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Re: Occassional problems with unfreeze

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: Occassional problems with unfreeze
From: Hrishikesh Barua <talonx@xxxxxxxxx>
Date: Fri, 26 Sep 2014 17:32:01 +0530
Cc: Brian Foster <bfoster@xxxxxxxxxx>, xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
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In-reply-to: <20140925071852.GE4758@dastard>
References: <CAD2VtSjwu3eB+mrs2vX0G4+MJbHyNGVXvVR+P_ssNY6rydvijA@xxxxxxxxxxxxxx> <20140716124757.GC36312@xxxxxxxxxxxxxxx> <CAD2VtShVThd0j0-YgGE6fAe28DJ1U-CCRR3Sj9eNjTLKp7FygA@xxxxxxxxxxxxxx> <CAD2VtSgdYt2zxmEeWEXmK2B44BKuB-wRKvX4H=jRA9Rj7pyamA@xxxxxxxxxxxxxx> <20140925071852.GE4758@dastard>

Indeed, you are running an old kern (3.2.0-54) which means it won't
have this fix:

3948659 xfs: Account log unmount transaction correctly

And that's likely to be the source of all your freeze/unfreeze
problems because it will eventually hang the log when it's leaked
all it's space in the ether....

We did get a few pointers earlier that 3948659 might be the cause of the freeze/unfreeze problems but now that you have confirmed it we'll upgrade the kernel. Thanks.

- Hrish
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