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: Wed, 18 Feb 2015 08:54:36 +0100 Message-ID: <54E4453C.8060508@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-wi0-f177.google.com ([209.85.212.177]:36498 "EHLO mail-wi0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751789AbbBRHyj (ORCPT ); Wed, 18 Feb 2015 02:54:39 -0500 Received: by mail-wi0-f177.google.com with SMTP id bs8so181659wib.4 for ; Tue, 17 Feb 2015 23:54:38 -0800 (PST) In-Reply-To: <20150217141333.GR26177@linutronix.de> Sender: linux-rt-users-owner@vger.kernel.org List-ID: Hi, 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? As said in=20 I can= =20 reproduce the issue pretty easy. Using the patch from that thread it=20 seems to be fixed. > Do you see the same problem with v3.18-RT? I do feel kind of stupid to ask this: Where would I find 3.18-RT? The=20 git only goes to 3.14... 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