Re: [Xen-API] Problem while resuming VM

[Jon Ludlam <jonathan.ludlam@xxxxxxxxxx>]

On Wed, Apr 22, 2015 at 09:29:16AM +0000, Ronald Liu wrote:
> Thx for the reply.
> I did try your methods.And still got the same internal error. Here is the
> code after adding start/stop routine
> 
> if (!xen_vm_hard_shutdown(session,
> task.target_vm->vm)){xen_session_clear_error(session);}
> if (!xen_vm_revert(session, task.target_vm->current_snapshot->ref)){res =
> 1;break;}
> if (!xen_vm_resume(session, task.target_vm->vm, false, true)){res=2;}
> if (res==2){
> xen_session_clear_error(session);
> if (!xen_vm_hard_shutdown(session,
> task.target_vm->vm)){xen_session_clear_error(session);}
> if (!xen_vm_start(session,
> task.target_vm->vm,false,true)){xen_session_clear_error(session);}
> if (!xen_vm_hard_shutdown(session,
> task.target_vm->vm)){xen_session_clear_error(session);}
> }
> if (!xen_vm_revert(session, task.target_vm->current_snapshot->ref)){res =
> 1;break;}
> if (!xen_vm_resume(session, task.target_vm->vm, false, true)){res=2;break;}
> 
> Did I do something wrong?
> PS: I failed to find any error-raiseing code in xapi_xenops.ml:Line 2093 on
> the master branch in Github. How can I find out which version(commit) of
> the XAPI source code is corresponding to the one running on my Xenserver?
>

The code can be found by way of here: 
https://github.com/xenserver/xen-api/releases

going to the XS65 release tag gets us here:
https://github.com/xenserver/xen-api/blob/3e4e56e61ee5eb107c4087f6b7cbb9ef9242d1bc/ocaml/xapi/xapi_xenops.ml#L2093

which is unfortunately a bit unhelpful. The upshot is that the VM has
probably died very quickly after resuming. Any idea why that might happen?

Jon


> Thanks any.
> 
> On Wed, 15 Apr 2015 at 18:22 Renato Fontana <skyrenato@xxxxxxxxx> wrote:
> 
> > Try to start/stop it manually via the API to troubleshoot.
> >
> > I'm also using xenserver for malware processing purposes. One guy recently
> > commited a new cuckoo xenserver machinery that does all of that
> > starting/stopping process. It might be handy for you:
> > https://github.com/cuckoobox/cuckoo/blob/master/modules/machinery/xenserver.py
> >
> > Cheers,
> >
> >
> > 2015-04-15 8:25 GMT+02:00 Ronald Liu <lzsdc@xxxxxxxx>:
> >
> >> Hi.
> >>
> >> I'm working on a malware detecting system which need to revert  and
> >> resume VM from checkpoint frequently. This error occured when resuming a VM
> >> which is just reverted.
> >>
> >> Internal error: File "xapi_xenops.ml", line 2093, characters 3-9:
> >> Assertion failed
> >>
> >> I couldn't find useful info in xensource.log or audit.log. How can I
> >> determine whether it's a problem in my code or in XenServer?
> >> It's running on XenServer 6.5 via C API.
> >>
> >> Thanks
> >>
> >> _______________________________________________
> >> Xen-api mailing list
> >> Xen-api@xxxxxxxxxxxxx
> >> http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api
> >>
> >>
> >

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