From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?D=E2niel?= Fraga Subject: Re: [PATCH] tcp FRTO: in-order-only "TCP proxy" fragility workaround (fwd) Date: Sun, 5 Oct 2008 22:27:17 -0300 Message-ID: <48e96979.0610c00a.5fcc.fffffdfd@mx.google.com> References: <48e3a4e5.0d1d640a.4cd3.06e9@mx.google.com> <48e3e835.0906c00a.2cd1.2fd1@mx.google.com> <48e4adb8.0807c00a.62b8.ffff87d6@mx.google.com> <48e4d63a.060ec00a.6a4e.ffff95bf@mx.google.com> <48e5364d.0603c00a.6e25.fffff993@mx.google.com> <48e8fef7.0610c00a.5fa2.ffffaab0@mx.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Cc: Ilpo =?ISO-8859-1?Q?J=E4rvinen?= , David Miller , Netdev To: Thomas Gleixner Return-path: Received: from yw-out-2324.google.com ([74.125.46.29]:26313 "EHLO yw-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751893AbYJFB1Y (ORCPT ); Sun, 5 Oct 2008 21:27:24 -0400 Received: by yw-out-2324.google.com with SMTP id 9so386159ywe.1 for ; Sun, 05 Oct 2008 18:27:22 -0700 (PDT) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Sun, 5 Oct 2008 20:09:22 +0200 (CEST) Thomas Gleixner wrote: > did you get the content of /debug/tracing/trace nevertheless ? > > The cat /debug/tracing/tracing_enabled == 1 might be just a user space > interface thingy. Hi Thomas, I added this one too (from my desktop): http://www.abusar.org/ftrace/trace-desktop.txt.bz2 I don't know if it will help, but if you could look the entries generated by sudo and fetchnews, they were stalled. sudo has a lot of: sudo-1081 [01] 34460.250986: _spin_lock+0x4/0x20 <-sys_close+0x3b/0x100 sudo-1081 [01] 34460.250986: sys_close+0x14/0x100 <-system_call_fastpath+0x16/0x1b sudo-1081 [01] 34460.250987: _spin_lock+0x4/0x20 <-sys_close+0x3b/0x100 sudo-1081 [01] 34460.250987: sys_close+0x14/0x100 <-system_call_fastpath+0x16/0x1b sudo-1081 [01] 34460.250987: _spin_lock+0x4/0x20 <-sys_close+0x3b/0x100 sudo-1081 [01] 34460.250987: sys_close+0x14/0x100 <-system_call_fastpath+0x16/0x1b sudo-1081 [01] 34460.250987: _spin_lock+0x4/0x20 <-sys_close+0x3b/0x100 sudo-1081 [01] 34460.250988: sys_close+0x14/0x100 <-system_call_fastpath+0x16/0x1b sudo-1081 [01] 34460.250988: _spin_lock+0x4/0x20 <-sys_close+0x3b/0x100 I don't know if it's normal... Thank you. --