[LU-7047] runtests test_1: kernel panic during umount -d -f /mnt/mds1

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Affects Version/s: Lustre 2.8.0
• Labels: 2.8.0 lustre
• 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/89052376-3a5c-11e5-bdff-5254006e85c2.

The sub-test test_1 failed with the following error:

20:58:48:Lustre: DEBUG MARKER: umount -d -f /mnt/mds1
20:58:48:BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
20:58:48:IP: [<ffffffff8152bcf4>] __mutex_lock_slowpath+0x64/0x210
20:58:48:PGD 0 
20:58:48:Oops: 0000 [#1] SMP 
20:58:48:last sysfs file: /sys/devices/system/cpu/online
20:58:48:CPU 1 
20:58:48: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]
20:58:48:
20:58:48:Pid: 6330, comm: umount Tainted: P           ---------------    2.6.32-504.30.3.el6_lustre.gc34ab89.x86_64 #1 Red Hat KVM
20:58:48:RIP: 0010:[<ffffffff8152bcf4>]  [<ffffffff8152bcf4>] __mutex_lock_slowpath+0x64/0x210
20:58:48:RSP: 0018:ffff88006a16fb58  EFLAGS: 00010203
20:58:48:RAX: 00000000ffffffff RBX: ffff88007b758678 RCX: 0000000000000000
20:58:48:RDX: 0000000000000000 RSI: ffff88007b758688 RDI: ffff88007b75867c
20:58:48:RBP: ffff88006a16fbb8 R08: 4d2d65727473756c R09: 00000000ffffffff
20:58:48:R10: 00000000ffffffff R11: 00000000ffffffff R12: ffff88006c8f5520
20:58:48:R13: ffff88007b75867c R14: ffff88006a16fb68 R15: ffff88007b758680
20:58:48:FS:  00007f923bb06740(0000) GS:ffff880002300000(0000) knlGS:0000000000000000
20:58:48:CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
20:58:48:CR2: 0000000000000008 CR3: 000000006a5d1000 CR4: 00000000000006e0
20:58:48:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
20:58:48:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
20:58:48:Process umount (pid: 6330, threadinfo ffff88006a16e000, task ffff88006c8f5520)
20:58:48:Stack:
20:58:48: ffff88006a16ffd8 ffff88007b758688 0000000100000020 ffffffffa0a41c80
20:58:48:<d> 000000006a16fbc8 ffffffffa0a7b7fa ffffc90005b10000 ffff88007b758678
20:58:48:<d> ffff8800698bf280 ffff88007b7585c0 ffff88007b758678 ffff8800698bf240
20:58:48:Call Trace:
20:58:48: [<ffffffffa0a41c80>] ? ldlm_resource_complain+0x0/0xd0 [ptlrpc]
20:58:48: [<ffffffffa0a7b7fa>] ? ptlrpc_free_committed+0x3ea/0x770 [ptlrpc]
20:58:48: [<ffffffff8152b84b>] mutex_lock+0x2b/0x50
20:58:48: [<ffffffffa0fd55f3>] mgc_process_config+0x1e3/0x1310 [mgc]
20:58:48: [<ffffffff8105bd83>] ? __wake_up+0x53/0x70
20:58:48: [<ffffffffa0859ce0>] obd_process_config.clone.0+0x90/0x2e0 [obdclass]
20:58:48: [<ffffffff8117523c>] ? __kmalloc+0x21c/0x230
20:58:48: [<ffffffffa085df22>] lustre_end_log+0x262/0x6a0 [obdclass]
20:58:48: [<ffffffffa088bf8e>] server_put_super+0x90e/0xeb0 [obdclass]
20:58:48: [<ffffffff811ac776>] ? invalidate_inodes+0xf6/0x190
20:58:48: [<ffffffff81190b7b>] generic_shutdown_super+0x5b/0xe0
20:58:48: [<ffffffff81190c66>] kill_anon_super+0x16/0x60
20:58:48: [<ffffffffa0855ae6>] lustre_kill_super+0x36/0x60 [obdclass]
20:58:48: [<ffffffff81191407>] deactivate_super+0x57/0x80
20:58:48: [<ffffffff811b10df>] mntput_no_expire+0xbf/0x110
20:58:48: [<ffffffff811b1c2b>] sys_umount+0x7b/0x3a0
20:58:48: [<ffffffff8100b0d2>] system_call_fastpath+0x16/0x1b

Please provide additional information about the failure here.

Info required for matching: runtests 1