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]
Message-ID: <4DF8DCB8.9050103@redhat.com>
Date:	Wed, 15 Jun 2011 12:24:24 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Christoph Lameter <cl@...ux.com>
CC:	Linux kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kyle McMartin <kyle@...hat.com>
Subject: Re: SLUB BUG: check_slab called with interrupts enabled

On 06/15/2011 11:45 AM, Christoph Lameter wrote:
> On Wed, 15 Jun 2011, Rik van Riel wrote:
>
>> > There are no additional special slub patches applied right? Because
>> some
>> > of the patches under discussion change the interrupt disable handling a
>> > bit.
>>
>> Just the two attached ones, which don't seem to touch the
>> code path in question...
>
> I also do not see how these could break something. But they are mucking
> around with the __GFP_WAIT flag. __GFP_WAIT determines the reenabling and
> redisabling of interrupts in __slab_alloc(). If some variables gets
> corrupted then this could be the result.
>
> Print out the value of gfpflags before and after the call to new_slab()
> from __slab_alloc()?

Since I'm building a new kernel anyway (with Neil Horman's
patch to make netconsole work with tun/tap), I have commented
out these two slub patches.

Lets see what happens...

-- 
All rights reversed
--
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ