linux/net/ipv4
Herbert Xu b5da623ae9 [TCP]: Adjust {p,f}ackets_out correctly in tcp_retransmit_skb()
Well I've only found one potential cause for the assertion
failure in tcp_mark_head_lost.  First of all, this can only
occur if cnt > 1 since tp->packets_out is never zero here.
If it did hit zero we'd have much bigger problems.

So cnt is equal to fackets_out - reordering.  Normally
fackets_out is less than packets_out.  The only reason
I've found that might cause fackets_out to exceed packets_out
is if tcp_fragment is called from tcp_retransmit_skb with a
TSO skb and the current MSS is greater than the MSS stored
in the TSO skb.  This might occur as the result of an expiring
dst entry.

In that case, packets_out may decrease (line 1380-1381 in
tcp_output.c).  However, fackets_out is unchanged which means
that it may in fact exceed packets_out.

Previously tcp_retrans_try_collapse was the only place where
packets_out can go down and it takes care of this by decrementing
fackets_out.

So we should make sure that fackets_out is reduced by an appropriate
amount here as well.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-10 18:32:36 -07:00
..
ipvs
netfilter [PATCH] don't try to do any NAT on untracked connections 2005-08-08 11:48:28 -07:00
Kconfig [IPV4]: Fix Kconfig syntax error 2005-07-27 13:00:04 -07:00
Makefile [NET]: Move in_aton from net/ipv4/utils.c to net/core/utils.c 2005-07-27 15:24:42 -07:00
af_inet.c [IPV4]: Fix up lots of little whitespace indentation stuff in fib_trie. 2005-07-19 14:01:51 -07:00
ah4.c
arp.c
datagram.c
devinet.c
esp4.c
fib_frontend.c
fib_hash.c
fib_lookup.h
fib_rules.c
fib_semantics.c [IPV4]: Fix memory leak during fib_info hash expansion. 2005-08-05 04:12:48 -07:00
fib_trie.c [IPV4]: Fix up lots of little whitespace indentation stuff in fib_trie. 2005-07-19 14:01:51 -07:00
icmp.c [IPV4]: Debug cleanup 2005-08-08 14:26:52 -07:00
igmp.c
inetpeer.c
ip_forward.c
ip_fragment.c [IPV4]: Debug cleanup 2005-08-08 14:26:52 -07:00
ip_gre.c [NET]: fix oops after tunnel module unload 2005-07-30 17:46:44 -07:00
ip_input.c
ip_options.c
ip_output.c
ip_sockglue.c [IPSEC]: Restrict socket policy loading to CAP_NET_ADMIN. 2005-08-06 06:33:15 -07:00
ipcomp.c
ipconfig.c
ipip.c [NET]: fix oops after tunnel module unload 2005-07-30 17:46:44 -07:00
ipmr.c [NET]: Spelling mistakes threshoulds -> thresholds 2005-07-30 17:41:59 -07:00
multipath.c
multipath_drr.c
multipath_random.c
multipath_rr.c
multipath_wrandom.c
proc.c
protocol.c
raw.c
route.c
syncookies.c
sysctl_net_ipv4.c
tcp.c
tcp_bic.c
tcp_cong.c
tcp_diag.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_input.c
tcp_ipv4.c [IPV4]: Debug cleanup 2005-08-08 14:26:52 -07:00
tcp_minisocks.c
tcp_output.c [TCP]: Adjust {p,f}ackets_out correctly in tcp_retransmit_skb() 2005-08-10 18:32:36 -07:00
tcp_scalable.c
tcp_timer.c
tcp_vegas.c
tcp_westwood.c
udp.c [IPV4]: Debug cleanup 2005-08-08 14:26:52 -07:00
xfrm4_input.c
xfrm4_output.c
xfrm4_policy.c
xfrm4_state.c
xfrm4_tunnel.c [NET]: Make ipip/ip6_tunnel independant of XFRM 2005-07-19 14:03:34 -07:00