We need to pull in a SeaBIOS update with this fix applied to resolve
this
commit 42812e062a77b27b0544c8e0d46d206afc3b2fae
Author: Kevin O'Connor <ke...@koconnor.net>
Date: Thu Feb 22 20:29:27 2018 -0500
shadow: Don't invoke a shutdown on reboot unless in a reboot loop
Old versions of KVM would map the same writable copy of the BIOS at
both 0x000f0000 and 0xffff0000. As a result, a reboot on these
machines would result in a reboot loop. So, the code attempts to
check for that situation and invoke a shutdown instead.
Commit b837e68d changed the check to run prior to the first reboot.
However, this broke reboots on the QEMU isapc machine type. Change
the reboot loop check to only be invoked after at least one reboot has
been attempted.
Reported-by: Daniel P. Berrangé <berra...@redhat.com>
Signed-off-by: Kevin O'Connor <ke...@koconnor.net>
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1747056
Title:
FreeDOS / MS-Dos / Windows 3.11 cannot perform reboot with 'isapc'
machine
Status in QEMU:
New
Bug description:
I was installing MS-Dos 6.22 + Windows 3.11 in preparation for running
Microsoft Bob, and noticed that when they try to perform a reboot,
they just get stuck. The console cursor stays flashing on/off, but the
DOS prompt no longer responds to input.
It is fairly easy to reproduce, even FreeDOS is impacted - download
the FreeDOS bootable CDROM image, then
$ qemu-img create demo.img 100MB
$ qemu-system-x86_64 -machine isapc -cdrom ~/Downloads/FD12CD.iso
-hda demo.img -monitor stdio
Wait for the installer to startup, and then in the monitor console run
sendkey ctrl-alt-delete
It will fail to reboot
Testing shows this is a regression from QEMU 2.8.0 onwards, and git
bisect further narrowed it down to a SEABIOS update
commit 6e99f5741ff1b408ea76e6caf2bd4f76df4060e9 (HEAD, tag:
pull-seabios-20161027-2, tag: pull-seabios-20161027-1, refs/bisect/bad)
Author: Gerd Hoffmann <kra...@redhat.com>
Date: Thu Oct 27 16:42:28 2016 +0200
seabios: update to 1.10.0 release.
Note that this seems particular to the "isapc" machine type - with the
"pc" machine type, reboot still works
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1747056/+subscriptions
