linux-kernel - Re: [resend PATCH] DMA: PL330: fix locking in pl330_free_chan

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20130626120558.3a05f4a099822c529912a14c@linux-foundation.org>
Date:	Wed, 26 Jun 2013 12:05:58 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:	Vinod Koul <vinod.koul@...ux.intel.com>,
	Jassi Brar <jassisinghbrar@...il.com>,
	Tomasz Figa <t.figa@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [resend PATCH] DMA: PL330: fix locking in
 pl330_free_chan_resources()

On Wed, 26 Jun 2013 15:29:15 +0200 Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com> wrote:

> 
> tasklet_kill() may sleep so call it before taking pch->lock.
> 
> Fixes following lockup:
> 
> [  345.470000] BUG: scheduling while atomic: cat/2383/0x00000002

Seems rather unpleasant, so I added a cc:stable to the changelog.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/