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Re: [PATCH 0/3] xfs: allocation worker causes freelist buffer lock hang

To: Ben Myers <bpm@xxxxxxx>
Subject: Re: [PATCH 0/3] xfs: allocation worker causes freelist buffer lock hang
From: Mark Tinguely <tinguely@xxxxxxx>
Date: Thu, 27 Sep 2012 18:27:08 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <5064DE7A.6000608@xxxxxxx>
References: <20120924171159.GG1140@xxxxxxx> <201209241809.q8OI94s3003323@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20120927224852.GJ13214@xxxxxxx> <5064DE7A.6000608@xxxxxxx>
User-agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0
On 09/27/12 18:17, Mark Tinguely wrote:

I will run a x86_64 machine overnight to see if I can get a hang
on that box too.

We are dealing with multiple AGs here, so analysing this one may take
more time.

Rarely but sometimes, this machine will save core upon receiving a NMI.
I will try to get as much information before trying that.

--Mark.

Sorry, I am tired. This does not have to be multiple AGs.

Anyway, the clearing of the xfs_alloc_args structure does not prevent
the hang. More tomorrow.

--Mark.

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