[Bug 1860742] Re: xv6 Bootloop

[Thomas Huth]

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/192


** Changed in: qemu
       Status: New => Expired

** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #192
   https://gitlab.com/qemu-project/qemu/-/issues/192

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https://bugs.launchpad.net/bugs/1860742

Title:
  xv6 Bootloop

Status in QEMU:
  Expired

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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