linux-kernel - Re: [PATCH] Fix guest memory leak and panic

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Message-ID: <OFF565DE9F.92BF6FE5-ON6525792D.00488336-6525792D.00494D56@in.ibm.com>
Date:	Tue, 18 Oct 2011 18:52:19 +0530
From:	Krishna Kumar2 <krkumar2@...ibm.com>
To:	Ian Campbell <Ian.Campbell@...rix.com>
Cc:	"davem@...emloft.net" <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"mst@...hat.com" <mst@...hat.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"rusty@...tcorp.com.au" <rusty@...tcorp.com.au>,
	"virtualization@...ts.linux-foundation.org" 
	<virtualization@...ts.linux-foundation.org>
Subject: Re: [PATCH] Fix guest memory leak and panic

Ian Campbell <Ian.Campbell@...rix.com> wrote on 10/18/2011 04:20:55 PM:

> > > Sigh, only one out of the ten callers of (__)skb_frag_set_page
expects
> > > skb_frag_set_page to take a new reference. I think that's pretty
> > > comprehensive evidence that the current behaviour is unexpected and
> > > wrong.
> >
> > Looks good!
>
> Thanks.

Tested this patch for virtio_net - hang/panic is fixed.
MemFree also doesn't reduce at end of test compared to
the start.

Tested-by: krkumar2@...ibm.com

- KK

> > Does it make sense to commit both of these patches? The
> > reason being - my patch becomes a cleanup of set_skb_frag()
> > in virtio_net driver.
>
> I think your patch remains a valid cleanup but I don't maintain that
> code.
>
> Ian.
>
>

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