From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: -smp >=2 + -no-kvm-irqchip broken Date: Tue, 02 Feb 2010 19:52:46 +0100 Message-ID: <4B68747E.2090808@siemens.com> References: <4B685301.8070302@siemens.com> <20100202163919.GF18094@redhat.com> <4B68559F.4010501@siemens.com> <20100202164755.GG18094@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: kvm To: Gleb Natapov Return-path: Received: from thoth.sbs.de ([192.35.17.2]:24354 "EHLO thoth.sbs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756357Ab0BBSxH (ORCPT ); Tue, 2 Feb 2010 13:53:07 -0500 In-Reply-To: <20100202164755.GG18094@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Gleb Natapov wrote: > On Tue, Feb 02, 2010 at 05:41:03PM +0100, Jan Kiszka wrote: >> Gleb Natapov wrote: >>> On Tue, Feb 02, 2010 at 05:29:53PM +0100, Jan Kiszka wrote: >>>> Hi, >>>> >>>> notice while testing v2 of my vcpu state series: Starting SMP guests >>>> like Linux or Vista without in-kernel irqchip and with more than one CPU >>>> make them lock up during boot (Vista) or spit out messages like >>>> >>>> udevd[112] trap invalid opcode ip:7fc434630950 sp:7fff3cd3fcb8 error:0 >>>> in libc-2.9.so[7fc4345b2000+14f000] >>>> >>> Looks like interrupt is injected as exception. Can you try to bisect? >> Already started (as low prio background task), first looking for a good >> version. If you know a recent one, I'm a taker. >> > > Nope, didn't try no kernel irqchip for a long time. Kernel plays the key role here, either kvm-kmod or actually the kvm module: kvm-kmod-2.6.31.6 works, the 2.6.32 series and later do not. Digging deeper... Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux