cc'ing Colin and Yu for Hax info:
* Alex (1855...@bugs.launchpad.net) wrote:
> Public bug reported:
>
> I use qemu-i386 with IntelHaxm on Windows 10 x64 host with Windows 7 x86
> guest. I run the guest till OS loads and create a snapshot with savevm, then
> close qemu, run it again and try to load the snapshot with loadvm. The guest
> crashes or freezes. I dumped registers on snapshot creation and loading (in
> Haxm) and found that they are different.
> When returning from Haxm in hax_vcpu_hax_exec, there is no regular register
> read. I found hax_arch_get_registers function which reads registers from Haxm
> and is called from a synchronization procedure. I placed a breakpoint on it,
> ran qemu and found that it is hit one time during guest OS boot. Exactly
> these registers where saved in the snapshot.
>
> ** Affects: qemu
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are a member of qemu-
> devel-ml, which is subscribed to QEMU.
> https://bugs.launchpad.net/bugs/1855617
>
> Title:
> savevm with hax saves wrong register state
>
> Status in QEMU:
> New
>
> Bug description:
> I use qemu-i386 with IntelHaxm on Windows 10 x64 host with Windows 7 x86
> guest. I run the guest till OS loads and create a snapshot with savevm, then
> close qemu, run it again and try to load the snapshot with loadvm. The guest
> crashes or freezes. I dumped registers on snapshot creation and loading (in
> Haxm) and found that they are different.
> When returning from Haxm in hax_vcpu_hax_exec, there is no regular register
> read. I found hax_arch_get_registers function which reads registers from Haxm
> and is called from a synchronization procedure. I placed a breakpoint on it,
> ran qemu and found that it is hit one time during guest OS boot. Exactly
> these registers where saved in the snapshot.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/qemu/+bug/1855617/+subscriptions
>
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
