[Bluez-users] kernel bug?

[Bluez-users] kernel bug?

[Dave Sailer]

I have been getting a kernel bug in bluetooth startup. I'm running 
gentoo 2.6.8-r7. I have tried a fresh kernel, including a 2.6.8.1 
version.  Should this be reported as a kernel bug. How do I go about that?

------------[ cut here ]------------
kernel BUG at mm/slab.c:1382!
invalid operand: 0000 [#1]
PREEMPT SMP
Modules linked in: bluetooth nvidia snd_ens1370 snd_ak4531_codec
CPU:    0
EIP:    0060:[<c014473d>]    Tainted: P 
EFLAGS: 00010202   (2.6.8.1)
EIP is at kmem_cache_create+0x41d/0x5d0
eax: 0000002b   ebx: dff9a370   ecx: c05e0978   edx: 00000286
esi: c04c8b48   edi: e08f4664   ebp: dfdb3ce0   esp: df94bf4c
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 6554, threadinfo=df94a000 task=df284250)
Stack: c0490fe4 e08f465c 00000020 00002000 df94bf70 dfdb3d38 0000000a 
c0000000
       ffffffe0 000000c0 c04e69a0 df94a000 e08f7940 c04e6984 e08ca06f 
e08f465c
       00000174 00000020 00002000 00000000 00000000 c01391f8 c05e0828 
00000001
Call Trace:
 [<e08ca06f>] bt_init+0x6f/0xc0 [bluetooth]
 [<c01391f8>] sys_init_module+0x158/0x2b0
 [<c010528b>] syscall_call+0x7/0xb
Code: 0f 0b 66 05 f8 08 49 c0 8b 0b e9 5b ff ff ff 8b 47 50 c7 04
 <6>agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode



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Re: [Bluez-users] kernel bug?

[Marcel Holtmann]

Hi Dave,

> I have been getting a kernel bug in bluetooth startup. I'm running 
> gentoo 2.6.8-r7. I have tried a fresh kernel, including a 2.6.8.1 
> version.  Should this be reported as a kernel bug. How do I go about that?
> 
> ------------[ cut here ]------------
> kernel BUG at mm/slab.c:1382!
> invalid operand: 0000 [#1]
> PREEMPT SMP
> Modules linked in: bluetooth nvidia snd_ens1370 snd_ak4531_codec
> CPU:    0
> EIP:    0060:[<c014473d>]    Tainted: P 
> EFLAGS: 00010202   (2.6.8.1)
> EIP is at kmem_cache_create+0x41d/0x5d0
> eax: 0000002b   ebx: dff9a370   ecx: c05e0978   edx: 00000286
> esi: c04c8b48   edi: e08f4664   ebp: dfdb3ce0   esp: df94bf4c
> ds: 007b   es: 007b   ss: 0068
> Process modprobe (pid: 6554, threadinfo=df94a000 task=df284250)
> Stack: c0490fe4 e08f465c 00000020 00002000 df94bf70 dfdb3d38 0000000a 
> c0000000
>        ffffffe0 000000c0 c04e69a0 df94a000 e08f7940 c04e6984 e08ca06f 
> e08f465c
>        00000174 00000020 00002000 00000000 00000000 c01391f8 c05e0828 
> 00000001
> Call Trace:
>  [<e08ca06f>] bt_init+0x6f/0xc0 [bluetooth]
>  [<c01391f8>] sys_init_module+0x158/0x2b0
>  [<c010528b>] syscall_call+0x7/0xb
> Code: 0f 0b 66 05 f8 08 49 c0 8b 0b e9 5b ff ff ff 8b 47 50 c7 04
>  <6>agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0.
> agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode

this really looks like a kernel bug. Do you tried a 2.6.9 vanilla?

Regards

Marcel




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Re: [Bluez-users] kernel bug?

[Marcel Holtmann]

Hi Dave,

> I haven't tried vanilla yet - I've built this kernel about 100 times, I
> guess once more won't hurt. Will have to wait till I get this box back into
> work where I have broad-band.

you must really try a vanilla one, because the vendor kernels are not
really predictable. However you might wanna try to disable SMP and
preempt and try again. If it not works then report this to the LKML,
because this bug is in the VM and a way out of my knowledge.

Regards

Marcel




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