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

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Message-ID: <20080516180426.GA3284@cs181133002.pp.htv.fi>
Date:	Fri, 16 May 2008 21:04:26 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	NetDev <netdev@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jeff Garzik <jgarzik@...ox.com>
Subject: Re: Top kernel oopses/warnings for the week of May 16th 2008

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.

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

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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