From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:42530) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RQdBF-0004Xb-50 for qemu-devel@nongnu.org; Wed, 16 Nov 2011 05:57:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RQdB9-0006oV-4b for qemu-devel@nongnu.org; Wed, 16 Nov 2011 05:57:25 -0500 Received: from mx1.redhat.com ([209.132.183.28]:19917) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RQdB8-0006nq-Tt for qemu-devel@nongnu.org; Wed, 16 Nov 2011 05:57:19 -0500 Message-ID: <4EC397C5.6090806@redhat.com> Date: Wed, 16 Nov 2011 12:00:21 +0100 From: Kevin Wolf MIME-Version: 1.0 References: <20111116070138.21496.28742.malonedeb@soybean.canonical.com> <20111116070138.21496.28742.malonedeb@soybean.canonical.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Bug 891002] [NEW] windows mingw compiled qemu-system-x86_64 crash on startup List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: Bug 891002 <891002@bugs.launchpad.net>, qemu-devel@nongnu.org Am 16.11.2011 11:35, schrieb Stefan Hajnoczi: > On Wed, Nov 16, 2011 at 7:01 AM, humeafo <891002@bugs.launchpad.net> wrote: >> Public bug reported: >> >> qemu-1.0-rc2/cpu-exec.c:37 longjmp(env->jmp_env, 1); it seems that env->jmp_env destroyed, (gdb) p env->jmp_env >> $3 = {0, 0, 0, 36249608, 41418280, 5303318, 41418664, 0, 0, 0, 0, 0, 0, 0, 0, 0} > > Kevin: Is this similar to the issue you found with your mingw cross-compiler? The symptoms were different. I didn't get a broken TCG state but some internals of the Fiber used for coroutines must have been corrupted (SwitchFiber() crashed when dereferencing a null pointer, but the externally visible pointer that qemu passed to it was still ok). Maybe both could be symptoms of the same kind of memory corruption. Kevin