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From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
	virtualization@lists.linux-foundation.org,
	Anthony Liguori <anthony@codemonkey.ws>,
	kvm@vger.kernel.org, avi@redhat.com,
	Carsten Otte <cotte@de.ibm.com>,
	t@redhat.com
Subject: Re: [PATCH 1/2] virtio: fix memory leak on device removal
Date: Thu, 23 Jul 2009 13:56:58 +0930	[thread overview]
Message-ID: <200907231356.59681.rusty@rustcorp.com.au> (raw)
In-Reply-To: <20090721155909.GB3306@redhat.com>

On Wed, 22 Jul 2009 01:29:09 am Michael S. Tsirkin wrote:
> Free up msi vector tables.

Michael, this papers over the bug, but doesn't actually fix the problem.

The problem is that vp_free_vectors() does not do the reverse of 
vp_request_vectors.  If the author (you) can't get it right, what hope the 
rest of us?

Indeed, if you look harder, you'll see another leak caused by this problem, 
which your patch *didn't* fix.

Thanks,
Rusty.

  parent reply	other threads:[~2009-07-23  4:27 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1248181714.git.mst@redhat.com>
2009-07-21 15:59 ` [PATCH 1/2] virtio: fix memory leak on device removal Michael S. Tsirkin
2009-07-21 15:59 ` Michael S. Tsirkin
2009-07-21 16:03   ` Michael S. Tsirkin
2009-07-21 16:03   ` Michael S. Tsirkin
2009-07-23  4:26   ` Rusty Russell [this message]
2009-07-23 10:27     ` Michael S. Tsirkin
2009-07-23 10:27     ` Michael S. Tsirkin
2009-07-23  4:26   ` Rusty Russell
2009-07-21 15:59 ` [PATCH 2/2] virtio: fix double free_irq Michael S. Tsirkin
2009-07-21 15:59 ` Michael S. Tsirkin
2009-07-23  4:40   ` Rusty Russell
2009-07-23  4:40   ` Rusty Russell
2009-07-23  9:08     ` Michael S. Tsirkin
2009-07-23  9:08     ` Michael S. Tsirkin
2009-07-23 10:20     ` Michael S. Tsirkin
2009-07-23 10:20     ` Michael S. Tsirkin

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