On Mon, 27 Nov 2023, Peter Maydell wrote:
On Mon, 27 Nov 2023 at 12:29, Sebastian Ott <seb...@redhat.com> wrote:
qemu fails to start a guest using the following command (the process just
hangs): qemu-system-aarch64 -machine virt -cpu host -smp 4 -m 8192
-kernel /boot/vmlinuz-6.7.0-rc1 -initrd ~/basic.img -append "root=/dev/ram
console=ttyAMA0" -enable-kvm -device virtio-gpu,hostmem=2G -display none
..which I've used to debug a potential virtio-gpu issue. Bisect points to
69562648f9 ("vl: revert behaviour for -display none")
Is it actually hanging, or is the guest starting up fine but
outputting to a serial port which you haven't directed anywhere?
Ough, that's indeed the case. I only had a quick glance at the bt in gdb
and obviously misinterpreted what I got there.
The commandline is a bit odd because it doesn't set up any of:
* a serial terminal
* a graphical window/display
* network forwarding that would allow ssh into the guest
If you add '-serial stdio' do you see the guest output?
I do. I was using the serial terminal which got setup implicitly I guess.
I'll make sure to always add this.
Sry and thanks,
Sebastian
