Unexpected reboot with error RIP blk_cleanup_queue+0x12/0x150
Issue
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The system got crashed with following error messages on console, when there was some issue in one of the FC fabric:
qla2xxx [0000:21:00.1]-801c:4: Abort command issued nexus=4:1:0 -- 1 2002. qla2xxx [0000:21:00.1]-8018:4: ADAPTER RESET ISSUED nexus=4:1:0. qla2xxx [0000:21:00.1]-00af:4: Performing ISP error recovery - ha=ffff88102c3a2000. qla2xxx [0000:21:00.1]-8017:4: ADAPTER RESET SUCCEEDED nexus=4:1:0. scsi 4:0:1:0: Device offlined - not ready after error recovery rport-4:0-2: blocked FC remote port time out: removing target and saving binding BUG: unable to handle kernel NULL pointer dereference at 0000000000000320 IP: [<ffffffff81257482>] blk_cleanup_queue+0x12/0x150 PGD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/0000:04:00.7/device CPU 24 [...] Process fc_wq_4 (pid: 910, threadinfo ffff880826210000, task ffff8808261d4080) Stack: 0000000000000000 ffff88102c343800 ffff88102c343938 ffff88102c343800 <d> ffff880826211d40 ffffffff8137111d ffff88102c399860 ffff88102c343800 <d> ffff880826211d60 ffffffff81371190 ffff88102c399800 ffff88102bc55800 Call Trace: [<ffffffff8137111d>] __scsi_remove_device+0x7d/0xc0 [<ffffffff81371190>] scsi_remove_device+0x30/0x50 [<ffffffff8137127d>] __scsi_remove_target+0xad/0xe0 [<ffffffff81371320>] ? __remove_child+0x0/0x30 [<ffffffff81371343>] __remove_child+0x23/0x30 [<ffffffff8134c3bc>] device_for_each_child+0x4c/0x80 [<ffffffffa0069010>] ? fc_starget_delete+0x0/0x30 [scsi_transport_fc] [<ffffffff813712ee>] scsi_remove_target+0x3e/0x70 [<ffffffffa0069036>] fc_starget_delete+0x26/0x30 [scsi_transport_fc] [<ffffffff8108c760>] worker_thread+0x170/0x2a0 [<ffffffff810920d0>] ? autoremove_wake_function+0x0/0x40 [<ffffffff8108c5f0>] ? worker_thread+0x0/0x2a0 [<ffffffff81091d66>] kthread+0x96/0xa0 [<ffffffff8100c14a>] child_rip+0xa/0x20 [<ffffffff81091cd0>] ? kthread+0x0/0xa0 [<ffffffff8100c140>] ? child_rip+0x0/0x20 Code: 21 64 d7 00 01 00 00 00 eb c5 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 55 41 54 53 48 83 ec 08 0f 1f 44 00 00 <4c> 8b af 20 03 00 00 4c 8d a7 b8 08 00 00 48 89 fb 4c 89 e7 e8 RIP [<ffffffff81257482>] blk_cleanup_queue+0x12/0x150 RSP <ffff880826211d00> CR2: 0000000000000320
Environment
- Red Hat Enterprise Linux 6.3
- Kernel version older than
2.6.32-358.el6
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