linux-ext4 - Re: System hang with EXT4

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Message-ID: <150c16850912101817g497588b2g3aa4dcaf7c5aed7a@mail.gmail.com>
Date:	Thu, 10 Dec 2009 18:17:09 -0800
From:	Justin Maggard <jmaggard10@...il.com>
To:	Dmitry Monakhov <dmonakhov@...nvz.org>
Cc:	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: System hang with EXT4

On Thu, Dec 10, 2009 at 5:29 PM, Dmitry Monakhov <dmonakhov@...nvz.org> wrote:
> Justin Maggard <jmaggard10@...il.com> writes:
>> I have a little more information to add.  After noticing the recent
>> "Fix potential quota deadlock" patch on the mailing list, I figured it
>> would be worth a shot to try it without quotas enabled.  This also
>> avoids the system hang.  I tried applying that patch, but still had
>> the same symptoms using that kernel.  So I'm seeing a consistent
>> system hang with ext4 when delalloc and quotas are enabled on an SMP
>> system.  With either quotas or delalloc disabled, it doesn't hang.
>> Both enabled on a single processor system also doesn't hang.
> You also may try another patch
> "[PATCH] ext4: fix sleep inside spinlock issue aka #14739 V2"

Yes, that patch looks like it did the trick.  Thanks!
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