This is a note to let you know that I've just added the patch titled
net: pktgen: disable xmit_clone on virtual devices
to the 3.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-pktgen-disable-xmit_clone-on-virtual-devices.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From foo@baz Wed Mar 11 11:44:33 CET 2015
From: Eric Dumazet <[email protected]>
Date: Sun, 22 Feb 2015 17:03:41 -0800
Subject: net: pktgen: disable xmit_clone on virtual devices
From: Eric Dumazet <[email protected]>
[ Upstream commit 52d6c8c6ca125872459054daa70f2f1c698c8e75 ]
Trying to use burst capability (aka xmit_more) on a virtual device
like bonding is not supported.
For example, skb might be queued multiple times on a qdisc, with
various list corruptions.
Fixes: 38b2cf2982dc ("net: pktgen: packet bursting via skb->xmit_more")
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Acked-by: Alexei Starovoitov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/core/pktgen.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1134,6 +1134,9 @@ static ssize_t pktgen_if_write(struct fi
return len;
i += len;
+ if ((value > 1) &&
+ (!(pkt_dev->odev->priv_flags & IFF_TX_SKB_SHARING)))
+ return -ENOTSUPP;
pkt_dev->burst = value < 1 ? 1 : value;
sprintf(pg_result, "OK: burst=%d", pkt_dev->burst);
return count;
Patches currently in stable-queue which might be from [email protected] are
queue-3.19/net-pktgen-disable-xmit_clone-on-virtual-devices.patch
queue-3.19/net-do-not-use-rcu-in-rtnl_dump_ifinfo.patch
queue-3.19/flowcache-fix-kernel-panic-in-flow_cache_flush_task.patch
queue-3.19/tcp-make-sure-skb-is-not-shared-before-using-skb_get.patch
queue-3.19/sock-sock_dequeue_err_skb-needs-hard-irq-safety.patch
queue-3.19/macvtap-make-sure-neighbour-code-can-push-ethernet-header.patch
queue-3.19/ipv4-ip_check_defrag-should-correctly-check-return-value-of-skb_copy_bits.patch
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