From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nivedita Singhvi Subject: Re: Dump of TCP hang in established state Date: Wed, 21 May 2003 11:58:34 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <3ECBCC5A.6090406@us.ibm.com> References: <3ECBB522.9080101@us.ibm.com> <1053545510.9476.9.camel@tux.rsn.bth.se> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: James Morris , netdev@oss.sgi.com Return-path: To: Martin Josefsson In-Reply-To: <1053545510.9476.9.camel@tux.rsn.bth.se> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Martin Josefsson wrote: >>Can anyone tell me what to do to reproduce this? > > I've now tried my distcc stuff again. With TCP_CORK enabled I don't have > any problem reproducing the hangs, 1 in 3 shows at least one hang. But > so far I havn't been able to reproduce it with TCP_CORK disabled. I'll > keep compiling a few more times, I've only run 10 compilations so far. > > When using distcc you know you have a hang when it stops at the > object-linking for a while waiting for one process to finish. > Thanks, Martin.. Which kernels are you currently using? Were you able to reproduce this with 2.5.69 at both ends? I just took a look at your previous trace. I'n not absolutely sure my previous report of a hang is the same issue, only because in that case the connection did not revive, whereas in your case after the 1 second approximate stall, it continues.. (havent stepped through everything yet). thanks, Nivedita