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[Qemu-devel] [Bug 521202] Re: Windows XP x64 / 2008 Server x64 broken on
From: |
Thomas Huth |
Subject: |
[Qemu-devel] [Bug 521202] Re: Windows XP x64 / 2008 Server x64 broken on 32-bit hosts with QEMU > 0.9.0 |
Date: |
Mon, 07 Nov 2016 18:28:40 -0000 |
Can you still reproduce this bug with the latest version of QEMU?
** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/521202
Title:
Windows XP x64 / 2008 Server x64 broken on 32-bit hosts with QEMU >
0.9.0
Status in QEMU:
Incomplete
Bug description:
QEMU >0.9.0 fails to install/run 64-bit Windows XP guests on 32-bit
hosts. This is mentioned here: http://qemu-
forum.ipi.fi/viewtopic.php?f=5&t=4625 . As explained there, 0.9.0
manages to install and run XP64 fine, if somewhat slowly. The host is
an actual 32-bit CPU (Athlon XP), although I've tested it and
confirmed the bug to occur on a Core2 Duo CPU running in 32-bit mode
with KVM disabled. It's impossible to test with KVM enabled, as this
causes Windows to detect a 32-bit CPU and refuse to run.
When installing, the installer hangs at the "Setup is starting
Windows" step. An attempt at running a converted VBox image reveals
the problem lies somewhere in the ACPI -- in safe mode, the boot
sequence gets to loading ACPI tables, then hangs indefinitely.
Interestingly enough, the emulator itself runs fine, you can interact
with the monitor etc., but the virtual CPU appears to stop; there's a
marked point in "log cpu" output after which nothing comes. Disabling
ACPI predictably does nothing to help, as in this case Windows refuses
to run.
I've tested with several versions, and 0.9.1 is the first one to
break. The bug is still present in 0.11 and 0.12 as packaged by
Ubuntu.
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- [Qemu-devel] [Bug 521202] Re: Windows XP x64 / 2008 Server x64 broken on 32-bit hosts with QEMU > 0.9.0,
Thomas Huth <=