Still see the issue
1. I rebooted both the machines, started opensm, after LID assignment
killed opensm.
Next started the ucmpost client/server, killing it panics the system
-Viswa
Unable to handle kernel NULL pointer dereference at virtual address 00000068
printing eip:
c02f2635
*pde = 3661e001
Oops: 0000 [#1]
SMP
Modules linked in: nfsd exportfs lockd autofs4 sunrpc uhci_hcd ehci_hcd
hw_random e1000 ext3 jbd sd_mod
CPU: 0
EIP: 0060:[<c02f2635>] Not tainted VLI
EFLAGS: 00010086 (2.6.12.5)
EIP is at _spin_lock_irqsave+0xa/0x51
eax: 00000064 ebx: 00000286 ecx: f689be6c edx: c036cbcc
esi: 00000064 edi: 00000064 ebp: 00000000 esp: f689be00
ds: 007b es: 007b ss: 0068
Process lt-ucmpost (pid: 3993, threadinfo=f689a000 task=f6ef9540)
Stack: 00000000 c013e3f0 00000000 c036cbcc c0267667 00000000 000000d0
f689beac
f66a9e80 c027393f c0350d00 00000000 f689be6c 0c300000 00000064
f689beac
f66a9e80 c027955f 00000000 0c300000 00000064 000000d0 c0279022
f66a9e80
Call Trace:
[<c013e3f0>] __alloc_pages+0x166/0x3b6
[<c0267667>] ib_get_client_data+0x14/0x54
[<c027393f>] ib_sa_path_rec_get+0x1b/0x13e
[<c027955f>] resolve_path+0x8c/0x15b
[<c0279022>] path_req_complete+0x0/0xf7
[<c02a89a4>] rtnetlink_dump_all+0x0/0x9e
[<c02a8adf>] rtnetlink_done+0x0/0x3
[<c0279a03>] ib_at_paths_by_route+0xc4/0xd9
[<c0278b1d>] same_path_req+0x0/0x95
Sean Hefty wrote:
I downloaded the latest openib gen2 stack and ran into kernel panic when
I run the cmpost/ucmpost example. I modified the program to continously
send and receive data in an infinite loop and killed the application
with ctrl-c.
The kernel panics pretty consistently.
I am currently running 2.6.12 version of the kernel . Log attached. I
will try
upgrading to newer kernel and see if I can reproduce it.
I have gotten something similar to this in my own testing, but haven't had the
time to track it down. It seems to be related to how the IB AT code interacts
with the SM, and if the SM has been restarted. Can you try resetting the SM
node, then rebooting your other systems?
- Sean
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