From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:52948) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sz5DZ-0007Jh-PJ for qemu-devel@nongnu.org; Wed, 08 Aug 2012 08:18:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Sz5DR-0008Ek-UH for qemu-devel@nongnu.org; Wed, 08 Aug 2012 08:18:29 -0400 Received: from isrv.corpit.ru ([86.62.121.231]:46471) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sz5DR-0008Dl-Mm for qemu-devel@nongnu.org; Wed, 08 Aug 2012 08:18:21 -0400 Message-ID: <50225901.7040101@msgid.tls.msk.ru> Date: Wed, 08 Aug 2012 16:18:09 +0400 From: Michael Tokarev MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] commit da57febfed "qdev: give all devices a canonical path" broke usb_del List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel , Paolo Bonzini , Peter Maydell , Anthony Liguori While dealing with USB issues today I noticed that usb_del monitor command is broken, attempting to delete any usb device immediately results in assertion failure: (qemu) usb_del 0.1 ERROR:qom/object.c:408:object_delete: assertion failed: (obj->ref == 0) Aborted I bisected this issue to commit: commit da57febfed7bad11be79f047b59719c38abd0712 Author: Paolo Bonzini Date: Tue Mar 27 18:38:47 2012 +0200 qdev: give all devices a canonical path A strong limitation of QOM right now is that unconverted ports (e.g. all...) do not give a canonical path to devices that are part of the board. This in turn makes it impossible to replace PROP_PTR with a QOM link for example. Reviewed-by: Anthony Liguori Signed-off-by: Paolo Bonzini Signed-off-by: Anthony Liguori The problem is still present in current qemu/master git. I'm not sure what to do with this. See also http://lists.gnu.org/archive/html/qemu-devel/2012-07/msg00199.html -- Peter Maydell reoprted this very issue a while back but no one replied. Thanks, /mjt