linux-kernel - Re: a whole bunch of crashes since todays -mm merge.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 7 Jun 2012 18:06:27 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Dave Jones <davej@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>, linux-mm@...ck.org
Subject: Re: a whole bunch of crashes since todays -mm merge.

On Thu, Jun 7, 2012 at 6:00 PM, Dave Jones <davej@...hat.com> wrote:
>
> Or I might just be getting lucky..

Do you have SPLIT_RSS_COUNTING enabled?

Do you see multiple "BUG: Bad rss-counter state" messages?

The sync_mm_rss() thing could basically overwrite an already-free'd
piece of memory, so it could cause pretty random stuff. But I think
you need to be unlucky to hit the window.

                Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/