From: Jeff Dike <jdike@addtoit.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] [patch] uml fixes, 2.6.1-mm5-A2
Date: Thu, 22 Jan 2004 13:42:36 -0500 [thread overview]
Message-ID: <20040122184236.GB3317@ccure.user-mode-linux.org> (raw)
In-Reply-To: <20040122162139.GA28167@elte.hu>
On Thu, Jan 22, 2004 at 05:21:39PM +0100, Ingo Molnar wrote:
> the patch below fixes a bug in UML that i've reproduced under 2.6.1-mm5.
>
> The bug hits in the following race scenario: if userspace() is just
> about to handle a SIGTRAP signal that it wants to relay_signal(), and
> SIGVTALRM hits the context before this happens but after is_user is set
> to 1 in userspace(), then we get a kernelspace-signal panic. Ought to be
> rare but definitely triggerable.
Applied, nice catch.
Jeff
-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
next prev parent reply other threads:[~2004-01-22 18:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-20 19:17 [uml-devel] [patch] uml-fixes-2.6.1-mm5-A1 Ingo Molnar
2004-01-20 19:43 ` [uml-devel] [patch] uml-fixes2-2.6.1-mm5-A0 Ingo Molnar
2004-01-20 20:01 ` [uml-devel] [patch] uml-fixes2-2.6.1-mm5-A1 Ingo Molnar
2004-01-22 16:21 ` [uml-devel] [patch] uml fixes, 2.6.1-mm5-A2 Ingo Molnar
2004-01-22 18:42 ` Jeff Dike [this message]
2004-01-23 6:18 ` nsb034
2004-01-28 4:39 ` Jeff Dike
2004-01-23 9:35 ` [uml-devel] " Ingo Molnar
2004-01-23 13:56 ` Jeff Dike
2004-01-23 13:51 ` Ingo Molnar
2004-01-23 16:09 ` Jeff Dike
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=20040122184236.GB3317@ccure.user-mode-linux.org \
--to=jdike@addtoit.com \
--cc=mingo@elte.hu \
--cc=user-mode-linux-devel@lists.sourceforge.net \
/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