Re: [Qemu-devel] [Bug 1635339] Re: qxl_pre_save assertion failure on vm "save"

[Gerd Hoffmann]

On Mo, 2017-04-10 at 11:56 +0000, Frediano Ziglio wrote:
> Is this problem limited to commands or also to data attached to the commands?

Everything which contains QXLReleaseInfo and is released via release
ring.

> To me looks like a limitation Qemu should remove on the long run.

That is an option, but it is tricky backward-compatibility wise.
What was the reason to move the commands to bar1?

cheers,
  Gerd

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https://bugs.launchpad.net/bugs/1635339

Title:
  qxl_pre_save assertion failure on vm "save"

Status in QEMU:
  Confirmed

Bug description:
  When I try and save my Windows 10 VM, I see an assertion failure, and
  the machine is shut down.

  I see the following in the log:

  main_channel_handle_parsed: agent start
  qemu-system-x86_64: /build/qemu-Zwynhi/qemu-2.5+dfsg/hw/display/qxl.c:2101: 
qxl_pre_save: Assertion `d->last_release_offset < d->vga.vram_size' failed.
  2016-10-20 11:52:42.713+0000: shutting down

  Please let me know what other information would be relevant!

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