From mboxrd@z Thu Jan 1 00:00:00 1970 From: "James Harper" Subject: RE: xm save + restore crashes Windows 2008 32-bit (4.0.2-rc2-pre) Date: Tue, 25 Jan 2011 20:28:27 +1100 Message-ID: References: <20110125092440.GA13241@whitby.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Return-path: Content-class: urn:content-classes:message In-Reply-To: <20110125092440.GA13241@whitby.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 >=20 > At 04:20 +0000 on 25 Jan (1295929205), James Harper wrote: > > Under the latest xen-4.0-testing, xm save + xm restore of Windows 2008 > > causes a BSoD on restore. This is without any PV drivers loaded. I > > haven't tested any other versions of windows. > > > > According to the debugger when I did have PV drivers loaded, the crash > > happens on the return to userspace. I haven't looked at the debugger > > with no PV drivers loaded. > > > > The bug check is 0x7F (0xD, 0, 0, 0) which is an unspecified exception. > > > > Is anyone else able to reproduce? >=20 > I saw a failure like this last month but when I came to look at it again > it seemed to be working. Are you testing on Intel or AMD hardware? >=20 AMD (cpuinfo below). I've just spent the last few hours updating my Intel box to test on that too. Save/resume was working but was only 3.4.1 so isn't really a comparison. Both are now same xen, tools, and kernel. I should know if the problem exists on intel very soon. I'm guessing not or I wouldn't be the first one posting about it... either that or there is something else going on. James (cpuinfo from in Dom0) processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 67 model name : Dual-Core AMD Opteron(tm) Processor 1210 stepping : 3 cpu MHz : 1799.999 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu de tsc msr pae mce cx8 apic mtrr mca cmov pat clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow up rep_good extd_apicid pni cx16 hypervisor lahf_lm cmp_legacy extapic cr8_legacy bogomips : 3599.99 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc