[LU-6845] conf-sanity test_30b: kernel panic in dt_txn_hook_commit+0x30 during umount

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Affects Version/s: Lustre 2.8.0
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

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

This issue relates to the following test suite run: https://testing.hpdd.intel.com/test_sets/7494beaa-29c3-11e5-a9c5-5254006e85c2.

The sub-test test_30b failed with the following error:

21:20:54:Lustre: DEBUG MARKER: umount -d -f /mnt/mds1
21:20:54:general protection fault: 0000 [#1] SMP 
21:20:54:last sysfs file: /sys/devices/system/cpu/online
21:20:54:CPU 1 
21:20:54:Modules linked in: osp(U) mdd(U) lod(U) mdt(U) lfsck(U) mgs(U) mgc(U) osd_zfs(U) lquota(U) lustre(U) lov(U) mdc(U) fid(U) lmv(U) fld(U) ksocklnd(U) ptlrpc(U) obdclass(U) lnet(U) sha512_generic libcfs(U) 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_sa ib_mad ib_core ib_addr ipv6 zfs(P)(U) zcommon(P)(U) znvpair(P)(U) spl(U) zlib_deflate zavl(P)(U) zunicode(P)(U) microcode virtio_balloon 8139too 8139cp mii i2c_piix4 i2c_core 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: speedstep_lib]
21:20:54:
21:20:54:Pid: 19069, comm: tx_commit_cb/1 Tainted: P           ---------------    2.6.32-504.23.4.el6_lustre.g2382eb0.x86_64 #1 Red Hat KVM
21:20:54:RIP: 0010:[<ffffffffa0868fe0>]  [<ffffffffa0868fe0>] dt_txn_hook_commit+0x30/0x60 [obdclass]
21:20:54:RSP: 0018:ffff88005b621d80  EFLAGS: 00010207
21:20:54:RAX: 5a5a5a5a5a5a5a5a RBX: 5a5a5a5a5a5a5a32 RCX: ffff880072966000
21:20:54:RDX: ffff880072966048 RSI: ffffffffa12fd6a0 RDI: ffff88006d4cf240
21:20:54:RBP: ffff88005b621d90 R08: 20737365636f7250 R09: 0a64657265746e65
21:20:54:R10: 20737365636f7250 R11: 0a64657265746e65 R12: ffff88006ed46200
21:20:54:R13: ffff880072966000 R14: 0000000000000000 R15: ffff88006ed46250
21:20:54:FS:  0000000000000000(0000) GS:ffff880002300000(0000) knlGS:0000000000000000
21:20:54:CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
21:20:54:CR2: 00007f4962319000 CR3: 0000000001a85000 CR4: 00000000000006e0
21:20:54:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
21:20:54:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
21:20:54:Process tx_commit_cb/1 (pid: 19069, threadinfo ffff88005b620000, task ffff8800794f2040)
21:20:54:Stack:
21:20:54: ffff88006ed46200 0000000000000000 ffff88005b621dd0 ffffffffa0f7204c
21:20:54:<d> ffff8800794f25f8 ffff88006f216da0 ffff8800721ce3c0 ffff8800721ce3d0
21:20:54:<d> 0000000000000000 ffff88007219ab48 ffff88005b621e00 ffffffffa021386d
21:20:54:Call Trace:
21:20:54: [<ffffffffa0f7204c>] osd_trans_commit_cb+0x17c/0x4c0 [osd_zfs]
21:20:54: [<ffffffffa021386d>] dmu_tx_do_callbacks+0x3d/0x60 [zfs]
21:20:54: [<ffffffffa0255ab8>] txg_do_callbacks+0x18/0x40 [zfs]
21:20:54: [<ffffffffa019a727>] taskq_thread+0x1e7/0x3f0 [spl]
21:20:54: [<ffffffff81064be0>] ? default_wake_function+0x0/0x20
21:20:54: [<ffffffffa019a540>] ? taskq_thread+0x0/0x3f0 [spl]
21:20:54: [<ffffffff8109e78e>] kthread+0x9e/0xc0
21:20:54: [<ffffffff8100c28a>] child_rip+0xa/0x20
21:20:54: [<ffffffff8109e6f0>] ? kthread+0x0/0xc0
21:20:54: [<ffffffff8100c280>] ? child_rip+0x0/0x20
21:20:54:Code: 54 53 0f 1f 44 00 00 f6 47 48 02 49 89 fc 75 42 48 8b 0f 48 8b 41 48 48 8d 51 48 48 39 d0 48 8d 58 d8 74 2e 0f 1f 80 00 00 00 00 <48> 8b 43 10 48 85 c0 74 0d 48 8b 73 18 4c 89 e7 ff d0 49 8b 0c 
21:20:54:RIP  [<ffffffffa0868fe0>] dt_txn_hook_commit+0x30/0x60 [obdclass]
21:20:54: RSP <ffff88005b621d80>
21:20:54:Initializing cgroup subsys cpuset
21:20:54:Initializing cgroup subsys cpu

Please provide additional information about the failure here.

Info required for matching: conf-sanity 30b

Issue Links

• duplicates: LU-6814 conf-sanity test 23b hangs on unmount
• is duplicated by: LU-6814 conf-sanity test 23b hangs on unmount