[openib-general] OOPS: ib_mad crashery on bootup

[Tom Duffy]

This is from latest bits, r2414.

Bringing up interface ib0:  stack segment: 0000 [1] SMP
CPU 0
Modules linked in: ext3 jbd dm_mod video container button battery ac ohci_hcd tpm_nsc tpm i2c_amd756 i2c_core ib_mthca ib_ipoib ib_sa ib_mad ib_core tg3 floppy xfs exportfs mptscsih mptbase sd_mod scsi_mod
Pid: 1253, comm: ib_mad1 Not tainted 2.6.12-rc4openib
RIP: 0010:[<ffffffff880f633f>] <ffffffff880f633f>{:ib_mad:ib_mad_send_done_handler+31}
RSP: 0018:ffff81007ed71d48  EFLAGS: 00010296
RAX: 0100000000001508 RBX: ffff81007f346298 RCX: 0000000000000000
RDX: ffffc20000052001 RSI: ffff81007ed71dc8 RDI: ffff81007f3461c0
RBP: 0100000000001500 R08: ffff81007ed70000 R09: ffff81003fa69070
R10: ffff81003fc4d258 R11: 0000000000000008 R12: ffff81003f33c4b0
R13: ffff81003f33c4b0 R14: ffff81007ed71dc8 R15: ffffffff880f89a0
FS:  00002aaaaaad4e00(0000) GS:ffffffff80489000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000003a2428ebf0 CR3: 0000000000101000 CR4: 00000000000006e0
Process ib_mad1 (pid: 1253, threadinfo ffff81007ed70000, task ffff81003fa69070)
Stack: 0000000080000001 0000000000000000 ffff81003fa69070 ffff81007f346298
       ffff81007f3462a0 ffff81003fd8c778 ffff81007f3461c0 ffff81007ed71dc8
       ffffffff880f89a0 ffffffff880f8f1b
Call Trace:<ffffffff880f89a0>{:ib_mad:ib_mad_completion_handler+0}
       <ffffffff880f8f1b>{:ib_mad:ib_mad_completion_handler+1403}
       <ffffffff8016686b>{cache_free_debugcheck+715} <ffffffff80130343>{__wake_up+67}
       <ffffffff880f89a0>{:ib_mad:ib_mad_completion_handler+0}
       <ffffffff80148a6c>{worker_thread+476} <ffffffff80132260>{default_wake_function+0}
       <ffffffff8014d0b0>{keventd_create_kthread+0} <ffffffff80148890>{worker_thread+0}
       <ffffffff8014d0b0>{keventd_create_kthread+0} <ffffffff8014d329>{kthread+217}
       <ffffffff80133770>{schedule_tail+64} <ffffffff8010f57f>{child_rip+8}
       <ffffffff8014d0b0>{keventd_create_kthread+0} <ffffffff8014d250>{kthread+0}
       <ffffffff8010f577>{child_rip+0}

Code: 4c 8b 7d 20 48 89 04 24 48 89 ef 31 db e8 bf 3c 25 f8 49 8b
RIP <ffffffff880f633f>{:ib_mad:ib_mad_send_done_handler+31} RSP <ffff81007ed71d48>
 Error, some other host already uses address 192.168.0.233.

-- 
I wish we lived in the America of yesteryear that only exists in the
minds of us Republicans.
                                        -- Ned Flanders
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