From: Zan Lynx <zlynx@acm.org>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Ryan Hope <rmh3093@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
linux-mm@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] Lockless patches cause hardlock under heavy IO
Date: Mon, 23 Jun 2008 17:48:47 -0600 [thread overview]
Message-ID: <4860365F.5000609@acm.org> (raw)
In-Reply-To: <200806231229.42943.nickpiggin@yahoo.com.au>
Nick Piggin wrote:
> On Monday 23 June 2008 01:18, Ryan Hope wrote:
>> Well in the current version of the patchset we are using, one user
>> would start playing some game (disabling "Disable Heap Randomization"
>> fixed the hardlocks for him... the other user got hardlocks when
>> copying an ISO from a reiser4 partition to a reiserfs partition
>> (disabling swap fixed the issue for him).
>
> Hmm, nobody has reported such a hang with -mm yet, so maybe it
> is another interaction in the patchset. OTOH, probably nobody
> much uses -mm and reiser4, and reiser4 does lots of weird fiddling
> with pagecache so it could be broken in -mm even.
I have been running and testing -mm with reiser4 for a couple years now.
I haven't been able to run -mm recently because I've been hitting the
copy_user bug Linus fixed for AMD64 but Andrew hasn't updated yet (no
complaints, Andrew) and I'm too lazy to manually patch.
prev parent reply other threads:[~2008-06-24 0:14 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-18 21:15 [BUG] Lockless patches cause hardlock under heavy IO Ryan Hope
2008-06-18 21:28 ` Arjan van de Ven
2008-06-19 14:45 ` Ryan Hope
2008-06-20 0:05 ` Arjan van de Ven
2008-06-19 8:12 ` Peter Zijlstra
2008-06-19 8:19 ` Nick Piggin
2008-06-19 14:52 ` Ryan Hope
2008-06-19 20:31 ` Ryan Hope
2008-06-20 14:33 ` Ryan Hope
2008-06-22 14:37 ` Ryan Hope
2008-06-22 15:07 ` Peter Zijlstra
2008-06-22 15:18 ` Ryan Hope
2008-06-23 2:29 ` Nick Piggin
2008-06-23 3:51 ` Ryan Hope
2008-06-23 3:56 ` Nick Piggin
2008-06-23 11:54 ` Nick Piggin
2008-06-23 13:05 ` Paul E. McKenney
2008-06-24 0:13 ` Nick Piggin
2008-06-24 15:12 ` Ryan Hope
2008-06-24 15:32 ` Paul E. McKenney
2008-06-24 15:57 ` Ryan Hope
2008-06-24 16:12 ` Paul E. McKenney
2008-06-24 16:23 ` Ryan Hope
2008-06-24 18:01 ` Ryan Hope
2008-06-23 23:48 ` Zan Lynx [this message]
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