original_kernel/net/ipv4
Eric Dumazet 22b4a4f22d tcp: fix retransmit of partially acked frames
Alexander Beregalov reported skb_over_panic errors and provided stack
trace.

I occurs commit a21d45726a (tcp: avoid order-1 allocations on wifi and
tx path) added a regression, when a retransmit is done after a partial
ACK.

tcp_retransmit_skb() tries to aggregate several frames if the first one
has enough available room to hold the following ones payload. This is
controlled by /proc/sys/net/ipv4/tcp_retrans_collapse tunable (default :
enabled)

Problem is we must make sure _pskb_trim_head() doesnt fool
skb_availroom() when pulling some bytes from skb (this pull is done when
receiver ACK part of the frame).

Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Marc MERLIN <marc@merlins.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-18 16:52:45 -04:00
..
netfilter netfilter: nf_ct_ipv4: packets with wrong ihl are invalid 2012-04-10 12:50:49 +02:00
Kconfig
Makefile
af_inet.c
ah4.c
arp.c
cipso_ipv4.c
datagram.c
devinet.c
esp4.c
fib_frontend.c
fib_lookup.h
fib_rules.c
fib_semantics.c
fib_trie.c
gre.c
icmp.c
igmp.c
inet_connection_sock.c
inet_diag.c
inet_fragment.c
inet_hashtables.c
inet_lro.c
inet_timewait_sock.c
inetpeer.c
ip_forward.c
ip_fragment.c
ip_gre.c
ip_input.c
ip_options.c
ip_output.c
ip_sockglue.c
ipcomp.c
ipconfig.c
ipip.c
ipmr.c
netfilter.c
ping.c
proc.c
protocol.c
raw.c
route.c
syncookies.c
sysctl_net_ipv4.c
tcp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-04-12 14:04:33 -07:00
tcp_bic.c
tcp_cong.c
tcp_cubic.c
tcp_diag.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c tcp: fix tcp_grow_window() for large incoming frames 2012-04-17 22:32:00 -04:00
tcp_ipv4.c dmaengine-fixes for 3.4-rc3 2012-04-10 15:30:16 -07:00
tcp_lp.c
tcp_memcontrol.c
tcp_minisocks.c
tcp_output.c tcp: fix retransmit of partially acked frames 2012-04-18 16:52:45 -04:00
tcp_probe.c
tcp_scalable.c
tcp_timer.c
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c
udp.c
udp_diag.c
udp_impl.h
udplite.c
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c
xfrm4_state.c
xfrm4_tunnel.c