From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 15A30C04AB5 for ; Mon, 3 Jun 2019 16:38:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAC22272FF for ; Mon, 3 Jun 2019 16:38:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729365AbfFCQi4 convert rfc822-to-8bit (ORCPT ); Mon, 3 Jun 2019 12:38:56 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:37374 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727065AbfFCQi4 (ORCPT ); Mon, 3 Jun 2019 12:38:56 -0400 Received: from bigeasy by Galois.linutronix.de with local (Exim 4.80) (envelope-from ) id 1hXpz3-000471-Cc; Mon, 03 Jun 2019 18:38:53 +0200 Date: Mon, 3 Jun 2019 18:38:53 +0200 From: Sebastian Andrzej Siewior To: He Zhe Cc: linux-rt-users@vger.kernel.org Subject: Re: glibc nptl tst-robustpi8.c crashes since v5.0.3-rt1 Message-ID: <20190603163853.psno24qkyrjwspg2@linutronix.de> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8BIT In-Reply-To: User-Agent: NeoMutt/20180716 Sender: linux-rt-users-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org On 2019-05-29 18:20:56 [+0800], He Zhe wrote: > Hi, Hi, > Since v5.0.3-rt1, glibc/nptl/tst-robustpi8.c causes the following crash. > https://github.com/lattera/glibc/blob/master/nptl/tst-robustpi8.c thank you for the report. > root@intel-x86-64:~# ./tst-robustpi8 > 007: ------------[ cut here ]------------ > 007: kernel BUG at /buildarea2/zhe/repo/linux-rt-devel/kernel/locking/rtmutex.c:1336! … > 007: Call Trace: > 007:  rt_spin_lock_slowlock_locked+0x87/0x230 > 007:  rt_spin_lock_slowlock+0x67/0xa0 > 007:  rt_spin_lock+0x38/0x40 > 007:  ? futex_lock_pi+0x2cd/0x490 > 007:  futex_lock_pi+0x2cd/0x490 > 007:  do_futex+0x330/0xc40 > 007:  __se_sys_futex+0x7f/0x170 … this is due to commit 1a1fb985f2e2b ("futex: Handle early deadlock return correctly") let me see what I can do… > Zhe Sebastian