RE: [Xen-devel] Re: windows bluescreen after restore

["Guy Zana" <guy@xxxxxxxxxxxx>]

IRQL_NOT_LESS_OR_EQUAL happens when a kernel thread with high priority tries to 
access a virtual address which is paged to the disk (since the paging mechanism 
in windows runs in a lower priority of the thread). Most of the chances that 
this is around paging...

If you can reproduce the bug and it happens any time that you do save/restore, 
I would suggest to try to tun the guest with paging disabled (System Properties 
-> Advanced -> Performace [Settings] -> Advanced -> Virtual Memory [Change] -> 
Select "No paging file") and then try to do save&resote.

STOP 0x8E is KERNEL_MODE_EXCEPTION_NOT_HANDLED and could be a side effect...

Thanks,
Guy.

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Ian Pratt
> Sent: Wednesday, May 02, 2007 1:38 AM
> To: Amin; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-devel] Re: windows bluescreen after restore
> 
> > information below. Reinstalling windows didn't help. It 
> happens with 
> > all 2k3 and xp guests.
> > IRQL_NOT_LESS_OR_EQUAL
> > *** STOP: 0x0000000A (0x00000018, 0x00000002, 0x00000000, 
> 0x80523F59)
> 
> Are you doing save/restore cycles on the same machine, or 
> moving the image between machines?
> 
> At what point does the guest crash? Immediately after the 
> restore, or a few seconds later?
> 
> When you have a saved image that crashes on restore, it would 
> be interesting to try restoring the image again and see if 
> the guest crashes again (is the error the same?). Repeat 
> several times. This should give us a clue as to whether the 
> error is 'baked in' to the saved image, or occurs during restore.
> 
> Thanks,
> Ian
> 
>  
> > Thanks
> > Amin
> > 
> > 
> > xm info:
> > release                : 2.6.18-xen
> > version                : #1 SMP Mon Apr 30 17:10:57 CEST 2007
> > machine                : x86_64
> > nr_cpus                : 2
> > nr_nodes               : 1
> > sockets_per_node       : 1
> > cores_per_socket       : 2
> > threads_per_core       : 1
> > cpu_mhz                : 2800
> > hw_caps                :
> > bfebfbff:20100800:00000000:00000180:0000e43d:00000000:00000001
> > total_memory           : 4095
> > free_memory            : 526
> > xen_major              : 3
> > xen_minor              : 0
> > xen_extra              : -unstable
> > xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p 
> hvm-3.0-x86_32
> > hvm-3.0-x86_32p hvm-3.0-x86_64
> > xen_scheduler          : credit
> > xen_pagesize           : 4096
> > platform_params        : virt_start=0xffff800000000000
> > xen_changeset          : Sat Mar 31 19:02:09 2007 +0100
> > 14687:8f9ca49175ce
> > cc_compiler            : gcc version 4.1.1 20070105 (Red 
> Hat 4.1.1-51)
> > cc_compile_by          : amin
> > cc_compile_domain      :
> > cc_compile_date        : Mon Apr  2 19:33:17 CEST 2007
> > xend_config_format     : 4
> > 
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
> 

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