On Fri, Apr 23, 2021 at 01:22:34PM +0300, Sergey Kovalev wrote: > # Abstract > > After `xl save win win.mem` and then `xl restore win.hvm win.mem` > the Windows 10 VM remain frozen for about a minute. After the > minute it becomes responsive. > > During the freeze the OS remains semi-responsive: on `Ctrl+Shift+Esc` > press the wait cursor appears (blue circle indicator). > > This is an intermittent fault been reproduced only twice. > > # Technical notes > > It have been noticed that there were no timer interrupts during > the freeze. > > zaytse...@gmail.com has debugged the received Xen state file and > noticed that the flag HPET_TN_PERIODIC been set after unfreeze. > > Based on that he provided two Python scripts: one to check the > value and one to patch it. > > Both "broken" state files we have been detected and patched > successfully. > > # Other information > > ## Target machine > > ```bash > $ uname -a > Linux localhost 5.4.0-66-generic #74~18.04.2-Ubuntu SMP > Fri Feb 5 11:17:31 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux > ``` > > ## Xen version > > Build from source on tag RELEASE-4.12.4 > > ## OS version > > * Windows 10 build 1803 x64
Do you also run other versions of Windows, and in which case I assume you have never seen the issue on those, or it's this specific version the only that you use? Thanks, Roger.
