From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42665) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YrTeJ-00035O-0G for qemu-devel@nongnu.org; Sun, 10 May 2015 12:00:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YrTa4-0001yW-5J for qemu-devel@nongnu.org; Sun, 10 May 2015 11:55:55 -0400 Received: from mail-wi0-x22e.google.com ([2a00:1450:400c:c05::22e]:35102) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YrTa3-0001yR-V5 for qemu-devel@nongnu.org; Sun, 10 May 2015 11:55:52 -0400 Received: by widdi4 with SMTP id di4so79391805wid.0 for ; Sun, 10 May 2015 08:55:51 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <554F7F84.6070700@redhat.com> Date: Sun, 10 May 2015 17:55:48 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <18C7C30B-DC02-4CF1-8190-EFB063692272@gmail.com> <554F7124.8020900@redhat.com> In-Reply-To: <554F7124.8020900@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] Help with deadlock when using sound List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Programmingkid , qemu-devel qemu-devel On 10/05/2015 16:54, Paolo Bonzini wrote: > Reproduced with a FreeDOS image from QEMU Advent Calendar. It locks up > as soon as you type "beep". > > It works with the PulseAudio and ALSA backends, but it doesn't with the > SDL backend, even on Linux. > > Also, it deadlocks even with KVM enabled. Hmm, looks like SDL audio is broken; it's not pcspk's fault. I get an instant deadlock from QEMU_AUDIO_DRV=sdl qemu-system-x86_64 -soundhw gus /mnt/vm/freedos.raw even if I add "-display sdl", "-monitor stdio", etc. Paolo