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[Bug 1829498] Re: window 8 stuck during boot on Qemu
From: |
Thomas Huth |
Subject: |
[Bug 1829498] Re: window 8 stuck during boot on Qemu |
Date: |
Fri, 18 Jun 2021 16:33:58 -0000 |
This is an automated cleanup. This bug report has been moved to QEMU's
new bug tracker on gitlab.com and thus gets marked as 'expired' now.
Please continue with the discussion here:
https://gitlab.com/qemu-project/qemu/-/issues/436
** Changed in: qemu
Status: Incomplete => Expired
** Changed in: qemu
Assignee: John Snow (jnsnow) => (unassigned)
** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #436
https://gitlab.com/qemu-project/qemu/-/issues/436
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https://bugs.launchpad.net/bugs/1829498
Title:
window 8 stuck during boot on Qemu
Status in QEMU:
Expired
Bug description:
Description of problem:
I've got windows 8 image(64 bit), installed on Qemu(x86-64_softmmu) and then
i'm trying to boot/shutdown it in the same Qemu configuration. Windows 8 has
feature - when you click "Shutdown" in UI, windows 8 doesn't actually power
off, it goes to "Suspend to disc" ACPI state. After shutdown, i'm trying to
boot it again, but it stucks during boot.
I've discovered, that it hangs when windows 8 writes to AHCI's command
register, AHCI triggers irq, but windows 8 sends EOI, don't accessing AHCI
register,so irq line stills in high state, and irq will be injected again and
again, while windows will send EOI on each AHCI interrupt. Strange thing is
that it happens only on TCG mode or
with option "kernel-irqchip=off/split", with "kernel-irqchip=on" everything
works ok(windows 8 accesses AHCI register and line goes to low state).
Version-Release number of selected component (if applicable):
Qemu revision: d8276573da58e8ce78dab8c46dd660efd664bcb7
Steps to Reproduce:
1. Install Windows 8 on QEMU(qemu command line: "-enable-kvm -m 1G -hda
<image> -serial stdio -cpu core2duo -machine q35,kernel-irqchip=off"
2. Click shutdown in UI.
3. Try to boot again(it will stuck)
4. Kill Qemu and boot again, it will boot, now go to 2) :)
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