From: William Lee Irwin III <wli@holomorphy.com>
To: jjs <jjs@tmsusa.com>
Cc: Andrew Morton <akpm@digeo.com>,
linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.5.69-mm8 improvements and one oops
Date: Thu, 22 May 2003 13:50:51 -0700 [thread overview]
Message-ID: <20030522205051.GX8978@holomorphy.com> (raw)
In-Reply-To: <3ECD35E2.10109@tmsusa.com>
Andrew Morton wrote
>> You hit the free-of-a-freed-task_struct bug.
>> This bug has been hanging around for ages. It is very rare and nobody
>> knows what causes it.
On Thu, May 22, 2003 at 01:41:06PM -0700, jjs wrote:
> I'm lucky I suppose -
The cause for this is less than obvious.
Andrew Morton wrote
>> Are you running preempt? SMP? Is it repeatable?
On Thu, May 22, 2003 at 01:41:06PM -0700, jjs wrote:
> It's preempt, defintely, always -
> But just a UP kernel on a lowly UP box -
> As for repeatability, I'll see if I can induce
> the oops again but there's no telling...
Preempt is a common theme in the reports I've seen on this. It appears
SMP allows the offender to clean up after the bug, but relatively long
times between racy things rescheduling on preempt triggers the issue
more readily.
-- wli
prev parent reply other threads:[~2003-05-22 20:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-22 18:14 2.5.69-mm8 improvements and one oops jjs
2003-05-22 18:35 ` Mike Fedyk
2003-05-22 19:05 ` jjs
2003-05-22 20:07 ` Andrew Morton
2003-05-22 20:41 ` jjs
2003-05-22 20:50 ` William Lee Irwin III [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20030522205051.GX8978@holomorphy.com \
--to=wli@holomorphy.com \
--cc=akpm@digeo.com \
--cc=jjs@tmsusa.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox