From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38556) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bO01a-0000ov-1o for qemu-devel@nongnu.org; Fri, 15 Jul 2016 06:07:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bO01W-0000RB-RT for qemu-devel@nongnu.org; Fri, 15 Jul 2016 06:07:13 -0400 Received: from mx-v6.kamp.de ([2a02:248:0:51::16]:43676 helo=mx01.kamp.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bO01W-0000R5-GR for qemu-devel@nongnu.org; Fri, 15 Jul 2016 06:07:10 -0400 Message-ID: <5788B5CC.8050305@kamp.de> Date: Fri, 15 Jul 2016 12:07:08 +0200 From: Peter Lieven MIME-Version: 1.0 References: <57888385.1080403@suse.com> <57889319.3030609@kamp.de> <5788A308.5010909@suse.com> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] Regression with commit 095497ffc66b7f031 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , Juergen Gross , xen-devel , "qemu-devel@nongnu.org" Cc: Gerd Hoffmann Am 15.07.2016 um 12:02 schrieb Paolo Bonzini: > > On 15/07/2016 10:47, Juergen Gross wrote: >> Nothing scaring and no real difference between working and not working >> variant. >> >> Meanwhile I've been digging a little bit deeper and found the reason: >> libxenstore is setting up a reader thread which is waiting for the >> watch to fire. With above commit the stack size of that thread (16kB) >> is too small. Setting it to 32kB made qemu work again. > This makes very little sense (not your fault)... The commit doesn't > change stack usage at all, TLS should not be on the stack. But we still allocate the VncPalette for every thread, right? Even if it has nothing todo with VNC. Peter