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Re: File system remain unresponsive until the system is rebooted.

To: Supratik Goswami <supratiksekhar@xxxxxxxxx>
Subject: Re: File system remain unresponsive until the system is rebooted.
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Wed, 1 Feb 2012 06:44:04 +1100
Cc: xfs@xxxxxxxxxxx
In-reply-to: <CANs4eSBgmvJCR7vfFa1W5h8tUYFQi=LRPWDPQ1exB29D1o_RjA@xxxxxxxxxxxxxx>
References: <CANs4eSBWLc4HxAbPZ8kOVOdJ7RKiA+-ai3Q2J+FAyuzHtUqfdg@xxxxxxxxxxxxxx> <20120131013124.GE9090@dastard> <CANs4eSBgmvJCR7vfFa1W5h8tUYFQi=LRPWDPQ1exB29D1o_RjA@xxxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, Jan 31, 2012 at 10:34:10AM +0530, Supratik Goswami wrote:
> We are using Amazon EC2 instances.
> 
> ubuntu@ip-10-0-0-10:~$ uname -aLinux ip-10-0-0-10 2.6.32-318-ec2
> #38-Ubuntu SMP Thu Sep 1 18:09:30 UTC 2011 x86_64 GNU/Linux

The growfs hang problem was fixed in 2.6.34.

On earlier kernels, if you do a grow while the system is under
allocation load it could deadlock. growing on a mostly idle
filesystem was generally OK, but under heavy load problems could
occur. This hang is what xfstests 104 exercises...

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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