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 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:53616) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SyMAt-0006Ga-Nu for qemu-devel@nongnu.org; Mon, 06 Aug 2012 08:12:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SyMAn-0005aS-W6 for qemu-devel@nongnu.org; Mon, 06 Aug 2012 08:12:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:26965) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SyMAn-0005a3-OK for qemu-devel@nongnu.org; Mon, 06 Aug 2012 08:12:37 -0400 Message-ID: <501FB4A8.6080609@redhat.com> Date: Mon, 06 Aug 2012 15:12:24 +0300 From: Avi Kivity MIME-Version: 1.0 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> In-Reply-To: <501F846C.50903@profihost.ag> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] KVM segfaults with 3.5 while installing ubuntu 12.04 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Priebe - Profihost AG Cc: Kevin Wolf , Stefan Hajnoczi , kvm@vger.kernel.org, mtosatti@redhat.com, qemu-devel , linux-kernel 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