Re: Top kernel oopses/warnings for the week of May 16th 2008

[Arjan van de Ven]

Adrian Bunk wrote:
> On Fri, May 16, 2008 at 09:41:31AM -0700, Arjan van de Ven wrote:
> > ...
> > Bug of the week
> > ---------------
> > Not in the top 10 (but barely not so), but upcoming fast is a bug that has a very
> > distinct pattern.
> > The backtraces are at http://www.kerneloops.org/searchweek.php?search=fput
> >
> > The pattern is that the kernel gets an invalid pointer passed to fput(),
> > coming down from a select() system call done by the "wpa_supplicant" program.
> > The fact that it is ONLY wpa_supplicant implicates the wireless/network stack.
> > Another observation is that this only happens with 64 bit kernels, even though
> > a large portion of the users uses 32 bit kernels. This implies that this is a 64-bit
> > type of bug. It appears that the top 32 bit of the pointers is getting corrupted
> > (the bottom part at least looks valid).
> > ...
>
> Unless I misunderstand your webinterface another pattern is a "fc9" in 
> the version string.

that's because fc9 is the only OS that currently ships the client by default,
which means that it's a statistical thing where 90%+ of the reports come from
Fedora kernels, just because that's where the data is mined.

> My first guess would be that it might be a problem in some code that is 
> only in Fedora kernels?

that may or may not be true, but we can't conclude that right now.
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