kern/146031: [snd_hda] race condition when kldunload snd_hda
gcooper at FreeBSD.org
Mon Apr 26 11:00:13 UTC 2010
The following reply was made to PR kern/146031; it has been noted by GNATS.
From: Garrett Cooper <gcooper at FreeBSD.org>
To: Alexander Best <alexbestms at wwu.de>
Cc: bug-followup at freebsd.org
Subject: Re: kern/146031: [snd_hda] race condition when kldunload snd_hda
Date: Mon, 26 Apr 2010 03:58:06 -0700
On Mon, Apr 26, 2010 at 3:23 AM, Alexander Best <alexbestms at wwu.de> wrote:
> Garrett Cooper schrieb am 2010-04-26:
>> Hi Alexander,
>> =A0 =A0 1. How many cores and processors does your machine have?
>> =A0 =A0 2. Do you have SMP enabled?
> 1. one cpu with 2 cores.
> 2. yes and using the old bsd4 scheduler.
Ok... now this is definitely non-standard.
1. My laptop is a dual-core Core2Duo proc (the full details are in the
2. I'm using SCHED_ULE, like most other folks post-7.x.
I suggest using SCHED_ULE instead of SCHED_4BSD. You might only be
able to run into the issue with SCHED_ULE because of how it schedules
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