Re: Re: Bug#627671: gkrellm: unable to handle kernel NULL pointer dereference at (null)

On 24.08.11 00:09, Sandro Tosi wrote:
> forwarded 627671 [email protected]
> thanks
>
> Dear Gkrellm developer, a Debian user report this kernel oops with
> gkrellm 2.3.4 (he's still not able to test 2.3.5) - do you think it
> could be possibly be generated by gkrellm?
>
 > [...]
 >> May 23 19:22:50 debhm kernel: [28277.764520] BUG: unable to handle 
kernel NULL pointer dereference at (null)
 >> May 23 19:22:50 debhm kernel: [28277.764532] IP: [<c14030fb>] 0xc14030fb
 >> May 23 19:22:50 debhm kernel: [28277.764547] *pde = 00000000
 >> May 23 19:22:50 debhm kernel: [28277.764553] Oops: 0002 [#1] SMP
 >> May 23 19:22:50 debhm kernel: [28277.764559] last sysfs file: 
/sys/devices/platform/w83627hf.656/pwm2

A kernel NULL pointer dereference sounds more like a bug in the kernel 
that is triggered by gkrellm (a userland application has no direct 
access to kernel pointers). The "last sysfs file" suggests a problem 
while querying the pwm2 fan speed sensor.

This will probably just go away by using a gkrellm that uses libsensors 
instead of directly reading sysfs contents.

Bye,
Stefan Gehn

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