Message-ID: <40867A2A.9070709@us.ibm.com>
Date: Wed, 21 Apr 2004 08:42:02 -0500
From: Brian King <brking@us.ibm.com>
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To: Chris Wright <chrisw@osdl.org>
CC: Rusty Russell <rusty@rustcorp.com.au>,
       lkml - Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
       Srivatsa Vaddagiri <vatsa@in.ibm.com>
Subject: Re: [PATCH] Use workqueue for call_usermodehelper
References: <1082345766.30154.13.camel@bach> <20040419113854.H22989@build.pdx.osdl.net>
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Chris Wright wrote:
> * Rusty Russell (rusty@rustcorp.com.au) wrote:
> 
>>[ Vatsa, this should solve your NUMA+HOTPLUG_CPU deadlock too, I think ]
>>
>>This uses the create_singlethread_workqueue() function presented in the
>>last patch, although it could just as easily use create_workqueue().
> 
> 
> Nice, this seems like it should fixup the problem Brian was seeing too,
> and maintain return code from kernel_thread(), etc. instead of the async
> option.  Brian, did you give these changes a whirl? (they're in latest
> -mm tree)

I tried out the fix on my system and it seemed to work fine. However, I
am having trouble recreating the deadlock with old code now that my
system has been reconfigured...

-Brian


-- 
Brian King
eServer Storage I/O
IBM Linux Technology Center

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