James Harper
2008-Nov-09 06:58 UTC
[Xen-devel] force ''xm save'' to use non-PVonHVM method even when PVonHVM drivers are running
I''m trying to figure out where and why the GPLPV are often not recovering after a ''xm save'' ''xm restore'' cycle. After the ''xm restore'' the system hangs hard. I can use the windows debugger, but because of the busy waiting that is done around the shutdown hypercall the windows debugger runs horribly slowly. What I''d like to do instead is to dump the domain in it''s broken state out to a file and see if I can extract something out of it that way. Unfortunately, because PV drivers are installed, ''xm save'' wants to use them to do the suspend. Any suggestions? If I tinker with the ''save'' code that xm uses and comment out the right parts of the code will it work? Thanks James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Keir Fraser
2008-Nov-09 09:01 UTC
Re: [Xen-devel] force ''xm save'' to use non-PVonHVM method even when PVonHVM drivers are running
On 9/11/08 06:58, "James Harper" <james.harper@bendigoit.com.au> wrote:> What I''d like to do instead is to dump the domain in it''s broken state > out to a file and see if I can extract something out of it that way. > Unfortunately, because PV drivers are installed, ''xm save'' wants to use > them to do the suspend. > > Any suggestions? If I tinker with the ''save'' code that xm uses and > comment out the right parts of the code will it work?Yes, if you take the tools path that issues a remote immediate shutdown request to the hypervisor, that should work okay. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel