From: bert hubert <bert.hubert@netherlabs.nl>
To: netdev@vger.kernel.org
Subject: 2.6.18-rc[67] crashes in TCP ack handling
Date: Sun, 17 Sep 2006 00:19:48 +0200 [thread overview]
Message-ID: <20060916221948.GA12421@outpost.ds9a.nl> (raw)
The bad news is that I haven't yet been able to capture traces.
Once every three days or so I get a crash of 2.6.18-rc[67] which
*probably* end in tcp_ack(), but I don't have the exact dump.
My .config is indeed heavy on TCP congestion stuff:
$ zcat /proc/config.gz | grep -i tcp
CONFIG_INET_TCP_DIAG=y
CONFIG_TCP_CONG_ADVANCED=y
# TCP congestion control
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=y
CONFIG_TCP_CONG_HTCP=y
CONFIG_TCP_CONG_HSTCP=y
CONFIG_TCP_CONG_HYBLA=y
CONFIG_TCP_CONG_VEGAS=y
CONFIG_TCP_CONG_SCALABLE=y
CONFIG_TCP_CONG_LP=y
CONFIG_TCP_CONG_VENO=y
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_IP_NF_TARGET_TCPMSS=y
# CONFIG_NET_TCPPROBE is not set
# CONFIG_ISCSI_TCP is not set
# CONFIG_NFSD_TCP is not set
However, I haven't specifically configured anything.
$ dmesg | grep -i tcp
[ 33.106317] TCP established hash table entries: 131072 (order: 8, 1048576
bytes)
[ 33.107086] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
[ 33.107476] TCP: Hash tables configured (established 131072 bind 65536)
[ 33.107605] TCP reno registered
[ 40.985770] IPVS: Registered protocols (TCP, UDP, AH, ESP)
[ 41.105710] TCP bic registered
[ 41.105833] TCP cubic registered
[ 41.105957] TCP westwood registered
[ 41.106080] TCP highspeed registered
[ 41.106203] TCP hybla registered
[ 41.106328] TCP htcp registered
[ 41.106452] TCP vegas registered
[ 41.106574] TCP veno registered
[ 41.106698] TCP scalable registered
[ 41.106822] TCP lp registered
$ cat ipv4/tcp_congestion_control
lp
I hope to follow up this message with the actual backtrace, but this is
already an heads up.
Sorry for not yet being able to be more specific.
bert
--
http://www.PowerDNS.com Open source, database driven DNS Software
http://netherlabs.nl Open and Closed source services
next reply other threads:[~2006-09-16 22:19 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-16 22:19 bert hubert [this message]
2006-09-16 23:32 ` 2.6.18-rc[67] crashes in TCP ack handling Stephen Hemminger
2006-09-17 10:11 ` bert hubert
2006-09-17 11:53 ` Stephen Hemminger
[not found] ` <20060917122153.GA2932@outpost.ds9a.nl>
2006-09-17 13:11 ` tcp congestion policy selection link order fragile Stephen Hemminger
2006-09-17 14:51 ` bert hubert
2006-09-18 23:41 ` Stephen Hemminger
2006-09-18 8:51 ` David Miller
2006-09-18 9:59 ` bert hubert
2006-09-18 14:06 ` David Miller
2006-09-18 15:40 ` bert hubert
2006-09-18 18:53 ` David Miller
2006-09-18 19:52 ` bert hubert
2006-09-19 4:41 ` [PATCH] tcp: set congestion default through Kconfig Stephen Hemminger
2006-09-19 5:08 ` Ian McDonald
2006-09-19 10:03 ` Andi Kleen
2006-09-19 12:35 ` Hagen Paul Pfeifer
2006-09-19 16:10 ` David Miller
2006-09-19 17:28 ` Stephen Hemminger
2006-09-19 15:29 ` Stephen Hemminger
2006-09-19 19:29 ` David Miller
2006-09-19 19:30 ` David Miller
2006-09-19 19:33 ` David Miller
2006-09-19 19:39 ` Stephen Hemminger
2006-09-19 20:41 ` [PATCH] tcp: set congestion default through Kconfig (v2) Stephen Hemminger
2006-09-19 21:20 ` David Miller
2006-09-19 21:32 ` [PATCH] tcp: simpler bic default Stephen Hemminger
2006-09-19 21:43 ` bert hubert
2006-09-19 22:44 ` David Miller
2006-09-19 23:02 ` Stephen Hemminger
2006-09-19 23:04 ` David Miller
2006-09-19 23:23 ` Stephen Hemminger
2006-09-20 8:17 ` bert hubert
2006-09-20 20:28 ` [PATCH] tcp: default congestion control menu Stephen Hemminger
2006-09-25 3:12 ` David Miller
2006-09-20 20:32 ` [PATCH] tcp: make cubic the default Stephen Hemminger
2006-09-23 11:14 ` tested: " bert hubert
2006-09-23 20:00 ` David Miller
2006-09-25 3:13 ` David Miller
2006-09-19 21:38 ` [PATCH] tcp: set congestion default through Kconfig (v2) bert hubert
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