All of lore.kernel.org
 help / color / mirror / Atom feed
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


  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

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=20090309180143.GG32589@ldl.fc.hp.com \
    --to=achiang@hp.com \
    --cc=greg@kroah.com \
    --cc=kay.sievers@vrfy.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=matthew@wil.cx \
    --cc=rjw@sisk.pl \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.