From: Alex Chiang <achiang@hp.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Greg KH <greg@kroah.com>,
kay.sievers@vrfy.org, rjw@sisk.pl, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org
Subject: Re: kobj refcounting weirdness
Date: Mon, 9 Mar 2009 12:01:43 -0600 [thread overview]
Message-ID: <20090309180143.GG32589@ldl.fc.hp.com> (raw)
In-Reply-To: <20090309165807.GU25995@parisc-linux.org>
* Matthew Wilcox <matthew@wil.cx>:
> On Mon, Mar 09, 2009 at 10:50:10AM -0600, Alex Chiang wrote:
> > I thought about the allocators returning a pointer to the same
> > location that maybe has some valid looking data hanging around,
> > but it's not wise for someone like me to go pointing fingers at
> > the allocator before I've proven the bug isn't in my code. ;)
>
> Slab poisoning would be the logical next thing to try to decide whether
> the allocator is wrong or you're using it wrong ;-)
We had a double free in the PCIe port driver. Removing the double
free seems to fix my issue.
The double free is only in Jesse's linux-next branch, so no need
to worry about it in mainline/stable.
Thanks.
/ac
next prev parent reply other threads:[~2009-03-09 18:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-09 6:36 kobj refcounting weirdness Alex Chiang
2009-03-09 15:04 ` Greg KH
2009-03-09 15:05 ` Greg KH
2009-03-09 16:50 ` Alex Chiang
2009-03-09 16:58 ` Matthew Wilcox
2009-03-09 17:21 ` Alex Chiang
2009-03-09 18:01 ` Alex Chiang [this message]
2009-03-09 18:21 ` Vegard Nossum
2009-03-09 18:41 ` Alex Chiang
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