From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?UGhpbGlwcCBUw7Zsa2U=?= Subject: Re: kernel BUG at /build/linux-rt/kernel/locking/rtmutex.c:997! Date: Thu, 19 Feb 2015 15:25:55 +0100 Message-ID: <54E5F273.9020508@fos4x.de> References: <20150217141333.GR26177@linutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-rt-users To: Sebastian Andrzej Siewior Return-path: Received: from mail-we0-f173.google.com ([74.125.82.173]:39429 "EHLO mail-we0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752920AbbBSOZ6 (ORCPT ); Thu, 19 Feb 2015 09:25:58 -0500 Received: by wesx3 with SMTP id x3so57276wes.6 for ; Thu, 19 Feb 2015 06:25:57 -0800 (PST) In-Reply-To: <20150217141333.GR26177@linutronix.de> Sender: linux-rt-users-owner@vger.kernel.org List-ID: On 17.02.2015 15:13, Sebastian Andrzej Siewior wrote: >> I have a simple test that runs two iperf clients in parallel with th= e >> ltp network tests and it triggers a deadlock within a few minutes. >> This is 100% repeatable. I've tried this on different RT kernels and >> determined that prior to the following commit (which went into 3.10 >> upstream), the machine doesn't deadlock and seems to run just fine: >> >> fb52f40e085ef4074f1335672cd62c1f832af13b rtmutex: Handle deadlock >> detection smarter > > has this been resolved in the meantime? Do you see the same problem w= ith > v3.18-RT? I was not able to reproduce the issue with 3.18.7-rt1 in 24hours. I wil= l=20 repeat the test to be sure. Cheers, --=20 Philipp T=C3=B6lke, M.Sc. - Software-Developer - fos4X GmbH - www.fos4x= =2Ede Thalkirchner Str. 210, Geb. 6 - D-81371 M=C3=BCnchen; AG M=C3=BCnchen H= RB 189 218 T +49 89 999 542 58 - F +49 89 999 542 01 Managing Directors: Dr. Lars Hoffmann, Dr. Mathias M=C3=BCller -- To unsubscribe from this list: send the line "unsubscribe linux-rt-user= s" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html