linux-kernel - Re: [PATCH v3 00/11] PCI core learns hotplug

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Message-ID: <20090309203719.GR32589@ldl.fc.hp.com>
Date:	Mon, 9 Mar 2009 14:37:19 -0600
From:	Alex Chiang <achiang@...com>
To:	Vegard Nossum <vegard.nossum@...il.com>
Cc:	Pekka Enberg <penberg@...helsinki.fi>, Ingo Molnar <mingo@...e.hu>,
	jbarnes@...tuousgeek.org, xyzzy@...akeasy.org, djwong@...ibm.com,
	shimada-yxb@...st.nec.co.jp, rjw@...k.pl,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 00/11] PCI core learns hotplug

* Vegard Nossum <vegard.nossum@...il.com>:
> 2009/3/9 Alex Chiang <achiang@...com>:
> >> It reproduces reliably if I do this:
> >>
> >> $ while true; do echo 1 > /sys/bus/pci/devices/0000\:00\:00.0/remove; done
> >
> > I was going to ask for lspci -v output so that I could see what
> > device 0000:00:00.0 might be, but I was able to reproduce
> > something similar on my machine.
> >
> > Can I ask why you're doing the above with a while loop? Just to
> > torture the code? Or something else?
> 
> Yes, purely for the purpose of torture ;-)
 
Ok, just checking. :)

> I also found one more use-after-free error using kmemcheck:
> 
> Hope this helps :-)

Yes, thanks a lot!

I'll work on these. Thanks for the excellent bug reports.

/ac

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