Re: [linux-3.18 bisection] complete test-amd64-amd64-xl-shadow

[Paul Durrant <Paul.Durrant@citrix.com>]

> -----Original Message-----
> From: Wei Liu [mailto:wei.liu2@citrix.com]
> Sent: 24 August 2018 10:38
> To: Paul Durrant <Paul.Durrant@citrix.com>
> Cc: Wei Liu <wei.liu2@citrix.com>; osstest service owner <osstest-
> admin@xenproject.org>; xen-devel@lists.xenproject.org
> Subject: Re: [Xen-devel] [linux-3.18 bisection] complete test-amd64-amd64-
> xl-shadow
> 
> On Fri, Aug 24, 2018 at 10:35:52AM +0100, Paul Durrant wrote:
> > > -----Original Message-----
> > > From: Wei Liu [mailto:wei.liu2@citrix.com]
> > > Sent: 24 August 2018 10:35
> > > To: Paul Durrant <Paul.Durrant@citrix.com>
> > > Cc: Wei Liu <wei.liu2@citrix.com>; osstest service owner <osstest-
> > > admin@xenproject.org>; xen-devel@lists.xenproject.org
> > > Subject: Re: [Xen-devel] [linux-3.18 bisection] complete test-amd64-
> amd64-
> > > xl-shadow
> > >
> > > On Fri, Aug 24, 2018 at 10:30:26AM +0100, Paul Durrant wrote:
> > > > > > For bisection revision-tuple graph see:
> > > > > >    http://logs.test-lab.xenproject.org/osstest/results/bisect/linux-
> > > > > 3.18/test-amd64-amd64-xl-shadow.guest-start.html
> > > > > > Revision IDs in each graph node refer, respectively, to the Trees
> above.
> > > > >
> > > > > domainbuilder: detail: vcpu_x86_64: called
> > > > > domainbuilder: detail: vcpu_x86_64: cr3: pfn 0x2245 mfn 0x244845
> > > > > xenforeignmemory: error: ioctl failed: Invalid argument
> > > > > xc: error: panic: xc_dom_boot.c:420: xc_dom_gnttab_seed: failed to
> > > acquire
> > > > > d1 grant table [errno=22]
> > > > > : Internal error
> > > > > libxl: error: libxl_dom.c:750:libxl__build_dom: xc_dom_gnttab_init
> failed:
> > > > > Invalid argument
> > > > > domainbuilder: detail: xc_dom_release: called
> > > > >
> > > >
> > > > Taking a look now... Just forcing hap off doesn't generate an immediate
> > > repro so I'll have to have a closer look at the environment.
> > >
> > > Note the Linux branch is 3.18. I'm not sure if that really matters.
> > >
> >
> > I think that's the guest version, which should be irrelevant. Trying to figure
> out from the logs what dom0 is.
> 
> No. That's the host kernel.
> 

Ok. Got a repro with my base debian 4.9 dom0 kernel:

xenforeignmemory: error: ioctl failed: Invalid argument
xc: error: panic: xc_dom_boot.c:420: xc_dom_gnttab_seed: failed to acquire d1 grant table [errno=22]
: Internal error
libxl: error: libxl_dom.c:750:libxl__build_dom: xc_dom_gnttab_init failed: Invalid argument
domainbuilder: detail: xc_dom_release: called
libxl: error: libxl_create.c:1266:domcreate_rebuild_done: Domain 1:cannot (re-)build domain: -3
libxl: error: libxl_domain.c:1034:libxl__destroy_domid: Domain 1:Non-existant domain
libxl: error: libxl_domain.c:993:domain_destroy_callback: Domain 1:Unable to destroy guest
libxl: error: libxl_domain.c:920:domain_destroy_cb: Domain 1:Destruction of domain failed

I'm guessing it is a straight bug in the fall-back that's supposed to happen if privcmd doesn't do resource mapping.

  Paul

> Wei.
> 
> >
> >   Paul
> >
> > > Wei.

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