Re: [Xen-devel] [PATCH v3 00/18] libxl: domain save/restore: run in a separate process

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2012-06-22 at 14:39 +0100, Ian Campbell wrote:
> On Fri, 2012-06-15 at 14:40 +0100, Stefano Stabellini wrote:
> > On Fri, 15 Jun 2012, Ian Jackson wrote:
> > > This is v4 of my series to asyncify save/restore.  All comments have
> > > been addressed.
> > > 
> > > I have retested this with HVM (RHEL) and PV guests, for both localhost
> > > migration and save/restore.  RHEL seems to have some unreliability
> > > which occurs with the baseline too.  I was not able to test stub dms
> > > at all because when trying to boot my RHEL guest with a stub dm the dm
> > > domain immediately crashed.
> > 
> > IanC, didn't you test xen-unstable with stubdoms not too long ago?
> > 
> > In any case we should probably add "working stubdoms" to the blocker list.
> 
> FWIW I just netbooted my Debian HVM guest with a stubdom on latest tree
> and it is indeed knackered.

BTW before I did that I ran it with modern toolstack but whatever old
stubdom I had lying around and it was fine so I guess this must be a
stubdom side issue for once!

I get these logs:
        xs_watch(/local/domain/0/backend/console/69, be:0x1470e9:69:0x15d3e0)
        xs_directory(/local/domain/0/backend/console/69): EACCES
        xs_watch(/local/domain/0/backend/vkbd/69, be:0x14211d:69:0x15d320)
        xs_directory(/local/domain/0/backend/vkbd/69): EACCES
        (XEN) event_channel.c:232:d70 EVTCHNOP failure: domain 69, error -22
        ERROR: bind_interdomain failed with rc=-22close(0)
        GPF rip: 0xff9a4, error_code=0
        Thread: main
        RIP: e030:[<00000000000ff9a4>]
        RSP: e02b:00000000005cf748  EFLAGS: 00010202
        RAX: 2f302f6e69616d6f RBX: 0000002002009e20 RCX: 0000000000000e09
        RDX: 0000000000000000 RSI: 00000000deadbeef RDI: 2f302f6e69616d6f
        RBP: 00000000005cf748 R08: 0000000000000608 R09: 000000000000000a
        R10: 000000000056f000 R11: fefefefefefefeff R12: 0000000000161980
        R13: 0000000000000000 R14: 0000000000162590 R15: 0000000000000000
        base is 0x5cf748 caller is 0xe587d
        base is 0x5cf798 caller is 0xe5a00
        base is 0x5cf7a8 caller is 0xe2686
        base is 0x5cf7c8 caller is 0x106e5d
        base is 0x5cf7e8 caller is 0xf7b60
        base is 0x5cf818 caller is 0xf9b75
        base is 0x5cf868 caller is 0xf7ab4
        base is 0x5cf888 caller is 0x2b6ee
        base is 0x5cf958 caller is 0x2c369
        base is 0x5cf978 caller is 0x1da01
        base is 0x5cf9e8 caller is 0x8cf9
        base is 0x5cfdf8 caller is 0xdabcb
        base is 0x5cffe8 caller is 0x33da

Ian.


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