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

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Message-ID: <53BE57CA.9020807@kernel.dk>
Date:	Thu, 10 Jul 2014 11:07:22 +0200
From:	Jens Axboe <axboe@...nel.dk>
To:	Philipp Reisner <philipp.reisner@...bit.com>,
	linux-kernel@...r.kernel.org
CC:	drbd-dev@...ts.linbit.com
Subject: Re: [PATCH] drbd: fix regression 'out of mem, failed to invoke fence-peer
 helper'

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?

-- 
Jens Axboe

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