From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13172 invoked by alias); 7 Jun 2011 08:15:56 -0000 Received: (qmail 13159 invoked by uid 22791); 7 Jun 2011 08:15:54 -0000 X-SWARE-Spam-Status: No, hits=-2.7 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 07 Jun 2011 08:15:40 +0000 From: "andi-gcc at firstfloor dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/49282] malloc corruption in large lto1-wpa run during inline edge heap resize X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: andi-gcc at firstfloor dot org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Date: Tue, 07 Jun 2011 08:15:00 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2011-06/txt/msg00507.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49282 --- Comment #5 from Andi Kleen 2011-06-07 08:15:35 UTC --- It seems GCOV is not the only cause. I just got the malloc corruption again when building for 32bit (instead of 64bit), but still with gcov disabled. So probably for the other build disabling gcov just hid it. lto1: malloc.c:3551: munmap_chunk: Assertion `ret == 0' failed. lto1: internal compiler error: Aborted Very nasty. Any ideas how to track that down? Is valgrind supposed to work?