[LU-1835] sanity-benchmark Oops when run with ofd + ldiskfs

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Affects Version/s: Lustre 2.3.0, Lustre 2.4.0
• Labels: USE_OFD
• Environment: https://build.whamcloud.com/job/lustre-reviews/8885/
• Severity: 3
• Assignee: WC Triage
• Reporter: Minh Diep

Description

Lustre: DEBUG MARKER: == sanity-benchmark test dbench: dbench == 09:37:59 (1346863079)
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<(null)>] (null)
PGD 7032b067 PUD 7b4c0067 PMD 0
Oops: 0010 1 SMP
last sysfs file: /sys/devices/system/cpu/possible
CPU 0
Modules linked in: osd_ldiskfs(U) fsfilt_ldiskfs(U) ldiskfs(U) lustre(U) ofd(U) ost(U) cmm(U) mdt(U) mdd(U) mds(U) mgs(U) jbd2 obdecho(U) mgc(U) lquota(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) sha512_generic sha256_generic libcfs(U) nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 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: speedstep_lib]

Pid: 21801, comm: ll_ost_io00_006 Not tainted 2.6.32-279.5.1.el6_lustre.g293c36b.x86_64 #1 Red Hat KVM
RIP: 0010:[<0000000000000000>] [<(null)>] (null)
RSP: 0018:ffff8800022031d8 EFLAGS: 00010002
RAX: ffff8800772ac880 RBX: ffff88005ec4d200 RCX: ffff880037c9e4b4
RDX: 0000000000000039 RSI: 0000000000000001 RDI: ffff8800772ac880
RBP: ffff8800022031f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff880037c9e400
R13: ffff88005ec4d200 R14: 0000000000000000 R15: ffff880037c9e400
FS: 00007fb797db3700(0000) GS:ffff880002200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000070329000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process ll_ost_io00_006 (pid: 21801, threadinfo ffff88004f12e000, task ffff88004adb6ae0)
Stack:
ffffffff811acedf ffff880002203200 ffff880070742ea0 ffff880002203200
<d> ffffffff811b147d ffff880002203260 ffffffffa0001524 ffff88005ec4d2c0
<d> ffff880000000000 ffff880000000001 000000000000001c 0000000000000000
Call Trace:
<IRQ>
[<ffffffff811acedf>] ? end_bio_bh_io_sync+0x2f/0x60
[<ffffffff811b147d>] bio_endio+0x1d/0x40
[<ffffffffa0001524>] dec_pending+0x174/0x2a0 [dm_mod]
[<ffffffffa00018ef>] clone_endio+0x9f/0xd0 [dm_mod]
[<ffffffff811b147d>] bio_endio+0x1d/0x40
[<ffffffff81254fcb>] req_bio_endio+0x9b/0xe0
[<ffffffff81256b57>] blk_update_request+0x107/0x490
[<ffffffff81256f07>] blk_update_bidi_request+0x27/0xa0
[<ffffffff81257fce>] __blk_end_request_all+0x2e/0x60
[<ffffffffa006a22e>] blk_done+0x3e/0x110 [virtio_blk]
[<ffffffffa005b1dc>] vring_interrupt+0x3c/0xd0 [virtio_ring]
[<ffffffff810db930>] handle_IRQ_event+0x60/0x170
[<ffffffff810de0be>] handle_edge_irq+0xde/0x180
[<ffffffff8100df09>] handle_irq+0x49/0xa0
[<ffffffff81505f5c>] do_IRQ+0x6c/0xf0
[<ffffffff8100ba53>] ret_from_intr+0x0/0x11
[<ffffffffa0108e41>] ? cp_interrupt+0x71/0x510 [8139cp]
[<ffffffff810db930>] ? handle_IRQ_event+0x60/0x170
[<ffffffff8102e2a9>] ? ack_apic_level+0x79/0x1b0
[<ffffffff810de1e8>] ? handle_fasteoi_irq+0x88/0xf0
[<ffffffff8100df09>] ? handle_irq+0x49/0xa0
[<ffffffff81505f5c>] ? do_IRQ+0x6c/0xf0
[<ffffffff8100ba53>] ? ret_from_intr+0x0/0x11
[<ffffffffa010a5e6>] ? cp_start_xmit+0x546/0x6c4 [8139cp]
[<ffffffff81012a80>] ? nommu_map_page+0x0/0xc0
[<ffffffff81012a80>] ? nommu_map_page+0x0/0xc0
[<ffffffff8143b53c>] ? dev_hard_start_xmit+0x2bc/0x3f0
[<ffffffff8145908a>] ? sch_direct_xmit+0x15a/0x1c0
[<ffffffff8143fce8>] ? dev_queue_xmit+0x4f8/0x6f0
[<ffffffff8147755c>] ? ip_finish_output+0x13c/0x310
[<ffffffff814777e8>] ? ip_output+0xb8/0xc0
[<ffffffff81476ae5>] ? ip_local_out+0x25/0x30
[<ffffffff81476fc0>] ? ip_queue_xmit+0x190/0x420
[<ffffffff8148bd0e>] ? tcp_transmit_skb+0x3fe/0x7b0
[<ffffffff8148d649>] ? tcp_send_ack+0xd9/0x120
[<ffffffff81484a0e>] ? __tcp_ack_snd_check+0x5e/0xa0
[<ffffffff8148a053>] ? tcp_rcv_established+0x273/0x800
[<ffffffff810538b6>] ? enqueue_task+0x66/0x80
[<ffffffff814921b3>] ? tcp_v4_do_rcv+0x2e3/0x430
[<ffffffff810600bc>] ? try_to_wake_up+0x24c/0x3e0
[<ffffffff81493a2e>] ? tcp_v4_rcv+0x4fe/0x8d0
[<ffffffff81116967>] ? mempool_free_slab+0x17/0x20
[<ffffffff81116a25>] ? mempool_free+0x95/0xa0
[<ffffffff8147174d>] ? ip_local_deliver_finish+0xdd/0x2d0
[<ffffffff814719d8>] ? ip_local_deliver+0x98/0xa0
[<ffffffff81470e9d>] ? ip_rcv_finish+0x12d/0x440
[<ffffffff8103876c>] ? kvm_clock_read+0x1c/0x20
[<ffffffff81471425>] ? ip_rcv+0x275/0x350
[<ffffffff8143ac2b>] ? __netif_receive_skb+0x49b/0x6f0
[<ffffffff8143cea8>] ? netif_receive_skb+0x58/0x60
[<ffffffffa0109f68>] ? cp_rx_poll+0x3b8/0x4f0 [8139cp]
[<ffffffff81012a80>] ? nommu_map_page+0x0/0xc0
[<ffffffff8143f603>] ? net_rx_action+0x103/0x2f0
[<ffffffff81073ec1>] ? __do_softirq+0xc1/0x1e0
[<ffffffff8100c24c>] ? call_softirq+0x1c/0x30
[<ffffffff8100de85>] ? do_softirq+0x65/0xa0
[<ffffffff81073ca5>] ? irq_exit+0x85/0x90
[<ffffffff81505f65>] ? do_IRQ+0x75/0xf0
[<ffffffff8100ba53>] ? ret_from_intr+0x0/0x11
<EOI>
[<ffffffff8127e7f5>] ? memset+0x45/0xc0
[<ffffffffa0d8febe>] ? osd_write_prep+0x35e/0x420 [osd_ldiskfs]
[<ffffffffa0d8eb0e>] ? osd_bufs_get+0x1fe/0x390 [osd_ldiskfs]
[<ffffffffa0bc98d1>] ? ofd_preprw+0x7a1/0x1060 [ofd]
[<ffffffffa0b8f81c>] ? obd_preprw+0x12c/0x3d0 [ost]
[<ffffffffa0b9698a>] ? ost_brw_write+0x87a/0x1600 [ost]
[<ffffffff8127ce76>] ? vsnprintf+0x2b6/0x5f0
[<ffffffffa06e220c>] ? lustre_msg_get_version+0x8c/0x100 [ptlrpc]
[<ffffffffa06e2368>] ? lustre_msg_check_version+0xe8/0x100 [ptlrpc]
[<ffffffffa0b9d02c>] ? ost_handle+0x360c/0x4850 [ost]
[<ffffffffa03b3561>] ? libcfs_debug_msg+0x41/0x50 [libcfs]
[<ffffffffa03af364>] ? libcfs_id2str+0x74/0xb0 [libcfs]
[<ffffffffa06f19cd>] ? ptlrpc_server_handle_request+0x40d/0xea0 [ptlrpc]
[<ffffffffa03a365e>] ? cfs_timer_arm+0xe/0x10 [libcfs]
[<ffffffffa06e8f67>] ? ptlrpc_wait_event+0xa7/0x2a0 [ptlrpc]
[<ffffffff810533f3>] ? __wake_up+0x53/0x70
[<ffffffffa06f2fb9>] ? ptlrpc_main+0xb59/0x1860 [ptlrpc]
[<ffffffffa06f2460>] ? ptlrpc_main+0x0/0x1860 [ptlrpc]
[<ffffffff8100c14a>] ? child_rip+0xa/0x20
[<ffffffffa06f2460>] ? ptlrpc_main+0x0/0x1860 [ptlrpc]
[<ffffffffa06f2460>] ? ptlrpc_main+0x0/0x1860 [ptlrpc]
[<ffffffff8100c140>] ? child_rip+0x0/0x20
Code: Bad RIP value.
RIP [<(null)>] (null)
RSP <ffff8800022031d8>
CR2: 0000000000000000
Initializing cgroup subsys cpuset

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