SLES11SP2 with kernel 3.0.42-0.7 experience crash on LIP reset or device change

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Environment

SUSE Linux Enterprise Server 11 Service Pack 2

Situation

A SLES11SP2 running kernel 3.0.42-0.7 may encounter a crash if:

A fibre channel LIP reset is executed or
The zoning is changed and the system is no longer able to access the devices
Devices are removed from the system

Messages similar to the following will appear in dmesg or /var/log/messages:

[ 187.681927] rport-3:0-7: blocked FC remote port time out: removing rport
[ 1163.732147] rport-3:0-3: blocked FC remote port time out: removing target and saving binding
[ 1163.732317] sd 3:0:3:0: [sdg] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[ 1163.732338] end_request: I/O error, dev sdg, sector 34
[ 1163.733582] sd 3:0:3:0: [sdg] Synchronizing SCSI cache
[ 1163.733629] sd 3:0:3:0: [sdg] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[ 1191.109450] BUG: soft lockup - CPU#3 stuck for 23s! [kworker/3:1:77]
[...]
[ 1191.109567] RIP: 0010:[<ffffffff81443058>] [<ffffffff81443058>] _raw_spin_unlock_irqrestore+0x8/0x10
[...]
[ 1191.111923] Call Trace:
[ 1191.115855] [<ffffffffa000f46d>] scsi_remove_target+0xbd/0xf0 [scsi_mod]
[ 1191.115879] [<ffffffff8107426c>] process_one_work+0x16c/0x350
[ 1191.115887] [<ffffffff81076dfa>] worker_thread+0x17a/0x410
[ 1191.115894] [<ffffffff8107b126>] kthread+0x96/0xa0
[ 1191.115903] [<ffffffff8144bdc4>] kernel_thread_helper+0x4/0x10
[ 1191.115907] Code: 0f c1 07 0f b7 d0 c1 e8 10 39 c2 74 07 f3 90 0f b7 17 eb f5 c3 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 ff 07 48 89 f7 57 9d
[ 1191.133823] 66 90 66 90 c3 66 90 b8 ff ff ff ff f0 0f c1 07 83 e8 01 ba
[ 1191.135713] Call Trace:
[ 1191.135727] [<ffffffffa000f46d>] scsi_remove_target+0xbd/0xf0 [scsi_mod]
[ 1191.135748] [<ffffffff8107426c>] process_one_work+0x16c/0x350
[ 1191.135754] [<ffffffff81076dfa>] worker_thread+0x17a/0x410
[ 1191.135759] [<ffffffff8107b126>] kthread+0x96/0xa0
[ 1191.135764] [<ffffffff8144bdc4>] kernel_thread_helper+0x4/0x10
[ 1219.057742] BUG: soft lockup - CPU#3 stuck for 22s! [kworker/3:1:77]

Resolution

Please update to kernel 3.0.51-0.7.9.1 or later.

Disclaimer

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