From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Fw: [Bug 59971] New: tcp_info::tcpi_last_ack_recv = 0xFFFFFFF6 Date: Thu, 20 Jun 2013 08:24:25 -0700 Message-ID: <20130620082425.3bb6266a@nehalam.linuxnetplumber.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from mail-pa0-f45.google.com ([209.85.220.45]:43021 "EHLO mail-pa0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757957Ab3FTPY3 (ORCPT ); Thu, 20 Jun 2013 11:24:29 -0400 Received: by mail-pa0-f45.google.com with SMTP id bi5so6428753pad.32 for ; Thu, 20 Jun 2013 08:24:29 -0700 (PDT) Received: from nehalam.linuxnetplumber.net (static-50-53-71-109.bvtn.or.frontiernet.net. [50.53.71.109]) by mx.google.com with ESMTPSA id re16sm1206377pac.16.2013.06.20.08.24.27 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 20 Jun 2013 08:24:28 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: Begin forwarded message: Date: Thu, 20 Jun 2013 04:20:40 -0700 From: "bugzilla-daemon@bugzilla.kernel.org" To: "stephen@networkplumber.org" Subject: [Bug 59971] New: tcp_info::tcpi_last_ack_recv = 0xFFFFFFF6 https://bugzilla.kernel.org/show_bug.cgi?id=59971 Summary: tcp_info::tcpi_last_ack_recv = 0xFFFFFFF6 Product: Networking Version: 2.5 Kernel Version: 2.6.37 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Other AssignedTo: shemminger@linux-foundation.org ReportedBy: _kobold@ukr.net Regression: No tcp_info::tcpi_last_ack_recv becomes "negative" sometimes. -10 msec or 1 jiffy in my case. Probably due to lack of synchronization in the kernel. struct tcp_info tinfo = {0}; socklen_t len = sizeof(tinfo); if (getsockopt(thesocket, SOL_TCP, TCP_INFO, (void*)&tinfo, &len) == 0) printf("%u\n", tinfo.tcpi_last_ack_recv); -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.