[ofa-general] second soft lockup in ipoib

[Or Gerlitz]

and now also this lockup which seems quite similar to the previous one

ipoib         D ffff8102276c3e78     0  2840    105          2976  2828 (L-TLB)
 ffff81021dfa1d90 0000000000000046 ffff81021e28ea60 ffff81021e28eb80
 000000000000000a ffff8102236d1100 ffff810217435080 0000014f039ad756
 0000000000002722 ffff8102236d12e8 ffff810200000000 ffff81021e28ea00
Call Trace:
 [<ffffffff8003d03b>] lock_timer_base+0x1b/0x3c
 [<ffffffff88443ea2>] :ib_ipoib:ipoib_cm_tx_reap+0x0/0x21b
 [<ffffffff800610e7>] wait_for_completion+0x79/0xa2
 [<ffffffff800884ac>] default_wake_function+0x0/0xe
 [<ffffffff8842b18f>] :ib_cm:cm_enter_timewait+0xa5/0xb5
 [<ffffffff8842be30>] :ib_cm:cm_destroy_id+0x1cf/0x209
 [<ffffffff88443f20>] :ib_ipoib:ipoib_cm_tx_reap+0x7e/0x21b
 [<ffffffff8004b2ab>] run_workqueue+0x94/0xe5
 [<ffffffff80047c09>] worker_thread+0x0/0x122
 [<ffffffff8009b283>] keventd_create_kthread+0x0/0x61
 [<ffffffff80047cf9>] worker_thread+0xf0/0x122
--
ifconfig      D ffff8102258c0610     0  5739   5612                     (NOTLB)
 ffff8102120e1d68 0000000000000082 0000000c00000006 ffff81022fcab080
 0000000000000007 ffff81022fffa040 ffff81022fcab080 00000152e87ae3f5
 00000000000010a8 ffff81022fffa228 0000003000000006 ffff8102120e1dc8
Call Trace:
 [<ffffffff80098556>] flush_cpu_workqueue+0x7f/0xad
 [<ffffffff8009b446>] autoremove_wake_function+0x0/0x2e
 [<ffffffff80098592>] flush_workqueue+0xe/0x85
 [<ffffffff8843d21e>] :ib_ipoib:ipoib_stop+0x4f/0xdd
 [<ffffffff80210a21>] dev_close+0x53/0x72
 [<ffffffff8021019a>] dev_change_flags+0x5a/0x119
 [<ffffffff80242772>] devinet_ioctl+0x235/0x59c
 [<ffffffff80208a48>] sock_ioctl+0x1c1/0x1e5
 [<ffffffff8003fc22>] do_ioctl+0x21/0x6b
 [<ffffffff8002fc67>] vfs_ioctl+0x248/0x261
 [<ffffffff8004a242>] sys_ioctl+0x59/0x78
--