Details
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Bug
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Resolution: Fixed
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Blocker
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Lustre 2.5.1, Lustre 2.4.3
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Lustre Build: http://build.whamcloud.com/job/lustre-b2_5/39/ (2.5.1 RC1)
Distro/Arch: RHEL6.5/x86_64 (kernel version: 2.6.32-431.5.1.el6)
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3
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12976
Description
While running sanity-scrub test 14, MDS hit the following Oops:
23:43:27:Lustre: DEBUG MARKER: /usr/sbin/lctl get_param -n osd-ldiskfs.lustre-MDT0000.quota_slave.enabled 23:43:27:Lustre: DEBUG MARKER: /usr/sbin/lctl conf_param lustre.quota.mdt=ug3 23:43:27:Lustre: DEBUG MARKER: /usr/sbin/lctl conf_param lustre.quota.ost=ug3 23:43:27:BUG: unable to handle kernel NULL pointer dereference at (null) 23:43:27:IP: [<ffffffff81294840>] list_del+0x10/0xa0 23:43:27:PGD 0 23:43:27:Oops: 0000 [#1] SMP 23:43:27:last sysfs file: /sys/devices/system/cpu/online 23:43:27:CPU 0 23:43:27:Modules linked in: osp(U) mdd(U) lfsck(U) lod(U) mdt(U) mgs(U) mgc(U) fsfilt_ldiskfs(U) osd_ldiskfs(U) lquota(U) lustre(U) lov(U) osc(U) mdc(U) fid(U) fld(U) ksocklnd(U) ptlrpc(U) obdclass(U) lnet(U) lvfs(U) sha512_generic sha256_generic libcfs(U) ldiskfs(U) jbd2 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 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: obdecho] 23:43:27: 23:43:27:Pid: 16460, comm: mdt00_000 Not tainted 2.6.32-431.5.1.el6_lustre.x86_64 #1 Red Hat KVM 23:43:27:RIP: 0010:[<ffffffff81294840>] [<ffffffff81294840>] list_del+0x10/0xa0 23:43:27:RSP: 0018:ffff88007a9419c0 EFLAGS: 00010286 23:43:27:RAX: 0000000000000000 RBX: ffff88006c6a0ec0 RCX: ffff88007c35c040 23:43:27:RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88006c6a0ec0 23:43:27:RBP: ffff88007a9419d0 R08: ffff88007a940000 R09: 00000000ffffffff 23:43:27:R10: 0000000000000000 R11: 0000000000000000 R12: ffff880037c79480 23:43:27:R13: ffff88005755e180 R14: ffff88005755e208 R15: ffffffffa06251c0 23:43:27:FS: 0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000 23:43:27:CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b 23:43:27:CR2: 0000000000000000 CR3: 000000007d6af000 CR4: 00000000000006f0 23:43:27:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 23:43:27:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 23:43:27:Process mdt00_000 (pid: 16460, threadinfo ffff88007a940000, task ffff88007c8bc080) 23:43:27:Stack: 23:43:27: ffff88006c6a0ec0 ffff88006c6a0ec0 ffff88007a941a00 ffffffffa05d50de 23:43:27:<d> ffff880037c79480 ffff880037aaa1c0 ffff880057590000 ffff880037aaa268 23:43:27:<d> ffff88007a941a70 ffffffffa0c12351 0000000001020000 ffff880074c873c0 23:43:27:Call Trace: 23:43:27: [<ffffffffa05d50de>] local_oid_storage_fini+0x7e/0x280 [obdclass] 23:43:27: [<ffffffffa0c12351>] lquota_disk_find_create+0x1a1/0x2d0 [lquota] 23:43:27: [<ffffffffa0c12fcc>] lquota_disk_slv_find_create+0x21c/0x4b0 [lquota] 23:43:27: [<ffffffffa0c36510>] qmt_pool_new_conn+0x2e0/0x3a6 [lquota] 23:43:27: [<ffffffffa077c600>] ? lustre_swab_quota_body+0x0/0x50 [ptlrpc] 23:43:27: [<ffffffffa0c2ef95>] qmt_intent_policy+0x545/0x9e0 [lquota] 23:43:27: [<ffffffffa077af80>] ? lustre_swab_ldlm_intent+0x0/0x20 [ptlrpc] 23:43:27: [<ffffffffa0d83ba8>] mdt_intent_policy+0x548/0x770 [mdt] 23:43:27: [<ffffffffa072f511>] ldlm_lock_enqueue+0x361/0x8c0 [ptlrpc] 23:43:27: [<ffffffffa0758abf>] ldlm_handle_enqueue0+0x4ef/0x10a0 [ptlrpc] 23:43:27: [<ffffffffa0d83ed6>] mdt_enqueue+0x46/0xe0 [mdt] 23:43:27: [<ffffffffa0d8abca>] mdt_handle_common+0x52a/0x1470 [mdt] 23:43:27: [<ffffffffa0dc54f5>] mds_regular_handle+0x15/0x20 [mdt] 23:43:28: [<ffffffffa0788a45>] ptlrpc_server_handle_request+0x385/0xc00 [ptlrpc] 23:43:28: [<ffffffffa04963df>] ? lc_watchdog_touch+0x6f/0x170 [libcfs] 23:43:28: [<ffffffffa07800e9>] ? ptlrpc_wait_event+0xa9/0x2d0 [ptlrpc] 23:43:28: [<ffffffffa0789dad>] ptlrpc_main+0xaed/0x1740 [ptlrpc] 23:43:28: [<ffffffffa07892c0>] ? ptlrpc_main+0x0/0x1740 [ptlrpc] 23:43:28: [<ffffffff8109aee6>] kthread+0x96/0xa0 23:43:28: [<ffffffff8100c20a>] child_rip+0xa/0x20 23:43:28: [<ffffffff8109ae50>] ? kthread+0x0/0xa0 23:43:28: [<ffffffff8100c200>] ? child_rip+0x0/0x20 23:43:28:Code: 89 95 fc fe ff ff e9 ab fd ff ff 4c 8b ad e8 fe ff ff e9 db fd ff ff 90 90 90 90 55 48 89 e5 53 48 89 fb 48 83 ec 08 48 8b 47 08 <4c> 8b 00 4c 39 c7 75 39 48 8b 03 4c 8b 40 08 4c 39 c3 75 4c 48 23:43:28:RIP [<ffffffff81294840>] list_del+0x10/0xa0 23:43:28: RSP <ffff88007a9419c0> 23:43:28:CR2: 0000000000000000
Maloo report: https://maloo.whamcloud.com/test_sets/ffffb224-a49f-11e3-8fba-52540035b04c