[ofa-general] SDP kernel Oops.

[Paul Nowoczynski]

Hi,
I am wondering if someone could shed some light on this problem?  I'm 
trying use SDP on a kernel socket with limited success.  Can someone 
with working knowledge of SDP please give me some advice?  I'm running 
OFED-1.1.  I've looked at diff's for 1.2 but didn't notice anything that 
looked pertinent to this problem.  The bug appears when a second socket 
instance is invoked.  My feeling is that the problem is related to 
teardown..

thanks,
paul

----------- [cut here ] --------- [please bite here ] ---------
Jul 30 12:39:52 Kernel BUG at sdp_cma:372
invalid operand: 0000 [1] SMP
CPU 0
Modules linked in: ksocklnd ptlrpc obdclass lvfs lnet libcfs ib_sdp 
rdma_cm ib_addr iptable_filter ip_tables e1000 ib_srp ib_cm ib_ipoib 
ib_sa ib_uverbs ib_umad ib_mthca ib_mad ib_core md forcedeth
Pid: 2578, comm: ib_cm/0 Not tainted 
2.6.9-42.0.8.EL_lustre.1.4.9.1customOBost_0.4
RIP: 0010:[<ffffffffa00b253a>] 
<ffffffffa00b253a>{:ib_sdp:sdp_connect_handler+186}
RSP: 0018:000001015721bc08  EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000010150467040 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000010150467028 RDI: ffffffffa00b8b40
RBP: ffffffffa00b86c0 R08: 00000101542faef8 R09: 00000101542faf08
R10: 00000000ffffffff R11: 0000000000000000 R12: 0000010150467740
R13: 000001015721bd08 R14: 0000000000000000 R15: 0000010150496c00
FS:  0000002a9589db00(0000) GS:ffffffff805a30c0(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00000000005b3430 CR3: 0000000000101000 CR4: 00000000000006e0
Process ib_cm/0 (pid: 2578, threadinfo 000001015721a000, task 
00000101567a1030)
Stack: 000001015721bd08 00000101504679a0 0000010150467740 0000010150496c00
       000001015721bd08 0000000000000000 0000000000000000 ffffffffa00b2e80
       0000000000000000 0000000000000000
Call Trace:<ffffffffa00b2e80>{:ib_sdp:sdp_cma_handler+896} 
<ffffffffa0015a3f>{:ib_core:ib_find_cached_gid+239}
       <ffffffffa00a869e>{:rdma_cm:cma_notify_user+30} 
<ffffffffa00a8fd3>{:rdma_cm:cma_req_handler+851}
       <ffffffffa00713da>{:ib_cm:cm_process_work+26} 
<ffffffffa0071dc3>{:ib_cm:cm_req_handler+2307}
       <ffffffffa0072150>{:ib_cm:cm_work_handler+0} 
<ffffffffa0072192>{:ib_cm:cm_work_handler+66}
       <ffffffff80133133>{__wake_up+67} 
<ffffffffa0072150>{:ib_cm:cm_work_handler+0}
       <ffffffff80149110>{worker_thread+496} 
<ffffffff80133070>{default_wake_function+0}
       <ffffffff801330c0>{__wake_up_common+64} 
<ffffffff80133070>{default_wake_function+0}
       <ffffffff8014d630>{keventd_create_kthread+0} 
<ffffffff80148f20>{worker_thread+0}
       <ffffffff8014d630>{keventd_create_kthread+0} 
<ffffffff8014d5e9>{kthread+217}
       <ffffffff8011144b>{child_rip+8} 
<ffffffff8014d630>{keventd_create_kthread+0}
       <ffffffff8014d510>{kthread+0} <ffffffff80111443>{child_rip+0}
       

Code: 0f 0b 15 5e 0b a0 ff ff ff ff 74 01 65 8b 04 25 34 00 00 00
RIP <ffffffffa00b253a>{:ib_sdp:sdp_connect_handler+186} RSP 
<000001015721bc08>
 <0>Kernel panic - not syncing: Oops