From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: KVM segfaults with 3.5 while installing ubuntu 12.04 Date: Mon, 06 Aug 2012 15:12:24 +0300 Message-ID: <501FB4A8.6080609@redhat.com> References: <5017C8A0.60506@profihost.ag> <5017F19E.4070308@redhat.com> <501817C9.6090405@profihost.ag> <5018EC7D.9090702@redhat.com> <5018F5BB.9070500@profihost.ag> <5018F7E6.4020909@redhat.com> <5018F9F6.70307@profihost.ag> <5018FC9B.8040808@redhat.com> <501E4615.7060801@profihost.ag> <501E4AFD.3020806@redhat.com> <501E96BB.5060702@profihost.ag> <501EC2E2.8010802@profihost.ag> <501F8226.9090500@redhat.com> <501F846C.50903@profihost.ag> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Cc: mtosatti@redhat.com, kvm@vger.kernel.org, qemu-devel , linux-kernel , Kevin Wolf , Stefan Hajnoczi To: Stefan Priebe - Profihost AG Return-path: In-Reply-To: <501F846C.50903@profihost.ag> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 08/06/2012 11:46 AM, Stefan Priebe - Profihost AG wrote: > But still i got the segfault and core dump - this is my main problem? I > mean qemu-kvm master isn't declared as stable. So i don't care about the > slowness here. > > What can we do about the core dump and crash? Okay, I reproduced it; it seems aio=native is the culprit. You can try aio=threads as a workaround. Copying some relevant people (context: aio=native on qemu-kvm-1.1.1 segfaults pretty early during guest install) -- error compiling committee.c: too many arguments to function