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[Qemu-devel] [Bug 1829498] [NEW] window 8 stuck during boot on Qemu
From: |
arseniy |
Subject: |
[Qemu-devel] [Bug 1829498] [NEW] window 8 stuck during boot on Qemu |
Date: |
Fri, 17 May 2019 10:38:39 -0000 |
Public bug reported:
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) :)
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1829498
Title:
window 8 stuck during boot on Qemu
Status in QEMU:
New
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) :)
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1829498/+subscriptions
- [Qemu-devel] [Bug 1829498] [NEW] window 8 stuck during boot on Qemu,
arseniy <=