[LU-1834] sanity test 26a: 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

Run b2_3 with USE_OFD=yes, on ldiskfs

Lustre: DEBUG MARKER: /usr/sbin/lctl mark == sanity test 26a: multiple component symlink ========================= 06:50:47 (1346853047)^M
Lustre: DEBUG MARKER: == sanity test 26a: multiple component symlink ========================= 06:50:47 (1346853047)^M
Lustre: DEBUG MARKER: lctl set_param -n fail_loc=0 2>/dev/null || true^M
Lustre: DEBUG MARKER: rc=$([ -f /proc/sys/lnet/catastrophe ] && echo $(< /proc/sys/lnet/catastrophe) || echo 0);^M
if [ $rc -ne 0 ]; then echo $(hostname): $rc; fi^M
exit $rc;^M
BUG: unable to handle kernel NULL pointer dereference at 0000000000000010^M
IP: [<ffffffff81278a5b>] rb_insert_color+0x5b/0x160^M
PGD 6fd8d067 PUD 70a71067 PMD 0 ^M
Oops: 0000 1 SMP ^M
last sysfs file: /sys/devices/system/cpu/possible^M
CPU 0 ^M
Modules linked in: nfs fscache 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]^M
^M
Pid: 0, comm: swapper Not tainted 2.6.32-279.5.1.el6_lustre.g293c36b.x86_64 #1 Red Hat KVM^M
RIP: 0010:[<ffffffff81278a5b>] [<ffffffff81278a5b>] rb_insert_color+0x5b/0x160^M
RSP: 0018:ffff880002203550 EFLAGS: 00010046^M
RAX: 0000000000000000 RBX: ffff8800022116a0 RCX: ffff88004ceaba68^M
RDX: ffff88004ceaba70 RSI: ffff8800022115f8 RDI: ffff8800022116a0^M
RBP: ffff880002203580 R08: 00000000000f4240 R09: 0000014e33cab700^M
R10: 0000000000000010 R11: 0000000000000000 R12: 0000000000000000^M
R13: ffff88004ceaba68 R14: ffff8800022116a0 R15: 0000000000000000^M
FS: 0000000000000000(0000) GS:ffff880002200000(0000) knlGS:0000000000000000^M
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b^M
CR2: 0000000000000010 CR3: 000000007d199000 CR4: 00000000000006f0^M
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000^M
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400^M
Process swapper (pid: 0, threadinfo ffffffff81a00000, task ffffffff81a8d020)^M
Stack:^M
ffff8800022115f8 ffff8800022116a0 0000000000000000 ffff8800022115a0^M
<d> 0000000000000001 0000000000000000 ffff8800022035b0 ffffffff81096112^M
<d> 000000000000059b ffff8800022116a0 ffff8800022116a0 ffff8800022115e8^M
Call Trace:^M
<IRQ> ^M
[<ffffffff81096112>] enqueue_hrtimer+0x82/0xd0^M
[<ffffffff81096880>] __run_hrtimer+0xc0/0x1a0^M
[<ffffffff81038779>] ? kvm_clock_get_cycles+0x9/0x10^M
[<ffffffff81096bf6>] hrtimer_interrupt+0xe6/0x250^M
[<ffffffff8150604b>] smp_apic_timer_interrupt+0x6b/0x9b^M
[<ffffffff8100bc13>] apic_timer_interrupt+0x13/0x20^M
[<ffffffffa010a5e6>] ? cp_start_xmit+0x546/0x6c4 [8139cp]^M
[<ffffffff81012a80>] ? nommu_map_page+0x0/0xc0^M
[<ffffffff81012a80>] ? nommu_map_page+0x0/0xc0^M
[<ffffffff8143b53c>] ? dev_hard_start_xmit+0x2bc/0x3f0^M
[<ffffffff8145908a>] ? sch_direct_xmit+0x15a/0x1c0^M
[<ffffffff8143fce8>] ? dev_queue_xmit+0x4f8/0x6f0^M
[<ffffffff8147755c>] ? ip_finish_output+0x13c/0x310^M
[<ffffffff814777e8>] ? ip_output+0xb8/0xc0^M
[<ffffffff81476ae5>] ? ip_local_out+0x25/0x30^M
[<ffffffff81476fc0>] ? ip_queue_xmit+0x190/0x420^M

[<ffffffff810920e6>] ? autoremove_wake_function+0x16/0x40^M
[<ffffffff8104e309>] ? __wake_up_common+0x59/0x90^M
[<ffffffff8148bd0e>] ? tcp_transmit_skb+0x3fe/0x7b0^M
[<ffffffff8148d649>] ? tcp_send_ack+0xd9/0x120^M
[<ffffffff81484a0e>] ? __tcp_ack_snd_check+0x5e/0xa0^M
[<ffffffff814865c3>] ? tcp_data_snd_check+0x33/0x100^M
[<ffffffff8148a16d>] ? tcp_rcv_established+0x38d/0x800^M
[<ffffffff814921b3>] ? tcp_v4_do_rcv+0x2e3/0x430^M
[<ffffffff81493a2e>] ? tcp_v4_rcv+0x4fe/0x8d0^M
[<ffffffff8147174d>] ? ip_local_deliver_finish+0xdd/0x2d0^M
[<ffffffff814719d8>] ? ip_local_deliver+0x98/0xa0^M
[<ffffffff81470e9d>] ? ip_rcv_finish+0x12d/0x440^M
[<ffffffff8103876c>] ? kvm_clock_read+0x1c/0x20^M
[<ffffffff81471425>] ? ip_rcv+0x275/0x350^M
[<ffffffff8143ac2b>] ? __netif_receive_skb+0x49b/0x6f0^M
[<ffffffff8143cea8>] ? netif_receive_skb+0x58/0x60^M
[<ffffffffa0109f68>] ? cp_rx_poll+0x3b8/0x4f0 [8139cp]^M
[<ffffffff81012a80>] ? nommu_map_page+0x0/0xc0^M
[<ffffffff8143f603>] ? net_rx_action+0x103/0x2f0^M
[<ffffffff81073ec1>] ? __do_softirq+0xc1/0x1e0^M
[<ffffffff8100c24c>] ? call_softirq+0x1c/0x30^M
[<ffffffff8100de85>] ? do_softirq+0x65/0xa0^M
[<ffffffff81073ca5>] ? irq_exit+0x85/0x90^M
[<ffffffff81505f65>] ? do_IRQ+0x75/0xf0^M
[<ffffffff8100ba53>] ? ret_from_intr+0x0/0x11^M
<EOI> ^M
[<ffffffff810387cb>] ? native_safe_halt+0xb/0x10^M
[<ffffffff810149cd>] ? default_idle+0x4d/0xb0^M
[<ffffffff81009e06>] ? cpu_idle+0xb6/0x110^M
[<ffffffff814e47aa>] ? rest_init+0x7a/0x80^M
[<ffffffff81c21f7b>] ? start_kernel+0x424/0x430^M
[<ffffffff81c2133a>] ? x86_64_start_reservations+0x125/0x129^M
[<ffffffff81c21438>] ? x86_64_start_kernel+0xfa/0x109^M
Code: 8b 2c 24 49 83 e5 fe 4d 89 2c 24 49 89 de 49 83 e5 fc 0f 84 98 00 00 00 49 8b 45 00 a8 01 0f 85 8c 00 00 00 49 89 c4 49 83 e4 fc <49> 8b 5c 24 10 4c 39 eb 74 43 48 85 db 74 08 48 8b 13 f6 c2 01 ^M
RIP [<ffffffff81278a5b>] rb_insert_color+0x5b/0x160^M
RSP <ffff880002203550>^M
CR2: 0000000000000010^M

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