Re: NULL pointer dereference when using ALSA SOC

Koen Kooi
2008-09-25T21:49:51Z

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Op 25 sep 2008, om 19:34 heeft Steve Sakoman het volgende geschreven:

> On Thu, Sep 25, 2008 at 10:22 AM, David Brownell <david-
> b@pacbell.net> wrote:
>> On Thursday 25 September 2008, Arun KS wrote:
>>>>>> I narrowed this into CONFIG_SLUB. When it's set, I can
>>>>>> reproduce the
>>>>>> bug both with N810 and Beagle but not when using CONFIG_SLAB.
>>
>> So it's confirmed that SLUB is a factor, but
>> the root cause is still not known or resolved?
>
> Correct. I suspect that somewhere in alsa-lib code is not checking an
> error return on a memory allocation. When I previously discussed this
> issue with the folks on alsa-devel they suspected a bug in alsa-lib.
> I'll give them this additional data and see if someone there wants to
> help track down the root cause.

Hmmm, SLAB makes it trigger the null pointer less, not make it go away
completely :(

regards,

Koen

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