Re: [3.9-rc5 regression, BISECTED] INFO: task umount:29671 blockedfor more than 120 seconds

From: Jens Axboe
Date: Wed Apr 10 2013 - 08:14:17 EST

On Wed, Apr 10 2013, Jan Kara wrote:
> Axboe <axboe@xxxxxxxxx>, Phillip Susi <psusi@xxxxxxxxxx>
> Bcc:
> Subject: Re: [3.9-rc5 regression, BISECTED] INFO: task umount:29671 blocked
> for more than 120 seconds
> Reply-To:
> In-Reply-To: <12072206.85601365230982200.JavaMail.weblogic@epml02>
> Hello,
> On Sat 06-04-13 06:49:42, Jongman Heo wrote:
> > Once I reported this issue (on 1st Apr), and have just done git bisect.
> >
> > I hit kernel hang with 3.9-rc5, during unmount (the device was mounted via loop device, in case it matters).
> This is known problem and I think already fixed. BTW, it's good to CC
> author of the patch and the relevant maintainer when you bisected the
> problem to a particular patch.

Yep it is, revert went into Linus -git yesterday. And agree on CC'ing
the patch author and maintainer, it's the best way to ensure that it
gets the proper attention it deserves.

Jens Axboe

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