From mboxrd@z Thu Jan 1 00:00:00 1970 From: crquan@gmail.com Subject: strange getrusage timer problem with rt-kernel Date: Wed, 26 Nov 2008 11:52:28 +0800 Message-ID: <492cc7d4.044e6e0a.165f.56dc@mx.google.com> To: linux-rt-users@vger.kernel.org Return-path: Received: from ti-out-0910.google.com ([209.85.142.186]:11984 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752222AbYKZDvw (ORCPT ); Tue, 25 Nov 2008 22:51:52 -0500 Received: by ti-out-0910.google.com with SMTP id b6so131691tic.23 for ; Tue, 25 Nov 2008 19:51:50 -0800 (PST) Sender: linux-rt-users-owner@vger.kernel.org List-ID: I'm testing 2.6.26.6-rt11 (is that the latest?) kernel, using tiotest from tiobench (http://sourceforge.net/projects/tiobench/), a classic multi-thread IO stress tool, it reported a strange problem, with: root:~/tiobench# time ./tiotest -R -d /dev/mapper/dg5-lv2 -t 1 -f 1000 -r 102400 tiotest: tiotest.c:609: add_timer: Assertion end_time->tv_sec >= start_time->tv_sec' failed.? this problem never happened in mainstream kernels. Regards, -- Cheng Renquan, Shenzhen, China