From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754206AbaIPONl (ORCPT ); Tue, 16 Sep 2014 10:13:41 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:46926 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753393AbaIPONk (ORCPT ); Tue, 16 Sep 2014 10:13:40 -0400 Message-ID: <54184580.8040305@oracle.com> Date: Tue, 16 Sep 2014 10:13:20 -0400 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: LKML CC: Linus Torvalds , Hannes Frederic Sowa , Andrew Morton Subject: Processes hang inside kernel built with gcc5 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Source-IP: ucsinet21.oracle.com [156.151.31.93] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, When booting a -next kernel with gcc5 it seems that some processes will hang on execution, while others will run just fine. I wasn't able to find exactly what part of the kernel causes this issue, but I've bisected gcc and found the offending commit: https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=213753 I've reported this issue to GCC (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63279). Thanks, Sasha