linux-kernel - Re: 2.6.35-rc3 deadlocks on semaphore operations

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Message-ID: <4C1F98C3.6090003@colorfullife.com>
Date:	Mon, 21 Jun 2010 18:52:19 +0200
From:	Manfred Spraul <manfred@...orfullife.com>
To:	Christoph Lameter <cl@...ux-foundation.org>
CC:	linux-kernel@...r.kernel.org, Julia Lawall <julia@...u.dk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 2.6.35-rc3 deadlocks on semaphore operations

On 06/21/2010 04:31 PM, Christoph Lameter wrote:
>> - If I run make -j5 bzImage, then no semaphore arrays are used.
>> Could you try to figure out which executable is doing the 'semop()' call?
>>      
> Looks like this was ld
>
>    
Ok, that doesn't help:
$ grep semop -r binutils-2.20.51.0.2/
<nothing>

My guess: On your system, something is preloaded with LD_PRELOAD, and 
that library hangs.
I have no idea which library, and I don't know if it's a library bug or 
a kernel bug.


--
     Manfred
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