From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Levon Subject: Re: 3.1/2 live migration panic Date: Sun, 20 Jan 2008 16:55:36 +0000 Message-ID: <20080120165536.GA25077@totally.trollied.org.uk> References: <20080117024248.GA5331@totally.trollied.org.uk> <20080117105312.GB15867@york.uk.xensource.com> <20080117222503.GA22568@totally.trollied.org.uk> <20080118094105.GA20334@york.uk.xensource.com> <20080118165324.GA21072@york.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20080118165324.GA21072@york.uk.xensource.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Tim Deegan Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Fri, Jan 18, 2008 at 04:53:24PM +0000, Tim Deegan wrote: > At 09:41 +0000 on 18 Jan (1200649265), Tim Deegan wrote: > > Either something has changed the sl4e or sl3e under our feet (surely not > > - we have the shadow lock), or it could still be a missing TLB flush. > > If we changed the sl4e (from one present entry to another) but didn't > > flush the TLB it could cause this. > > So: another patch for you; can you see if this makes the crashes go away? I'm afraid not: ffff828c80267a88 xpv:do_page_fault+13d ffff828c80267ac8 xpv:handle_exception+4b ffff828c80267af8 0xffff8300e2e44100 (in Xen) ffff828c80267be8 xpv:shadow_get_and_create_l1e+26b ffff828c80267c58 xpv:sh_page_fault__shadow_4_guest_4+598 ffff828c80267e58 xpv:paging_fault+3c ffff828c80267e88 xpv:fixup_page_fault+22b ffff828c80267ed8 xpv:do_page_fault+40 ffff828c80267f18 xpv:handle_exception+4b ffff828c80267f48 eb7c54b8 regards john