c6 60 f4 67 a1 e8 70 da dc ff 48 85 c0 74 1b 48 8b 13 b9 1a 00 00 00 48 89 c6 48 8b 52 40 48 89 d7 <f3> 48 a5 e9 fb fe ff ff 90 48 c7 c6 e7 3f 88 a1 48 c7 c7 20 58 

Issue Links

• is related to: LU-5261 user process is unkillable in wait_for_completion()