linux-kernel - Re: [PATCH] block: replace __getblk_slow misfix by grow_dev

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:	Wed, 22 Aug 2012 12:52:44 +0100
From:	"Richard W.M. Jones" <rjones@...hat.com>
To:	Hugh Dickins <hughd@...gle.com>
Cc:	Jeff Moyer <jmoyer@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jens Axboe <jaxboe@...ionio.com>,
	Torsten Hilbrich <torsten.hilbrich@...unet.com>,
	Josh Boyer <jwboyer@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: replace __getblk_slow misfix by grow_dev_page fix

On Tue, Aug 21, 2012 at 06:33:45PM -0700, Hugh Dickins wrote:
> Jeff,
> 
> Your commit 91f68c89d8f3 ("block: fix infinite loop in __getblk_slow"),
> already gone into 3.* stable, is not good.  Could you and your testers
> please give this alternative a try - I think it should work, and have
> started it on a few days' memory load on 3.5, but not tried your case.

I have tested your patch and it does NOT fix the problem in
http://bugzilla.redhat.com/835019
Kernel 3.6.0 + your patch => mount goes into a loop when mounting
a small empty partition.  Please do NOT apply this as it will
cause a regression!

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org
--
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/