Re: [PATCH] ipv6: Fix Makefile offload objects
From: Vlad Yasevich <hidden>
Date: 2012-12-17 15:41:01
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On 12/16/2012 11:47 AM, Simon Arlott wrote:
The following commit breaks IPv6 TCP transmission for me: Commit 75fe83c32248d99e6d5fe64155e519b78bb90481 Author: Vlad Yasevich [off-list ref] Date: Fri Nov 16 09:41:21 2012 +0000 ipv6: Preserve ipv6 functionality needed by NET This patch fixes the typo "ipv6_offload" which should be "ipv6-offload". I don't know why not including the offload modules should break TCP. Disabling all offload options on the NIC didn't help. Outgoing pulseaudio traffic kept stalling.
Did you restart your application to restart the socket?\ The trouble is that whe GSO is turned on, we try to perform it on output. If the output path can't find the gso handler for the protocol (in your case tcp over IPv6), it drops the packet. This causes tcp to retransmit eventually withough GSO. If you were in a VM, GSO is always used even though you might disable it on the interface with ethtool. The only way I've been able to disable it when using virtio driver is by passing gso=0 parameter to the module. -vlad
quoted hunk ↗ jump to hunk
Signed-off-by: Simon Arlott <redacted> --- net/ipv6/Makefile | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile index 2068ac4..4ea2448 100644 --- a/net/ipv6/Makefile +++ b/net/ipv6/Makefile@@ -41,6 +41,6 @@ obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.o obj-$(CONFIG_IPV6_GRE) += ip6_gre.o obj-y += addrconf_core.o exthdrs_core.o -obj-$(CONFIG_INET) += output_core.o protocol.o $(ipv6_offload) +obj-$(CONFIG_INET) += output_core.o protocol.o $(ipv6-offload) obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o