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[Bug 1860742] Re: xv6 Bootloop
From: |
Thomas Huth |
Subject: |
[Bug 1860742] Re: xv6 Bootloop |
Date: |
Sun, 02 May 2021 18:25:47 -0000 |
The QEMU project is currently considering to move its bug tracking to
another system. For this we need to know which bugs are still valid
and which could be closed already. Thus we are setting older bugs to
"Incomplete" now.
If you still think this bug report here is valid, then please switch
the state back to "New" within the next 60 days, otherwise this report
will be marked as "Expired". Or please mark it as "Fix Released" if
the problem has been solved with a newer version of QEMU already.
Thank you and sorry for the inconvenience.
** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1860742
Title:
xv6 Bootloop
Status in QEMU:
Incomplete
Bug description:
Qemu Version: 4.2.0
Launch command:
qemu-system-x86_64 -nographic -drive
file=fs.img,index=1,media=disk,format=raw -drive
file=xv6.img,index=0,media=disk,format=raw -smp 2 -m 512
How to reproduce?
1.) Use/install latest release of qemu (4.2.0 at time of writing)
2.) Download, build, and run xv6 (a simple os designed for learning
operating systems fundamentals)
cd /tmp
git clone https://github.com/mit-pdos/xv6-public.git
cd xv6-public
make qemu-nox
3.) Qemu should now bootloop (seem to try to boot but then just
repeat). This is what it looks like below before it repeats:
SeaBIOS (version ?-20191223_100556-anatol)
iPXE (http://ipxe.org) 00:03.0 CA00 PCI2.10 PnP PMM+1FF92A50+1FEF2A50
CA00
Booting from Hard Disk..
Host: Arch Linux - Kernel version: 5.4.13
Guest: xv6 (https://github.com/mit-pdos/xv6-public)
Suspicion:
When I was using qemu 2.11.1 inside an ubuntu docker container, the
xv6 os booted with no problem. I am thinking that something changed
between Qemu 2.11.1 and Qemu 4.2.0 which is now causing boot problems.
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- [Bug 1860742] Re: xv6 Bootloop,
Thomas Huth <=