From: Andrew Morton <akpm@linux-foundation.org>
To: Oliver Neukum <oneukum@suse.de>
Cc: Eric Piel <eric.piel@tremplin-utc.net>,
Pavel Machek <pavel@ucw.cz>,
Pavel Herrmann <morpheus.ibis@gmail.com>,
lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org,
stable@kernel.org
Subject: Re: [lm-sensors] [patch]hp_accel: Fix race in device removal
Date: Tue, 11 May 2010 02:57:25 +0000 [thread overview]
Message-ID: <20100510225725.6bfdc4a5.akpm@linux-foundation.org> (raw)
In-Reply-To: <201005110755.07717.oneukum@suse.de>
On Tue, 11 May 2010 07:55:07 +0200 Oliver Neukum <oneukum@suse.de> wrote:
> Am Dienstag, 11. Mai 2010 00:46:32 schrieb Andrew Morton:
> > But alas, I (and presumably others) cannot confirm that, because you
> > didn't describe the bug :( This also means that if someone hits a
> > problem with this driver, they won't easily be able to work out whether
> > this patch will fix it.
> >
> >
> > Under what circumstances does it trigger?
> >
> > What are the observed effects when it triggers?
> >
> > Please always include this sort of information when sending bugfixes, thanks.
>
> Sorry,
>
> the patch closes a window during which a work queue might remain
> active after the device is removed and would then lead to ACPI calls
> with undefined behavior.
Had anyone observed this in the field? Was a machine crashing, perhaps?
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WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Oliver Neukum <oneukum@suse.de>
Cc: Eric Piel <eric.piel@tremplin-utc.net>,
Pavel Machek <pavel@ucw.cz>,
Pavel Herrmann <morpheus.ibis@gmail.com>,
lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org,
stable@kernel.org
Subject: Re: [patch]hp_accel: Fix race in device removal
Date: Mon, 10 May 2010 22:57:25 -0400 [thread overview]
Message-ID: <20100510225725.6bfdc4a5.akpm@linux-foundation.org> (raw)
In-Reply-To: <201005110755.07717.oneukum@suse.de>
On Tue, 11 May 2010 07:55:07 +0200 Oliver Neukum <oneukum@suse.de> wrote:
> Am Dienstag, 11. Mai 2010 00:46:32 schrieb Andrew Morton:
> > But alas, I (and presumably others) cannot confirm that, because you
> > didn't describe the bug :( This also means that if someone hits a
> > problem with this driver, they won't easily be able to work out whether
> > this patch will fix it.
> >
> >
> > Under what circumstances does it trigger?
> >
> > What are the observed effects when it triggers?
> >
> > Please always include this sort of information when sending bugfixes, thanks.
>
> Sorry,
>
> the patch closes a window during which a work queue might remain
> active after the device is removed and would then lead to ACPI calls
> with undefined behavior.
Had anyone observed this in the field? Was a machine crashing, perhaps?
next prev parent reply other threads:[~2010-05-11 2:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-07 15:47 [lm-sensors] [patch]hp_accel: Fix race in device removal Oliver Neukum
2010-05-07 15:47 ` Oliver Neukum
2010-05-07 15:54 ` [lm-sensors] " Jean Delvare
2010-05-07 15:54 ` Jean Delvare
2010-05-07 16:03 ` Oliver Neukum
2010-05-07 16:03 ` Oliver Neukum
2010-05-07 16:04 ` Oliver Neukum
2010-05-07 16:04 ` Oliver Neukum
2010-05-07 16:07 ` [lm-sensors] " Pavel Machek
2010-05-07 16:07 ` Pavel Machek
2010-05-07 16:09 ` [lm-sensors] " Éric Piel
2010-05-07 16:09 ` Éric Piel
2010-05-10 22:46 ` [lm-sensors] " Andrew Morton
2010-05-10 22:46 ` Andrew Morton
2010-05-11 5:55 ` [lm-sensors] " Oliver Neukum
2010-05-11 5:55 ` Oliver Neukum
2010-05-11 2:57 ` Andrew Morton [this message]
2010-05-11 2:57 ` Andrew Morton
2010-05-11 6:04 ` [lm-sensors] " Oliver Neukum
2010-05-11 6:04 ` Oliver Neukum
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