From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37939) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYE9K-00047R-I2 for qemu-devel@nongnu.org; Wed, 18 Mar 2015 09:36:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YYE9F-00014n-JP for qemu-devel@nongnu.org; Wed, 18 Mar 2015 09:36:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43075) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYE9F-00014j-CO for qemu-devel@nongnu.org; Wed, 18 Mar 2015 09:36:37 -0400 Message-ID: <55097F59.9000608@redhat.com> Date: Wed, 18 Mar 2015 14:36:25 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <159b26f5e95fff02f4f5eaff5f06e605e6f28688.1426507460.git.peter.crosthwaite@xilinx.com> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH target-arm v3 04/15] arm: xlnx-zynqmp: Add GIC List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Crosthwaite , Alistair Francis Cc: Edgar Iglesias , Peter Maydell , zach.pfeffer@xilinx.com, "qemu-devel@nongnu.org Developers" , "michals@xilinx.com" , =?UTF-8?B?QWxleCBCZW5uw6ll?= On 18/03/2015 14:11, Peter Crosthwaite wrote: > So I actually bisected this as a recent regression on: > > commit a464982499b2f637f6699e3d03e0a9d2e0b5288b (refs/bisect/bad) > Author: Paolo Bonzini > Date: Wed Feb 11 17:15:18 2015 +0100 > rcu: run RCU callbacks under the BQL > This needs to go away sooner or later, but one complication is the > complex VFIO data structures that are modified in instance_finalize. > Take a shortcut for now. > > Reviewed-by: Michael Roth > Tested-by: Michael Roth > Signed-off-by: Paolo Bonzini > > Segfault backtrace: Please rebase to 2.3.0-rc0 to weed out the two problems related to early qemu_mutex_lock_iothread() (this one, and the breakage of -daemonize). Paolo