[ltt-dev] Linux-2.6.29.5 crashes with LTTng-0.122

[srikanth krishnakar]

Hi Mathieu,

Target  : Xilinx 440
Arch : PowerPC
File system: NFS

Just booted Linux-2.6.29.5  with LTTng-0.122 in the kernel : While mounting
the file system.. I noticed the kernel crash saying :

PREEMPT LTT NESTING LEVEL : 0.


Can you please comment on this ?

Here is the trace log :

-----------------------------------------------------------

Freeing unused kernel memory: 172k
init

INIT: version 2.86
booting

------------[ cut here
]------------

kernel BUG at
kernel/workqueue.c:292!

Oops: Exception in kernel mode, sig: 5
[#1]

PREEMPT LTT NESTING LEVEL :
0

Xilinx
Virtex440

Modules linked
in:

NIP: c0049c88 LR: c004a480 CTR:
c002b668

REGS: cfad9eb0 TRAP: 0700   Not tainted
(2.6.29.5)

MSR: 00029000 <EE,ME,CE>  CR: 24000028  XER:
20000000

TASK = cfa737f0[801] 'rpciod/0' THREAD:
cfad8000

GPR00: 00922628 cfad9f60 cfa737f0 cfa380f8 cfad9f98 00000001 00000000
00000000
GPR08: cfad9fa4 00000001 cfa380fc 00922627 24000082 ffffd6c4 f9fedfff
fbbf7fbf
GPR16: fffffffd fff7ffbf e17fffbf 00000001 00000000 cf831fac c033f5a4
c031d870
GPR24: c031d838 00000001 00000000 cfad8034 c02b1ed8 cfad8000 cf2ff3a0
cfa380f8
NIP [c0049c88]
run_workqueue+0xc4/0x1b0

LR [c004a480]
worker_thread+0x54/0xb8

Call
Trace:

[cfad9f60] [cf831fac] 0xcf831fac
(unreliable)

[cfad9f90] [c004a480]
worker_thread+0x54/0xb8

[cfad9fd0] [c004e854]
kthread+0x50/0x88

[cfad9ff0] [c000e078]
original_kernel_thread+0x4c/0x68

Instruction
dump:

813d000c 3929ffff 913d000c 801b0000 70090004 408200b0 7fe3fb78
801f0000
5400003a 7fc00278 3160ffff 7d2b0110 <0f090000> 7c00f828 7c00c878
7c00f92d
---[ end trace 7b7c99a64cabd8ad ]---


Any comments, on this ?

Thanks in Advance!

Srikanth Krishnakar
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