From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53183) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1ckP-0006qt-9I for qemu-devel@nongnu.org; Wed, 25 Nov 2015 11:16:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a1ckK-0005qg-AB for qemu-devel@nongnu.org; Wed, 25 Nov 2015 11:16:45 -0500 Received: from mx1.redhat.com ([209.132.183.28]:60496) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1ckK-0005qc-4K for qemu-devel@nongnu.org; Wed, 25 Nov 2015 11:16:40 -0500 References: <565485A0.5090902@sysgo.com> <5654883F.9050509@redhat.com> <56557AA2.9080100@sysgo.com> <5655AA1F.8060906@sysgo.com> <5655B706.6060306@redhat.com> <5655BFEA.50407@sysgo.com> <5655C781.8090201@redhat.com> <5655D848.9050104@sysgo.com> From: Paolo Bonzini Message-ID: <5655DEE2.20700@redhat.com> Date: Wed, 25 Nov 2015 17:16:34 +0100 MIME-Version: 1.0 In-Reply-To: <5655D848.9050104@sysgo.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v2] qemu_mutex_iothread_locked not correctly synchronized List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: David Engraf , qemu-devel@nongnu.org Cc: Stefan Weil , Fam Zheng On 25/11/2015 16:48, David Engraf wrote: > > Indeed, TLS handling is broken. The address of iothread_locked is always > the same between threads and I can see that a different thread sets > iothread_locked to false, thus my current thread uses an invalid state. > I will have to check why my compiler produces invalid TLS code. That rings a bell, I think there are different CRT libraries or something like that. Stefan, what would break TLS under Windows? Paolo