[openib-general] CM oops.

[Libor Michalek]

Sean,

  I am seeing a oops on a system which is receiving a passive
connection request. It occurs whether I'm listening on a masked
service ID or an exact service ID. The oops is the same as if I
connect to a system on which there is no active listen at all.
The svn revision is 1623

mask:

#define SDP_MSG_SERVICE_ID_VALUE (0x000000000001FFFFULL)
#define SDP_MSG_SERVICE_ID_MASK  (0xFFFFFFFFFFFF0000ULL)

listen:

	result = ib_cm_listen(dev_root->listen_id,
		              cpu_to_be64(SDP_MSG_SERVICE_ID_VALUE),
			      cpu_to_be64(SDP_MSG_SERVICE_ID_MASK));

oops:

kernel BUG at kernel/workqueue.c:104!
invalid operand: 0000 [#1]
SMP 
Modules linked in: ib_sdp ib_ipoib ib_cm ib_umad ib_sa ib_mthca ib_mad ib_core ipv6 parport_pc lp parport autofs4 e1000 af_packet ide_cd cdrom sg microcode dm_mod uhci_hcd usbcore video thermal processor fan button battery ac ext3 jbd
CPU:    1
EIP:    0060:[<c012f5da>]    Tainted: GF     VLI
EFLAGS: 00010203   (2.6.10) 
EIP is at queue_work+0x5a/0x70
eax: f4be7c84   ebx: f4be7c80   ecx: 00000000   edx: 00000001
esi: f4455800   edi: 00000000   ebp: f4b8ae4c   esp: f4b73ea4
ds: 007b   es: 007b   ss: 0068
Process ib_mad1 (pid: 3773, threadinfo=f4b72000 task=f5038a20)
Stack: f7fc7280 f4b8ae00 f8a62f49 c2024a00 f4b73f44 07000000 f6325e1c 00000282 
       f6325e00 00000000 00000000 f4b8ae00 f4b8ae4c f8a63075 f4b73f14 f4b8ae24 
       f4b8ae4c f4b899cc f4b8ae24 f4b89980 f6325ef4 f4b73f14 f6325e00 f5320800 
Call Trace:
 [<f8a62f49>] ib_mad_complete_recv+0x109/0x110 [ib_mad]
 [<f8a63075>] ib_mad_recv_done_handler+0x125/0x260 [ib_mad]
 [<f8a636f9>] ib_mad_completion_handler+0x69/0x80 [ib_mad]
 [<c0130000>] current_is_keventd+0x20/0x40
 [<c012f87d>] worker_thread+0x1bd/0x260
 [<f8a63690>] ib_mad_completion_handler+0x0/0x80 [ib_mad]
 [<c011c2b0>] default_wake_function+0x0/0x10
 [<c011c2b0>] default_wake_function+0x0/0x10
 [<c012f6c0>] worker_thread+0x0/0x260
 [<c01336ec>] kthread+0x9c/0xb0
 [<c0133650>] kthread+0x0/0xb0
 [<c01022dd>] kernel_thread_helper+0x5/0x18
Code: 00 8d 43 04 0f 44 d1 39 43 04 75 1f c1 e2 07 8d 04 32 89 da e8 48 ff ff ff b9 01 00 00 00 8b 1c 24 89 c8 8b 74 24 04 83 c4 08 c3 <0f> 0b 68 00 2c 55 34 c0 eb d7 8d b6 00 00 00 00 8d bf 00 00 00 
 

-Libor