Hi Paul,
On 15/8/24 23:23, Paul Menzel wrote:
Dear QEMU folks,
I would like to boot a Linux kernel image several times, and log the
output – case in point [1] it would be booting with `initcall_debug`,
and look at how long `acpi_init()` took to execute.
I came up with
qemu-system-x86_64 -enable-kvm -smp cpus=2 -m 1G -nographic -kernel
/boot/vmlinuz-6.11.0-rc3-00007-gd74da846046a -append "initcall_debug
console=ttyS0"
but it hangs, as no bootable image is found. There are probably a lot of
ways to reboot it (initrd, wrapper script, …). What is the “easiest” way?
Guenter uses QEMU with "-no-reboot -append 'panic=-1 noreboot'"
for the linux-build-test suite:
https://github.com/groeck/linux-build-test
You should see on the console:
reboot: Restarting system
(we also use it in our functional tests, see
tests/avocado/boot_linux_console.py).
Regards,
Phil.
[1]:
https://lore.kernel.org/linux-acpi/20240808222138.51-1-colin.k...@intel.com/
