linux-kernel - Re: [PATCH] drbd: fix regression 'out of mem, failed to invoke fence-peer helper'

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Message-ID: <2397073.C8BSPuutsL@fat-tyre>
Date:	Thu, 10 Jul 2014 11:53:29 +0200
From:	Philipp Reisner <philipp.reisner@...bit.com>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	linux-kernel@...r.kernel.org, drbd-dev@...ts.linbit.com
Subject: Re: [PATCH] drbd: fix regression 'out of mem, failed to invoke fence-peer helper'

Am Donnerstag, 10. Juli 2014, 11:07:22 schrieb Jens Axboe:
> On 2014-07-09 21:18, Philipp Reisner wrote:
> > From: Lars Ellenberg <lars.ellenberg@...bit.com>
> > 
> > Since linux kernel 3.13, kthread_run() internally uses
> > wait_for_completion_killable().  We sometimes may use kthread_run()
> > while we still have a signal pending, which we used to kick our threads
> > out of potentially blocking network functions, causing kthread_run() to
> > mistake that as a new fatal signal and fail.
> > 
> > Fix: flush_signals() before kthread_run().
> 
> Applied - should this have been marked stable, if it affects 3..13+ kernels?

Yes, you are right. It should go to the stable kernels since 3.13 as
well.

What is the correct way for me to mark it as stable when sending a patch?

-phil

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