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Re: XFS blocked task in xlog_cil_force_lsn

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: XFS blocked task in xlog_cil_force_lsn
From: Stefan Priebe - Profihost AG <s.priebe@xxxxxxxxxxxx>
Date: Tue, 17 Apr 2012 10:19:45 +0200
Cc: stable@xxxxxxxxxxxxxxx, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>, Philipp Herz - Profihost AG <p.herz@xxxxxxxxxxxx>
In-reply-to: <20120416235647.GA6734@dastard>
References: <4F8BC0B9.90604@xxxxxxxxxxxx> <20120416235647.GA6734@dastard>
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.28) Gecko/20120313 Thunderbird/3.1.20
Am 17.04.2012 01:56, schrieb Dave Chinner:
> Your first question should be: is this a known problem?
> And the answer to that is: I don't think so.
Sorry absolutely correct.

> So, is the system actually hung?
No. The kernel has ended the stalled request.

> Were there IO errors around this time?
No.

> did the system recover and continue to work normally?
Yes.

> What's your storage hardware, application, workload, etc?
It a Raid 10 of 1TB SATA Drives in front of a 3Ware Controller doing
heavy rsync backups.

Greets
Stefan

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