From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Pool Subject: Re: Sockets hang in FIN_WAIT1 state in linux 2.2.5 Date: Sat, 11 Jun 2005 12:03:48 +1000 Message-ID: <20050611020348.GA27334@sourcefrog.net> References: <20050610105808.13626.qmail@web30909.mail.mud.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: ak@muc.de, kuznet@ms2.inr.ac.ru, netdev@oss.sgi.com, Alan.Cox@linux.org Return-path: To: Pavan K Content-Disposition: inline In-Reply-To: <20050610105808.13626.qmail@web30909.mail.mud.yahoo.com> Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On 10 Jun 2005, Pavan K wrote: > Hi, > This is Pavan from India, a s/w engineer stuck in a TCP problem. We have a > legendary linux 2.2.5 kernel (redhat ) system which cant be replaced in my > company. I have noticed that my server stops ACK ing the SYN packets after some > time . Also when i netstat i can see lots of sockets hung in FIN_WAIT1 state. > Upon googling, I found ur mails in the mailing list. Sounds that you too had > similar problems. > So please suggest me any solution to this problem if you have. I am in a > critical stage to fix this bug. I cant upgrade my system to newer kernel since > it needs lot of code porting. I've heard similar reports from people running distcc on 2.2 kernels; after a long time the machine stops accepting new connections. If you can't upgrade the kernel your options are very limited: either work out the precise patch, or reboot your machines regularly. The second is probably easier. -- Martin