Re: [win-pv-devel] Multiple save/restore failing with windows 8.1 64 bit domU

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 01/04/2015 15:21, Paul Durrant ha scritto:
> > -----Original Message-----
> > From: Fabio Fantoni [mailto:fabio.fantoni@xxxxxxx]
> > Sent: 30 March 2015 12:00
> > To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> > Cc: Paul Durrant
> > Subject: Multiple save/restore failing with windows 8.1 64 bit domU
> >
> > I tried 2 times multiple save/restore (start domU, use it for some
> > minutes, do a save restore, use it, do another save/restore) and in both
> > case second save failed:
> The patch I posted this morning should fix this one for you.
>
>    Paul
Thanks.

Today I tried windows 10 pro 64 bit technical preview, clean install, pv 
drivers (today's build) install ok but after restore display (connecting 
with spice) seems freezed, waited 4-5 minutes without changes and after 
I tried also xl shudown but do nothing.
DomU have pv disk and network working, xl shutdown (before try 
save/restore) is working.
About save/restore on W8 I tried now with new pv build and with first 
save/restore is all ok but with on second now xl save/restore completes 
correctly but after restore freeze same as the W10 one (since first 
save/restore).
If you more informations/tests tell me and I'll post them.

Thanks for any reply and sorry for my bad english.



> > > xl -vvv save W8 /mnt/vm/save/W8
> > > libxl: debug: libxl.c:6705:libxl_retrieve_domain_configuration: no
> > > vtpm from xenstore for domain 40
> > > libxl: debug: libxl.c:6707:libxl_retrieve_domain_configuration: no pci
> > > from xenstore for domain 40
> > > Saving to /mnt/vm/save/W8 new xl format (info 0x1/0x0/1941)
> > > libxl: debug: libxl.c:953:libxl_domain_suspend: ao 0x68d910: create:
> > > how=(nil) callback=(nil) poller=0x68d970
> > > libxl: debug: libxl_dom.c:1573:libxl__toolstack_save: domain=40
> > > toolstack data size=49
> > > libxl: debug: libxl.c:975:libxl_domain_suspend: ao 0x68d910:
> > > inprogress: poller=0x68d970, flags=i
> > > libxl-save-helper: debug: starting save: Success
> > > xc: detail: xc_domain_save: starting save of domid 40
> > > libxl: debug: libxl_dom.c:1278:domain_suspend_callback_common: issuing
> > > PVHVM suspend request via XenBus control node
> > > libxl: debug: libxl_event.c:577:libxl__ev_xswatch_register: watch
> > > w=0x68dae0 wpath=/local/domain/40/control/shutdown token=3/0:
> > register
> > > slotnum=3
> > > libxl: debug: libxl_event.c:514:watchfd_callback: watch w=0x68dae0
> > > wpath=/local/domain/40/control/shutdown token=3/0: event
> > > epath=/local/domain/40/control/shutdown
> > > libxl: debug: libxl_event.c:615:libxl__ev_xswatch_deregister: watch
> > > w=0x68dae0 wpath=/local/domain/40/control/shutdown token=3/0:
> > > deregister slotnum=3
> > > libxl: debug:
> > > libxl_dom.c:1360:domain_suspend_common_pvcontrol_suspending: guest
> > > acknowledged suspend request
> > > libxl: debug: libxl_dom.c:1379:domain_suspend_common_wait_guest:
> > wait
> > > for the guest to suspend
> > > libxl: debug: libxl_event.c:577:libxl__ev_xswatch_register: watch
> > > w=0x68daf8 wpath=@releaseDomain token=3/1: register slotnum=3
> > > libxl: debug: libxl_event.c:514:watchfd_callback: watch w=0x68daf8
> > > wpath=@releaseDomain token=3/1: event epath=@releaseDomain
> > > libxl: error: libxl_dom.c:1451:suspend_common_wait_guest_timeout:
> > > guest did not suspend, timed out
> > > libxl: debug: libxl_event.c:615:libxl__ev_xswatch_deregister: watch
> > > w=0x68daf8 wpath=@releaseDomain token=3/1: deregister slotnum=3
> > > xc: error: Suspend request failed: Internal error
> > > xc: error: Domain appears not to have suspended: Internal error
> > > libxl-save-helper: xc_domain_save.c:2077: xc_domain_save: Assertion
> > > `rc' failed.
> > > libxl: error: libxl_utils.c:430:libxl_read_exactly: file/stream
> > > truncated reading ipc msg header from domain 40 save/restore helper
> > > stdout pipe
> > > libxl: error: libxl_exec.c:129:libxl_report_child_exitstatus: domain
> > > 40 save/restore helper [-1] died due to fatal signal Aborted
> > > libxl: error: libxl_dom.c:2035:remus_teardown_done: Remus: failed to
> > > teardown device for guest with domid 40, rc -3
> > > libxl: debug: libxl_event.c:1766:libxl__ao_complete: ao 0x68d910:
> > > complete, rc=-3
> > > libxl: debug: libxl_event.c:1738:libxl__ao__destroy: ao 0x68d910: destroy
> > > Failed to save domain, resuming domain
> > > libxl: debug: libxl.c:542:libxl_domain_resume: ao 0x68d910: create:
> > > how=(nil) callback=(nil) poller=0x68d970
> > > xc: error: Dom 40 not suspended: (shutdown 0, reason 255): Internal error
> > > libxl: error: libxl.c:511:libxl__domain_resume: xc_domain_resume
> > > failed for domain 40: Invalid argument
> > > libxl: debug: libxl_event.c:1766:libxl__ao_complete: ao 0x68d910:
> > > complete, rc=-3
> > > libxl: debug: libxl.c:545:libxl_domain_resume: ao 0x68d910:
> > > inprogress: poller=0x68d970, flags=ic
> > > libxl: debug: libxl_event.c:1738:libxl__ao__destroy: ao 0x68d910: destroy
> > > xc: debug: hypercall buffer: total allocations:29 total releases:29
> > > xc: debug: hypercall buffer: current allocations:0 maximum allocations:2
> > > xc: debug: hypercall buffer: cache current size:2
> > > xc: debug: hypercall buffer: cache hits:20 misses:2 toobig:7
> > If you need more informations/tests tell me and I'll post them.
> >
> > Thanks for any reply and sorry for my bad english.

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