On Wed, Dec 04, 2013 at 08:43:18PM +, Richard Yao wrote:
The 9p-virtio transport does zero copy on things larger than 1024 bytes
in size. It accomplishes this by returning the physical addresses of
pages to the virtio-pci device. At present, the translation is usually a
bit shift.
On 12/06/2013 06:14 AM, Will Deacon wrote:
On Wed, Dec 04, 2013 at 08:43:18PM +, Richard Yao wrote:
The 9p-virtio transport does zero copy on things larger than 1024 bytes
in size. It accomplishes this by returning the physical addresses of
pages to the virtio-pci device. At present, the
On Fri, Dec 06, 2013 at 02:38:28PM +, Richard Yao wrote:
On 12/06/2013 06:14 AM, Will Deacon wrote:
On Wed, Dec 04, 2013 at 08:43:18PM +, Richard Yao wrote:
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 9c5a1aa..5d1d04b 100644
--- a/net/9p/trans_virtio.c
+++
On Thu, Dec 05, 2013 at 01:14:05PM -0800, Michael Dalton wrote:
When a packet with invalid length arrives, ensure that the packet
is freed correctly if mergeable packet buffers and big packets
(GUEST_TSO4) are both enabled.
Signed-off-by: Michael Dalton mwdal...@google.com
Acked-by: Andrew
From: Andrey Vagin ava...@openvz.org
Date: Thu, 5 Dec 2013 18:36:20 +0400
free_unused_bufs must check vi-mergeable_rx_bufs before
vi-big_packets, because we use this sequence in other places.
Otherwise we allocate buffer of one type, then free it as another
type.
...
Fixes: 2613af0ed18a
From: Andrey Vagin ava...@openvz.org
Date: Thu, 5 Dec 2013 18:36:21 +0400
free_netdev calls netif_napi_del too, but it's too late, because napi
structures are placed on vi-rq. netif_napi_add() is called from
virtnet_alloc_queues.
...
Fixes: 986a4f4d452d (virtio_net: multiqueue support)
Cc:
From: Michael Dalton mwdal...@google.com
Date: Thu, 5 Dec 2013 13:14:05 -0800
When a packet with invalid length arrives, ensure that the packet
is freed correctly if mergeable packet buffers and big packets
(GUEST_TSO4) are both enabled.
Signed-off-by: Michael Dalton mwdal...@google.com
Hi David,
This patch fixes a bug introduced by 2613af0ed18a (virtio_net:
migrate mergeable rx buffers to page frag allocators). The bug
is present in both net-next and net. Thanks
Best,
Mike
On Fri, Dec 6, 2013 at 1:32 PM, David Miller da...@davemloft.net wrote:
From: Michael Dalton
Michael Dalton mwdal...@google.com writes:
When a packet with invalid length arrives, ensure that the packet
is freed correctly if mergeable packet buffers and big packets
(GUEST_TSO4) are both enabled.
Signed-off-by: Michael Dalton mwdal...@google.com
Acked-by: Rusty Russell
Jason Wang jasow...@redhat.com writes:
On 12/05/2013 10:36 PM, Andrey Vagin wrote:
free_netdev calls netif_napi_del too, but it's too late, because napi
structures are placed on vi-rq. netif_napi_add() is called from
virtnet_alloc_queues.
general protection fault: [#1] SMP
Dumping
Jason Wang jasow...@redhat.com writes:
On 12/05/2013 10:36 PM, Andrey Vagin wrote:
free_unused_bufs must check vi-mergeable_rx_bufs before
vi-big_packets, because we use this sequence in other places.
Otherwise we allocate buffer of one type, then free it as another
type.
general protection
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