From: Dave Hansen <haveblue@us.ibm.com>
To: Robert Love <rml@tech9.net>
Cc: Linus Torvalds <torvalds@transmeta.com>,
"Adam J. Richter" <adam@yggdrasil.com>,
linux-kernel@vger.kernel.org
Subject: Re: Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time
Date: Thu, 04 Apr 2002 11:41:46 -0800 [thread overview]
Message-ID: <3CACAC7A.4040209@us.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.33.0204041113410.12895-100000@penguin.transmeta.com> <1017948383.22303.537.camel@phantasy>
Robert Love wrote:
> tsk->exit_code = code;
> exit_notify();
> + preempt_enable_no_resched();
* PREEMPT HERE *
> schedule();
> BUG();
Isn't there still a race here? A preempt CAN happen after you reenable,
right? Admittedly, its a small window, but it _is_ a window.
--
Dave Hansen
haveblue@us.ibm.com
next prev parent reply other threads:[~2002-04-04 19:42 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-04 11:59 Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time Adam J. Richter
2002-04-04 12:56 ` Stelian Pop
2002-04-04 13:40 ` Alessandro Suardi
2002-04-04 16:23 ` David C. Hansen
2002-04-04 18:28 ` Dave Hansen
2002-04-04 18:51 ` Robert Love
2002-04-04 19:14 ` Linus Torvalds
2002-04-04 19:26 ` Robert Love
2002-04-04 19:41 ` Dave Hansen [this message]
2002-04-04 20:02 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() atboot time george anzinger
2002-04-04 20:54 ` Andrew Morton
2002-04-04 21:34 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time Roger Larsson
2002-04-04 22:38 ` Andrew Morton
2002-04-04 22:42 ` Linus Torvalds
2002-04-04 22:54 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() atboot time Andrew Morton
2002-04-04 23:07 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time Robert Love
2002-04-04 23:42 ` Linus Torvalds
2002-04-04 23:47 ` Robert Love
2002-04-04 23:55 ` Linus Torvalds
2002-04-05 0:03 ` [PATCH] preemptive kernel behavior change: don't be rude Robert Love
2002-04-05 1:51 ` george anzinger
2002-04-05 2:06 ` Robert Love
2002-04-04 22:55 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time Robert Love
2002-04-04 23:10 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() atboot time Andrew Morton
2002-04-04 23:16 ` Robert Love
2002-04-04 19:13 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() at boot time Linus Torvalds
2002-04-04 19:16 ` Robert Love
2002-04-04 19:45 ` Linus Torvalds
2002-04-04 20:09 ` Patch: linux-2.5.8-pre1/kernel/exit.c change caused BUG() atboot time george anzinger
2002-04-04 19:48 ` george anzinger
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