kernel_optimize_test/net/core
Ilpo Järvinen 0ace285605 tcp: handle shift/merge of cloned skbs too
This caused me to get repeatably:

  tcpdump: pcap_loop: recvfrom: Bad address

Happens occassionally when I tcpdump my for-looped test xfers:
  while [ : ]; do echo -n "$(date '+%s.%N') "; ./sendfile; sleep 20; done

Rest of the relevant commands:
  ethtool -K eth0 tso off
  tc qdisc add dev eth0 root netem drop 4%
  tcpdump -n -s0 -i eth0 -w sacklog.all

Running net-next under kvm, connection goes to the same host
(basically just out of kvm). The connection itself works ok
and data gets sent without corruption even with a large
number of tests while tcpdump fails usually within less than
5 tests.

Whether it only happens because of this change or not, I
don't know for sure but it's the only thing with which
I've seen that error. The non-cloned variant works w/o it
for much longer time. I'm yet to debug where the error
actually comes from.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-24 21:30:21 -08:00
..
datagram.c net: sk_free_datagram() should use sk_mem_reclaim_partial() 2008-11-05 01:38:06 -08:00
dev_mcast.c net: Rationalise email address: Network Specific Parts 2008-10-13 19:01:08 -07:00
dev.c netdev: add more functions to netdevice ops 2008-11-20 20:14:53 -08:00
dst.c net: speedup dst_release() 2008-11-14 00:53:54 -08:00
ethtool.c netdev: Add support for rx flow hash configuration, using ethtool. 2008-07-02 03:47:41 -07:00
fib_rules.c net: fib_rules ordering fixes. 2008-11-07 22:52:34 -08:00
filter.c filter: add SKF_AD_NLATTR_NEST to look for nested attributes 2008-11-20 00:49:27 -08:00
flow.c net: mark flow_cache_cpu_prepare() as __init 2008-11-06 23:06:44 -08:00
gen_estimator.c net: gen_estimator: Fix gen_kill_estimator() lookups 2008-11-24 15:48:05 -08:00
gen_stats.c [NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API 2008-01-28 15:11:10 -08:00
iovec.c net: Use standard structures for generic socket address structures. 2008-07-19 22:35:47 -07:00
kmap_skb.h [PATCH] severing skbuff.h -> highmem.h 2006-12-04 02:00:29 -05:00
link_watch.c net: Clean up explicit ->tx_queue references in link watch. 2008-07-08 23:01:06 -07:00
Makefile net: Add SKB DMA mapping helper functions. 2008-09-11 04:51:14 -07:00
neighbour.c netdev: add more functions to netdevice ops 2008-11-20 20:14:53 -08:00
net_namespace.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-10-31 00:17:34 -07:00
net-sysfs.c netdev: introduce dev_get_stats() 2008-11-19 21:40:23 -08:00
net-sysfs.h netns: Fix device renaming for sysfs 2008-05-02 17:00:58 -07:00
netevent.c [NET]: net/core/netevent.c should #include <net/netevent.h> 2007-07-05 17:40:27 -07:00
netpoll.c netdev: add more functions to netdevice ops 2008-11-20 20:14:53 -08:00
pktgen.c netdev: add more functions to netdevice ops 2008-11-20 20:14:53 -08:00
request_sock.c net: convert BUG_TRAP to generic WARN_ON 2008-07-25 21:43:18 -07:00
rtnetlink.c netdev: introduce dev_get_stats() 2008-11-19 21:40:23 -08:00
scm.c scm: fix scm_fp_list->list initialization made in wrong place 2008-11-14 14:51:45 -08:00
skb_dma_map.c net: Fix off-by-one in skb_dma_map 2008-10-12 21:07:34 -07:00
skbuff.c tcp: handle shift/merge of cloned skbs too 2008-11-24 21:30:21 -08:00
sock.c net: make /proc/net/protocols namespace aware 2008-11-19 15:14:01 -08:00
stream.c net: Rationalise email address: Network Specific Parts 2008-10-13 19:01:08 -07:00
sysctl_net_core.c net: '&' redux 2008-11-03 18:21:05 -08:00
user_dma.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-07-26 20:17:56 -07:00
utils.c printk ratelimiting rewrite 2008-07-25 10:53:29 -07:00