Control: tags -1 + moreinfo
Hi Jerome,
I see you had some progress on making the system boot. We would still
be interested in isolating the problem, so given you can reliably
assert the problem and if I understood correctly this is an
experienced regression from upgrading to 6.12.95? Which was the
previously last working kernel?
Once we have this range, could you please bisect the problem with the
following procedure, let's assume 6.12.94-1 was the last working one
and with 6.12.95-1 you fist experienced the problem, then bisecting
would involve compiling and testing a couple of kernels.
git clone --single-branch -b linux-6.12.y
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
cd linux-stable
git checkout v6.12.94
cp /boot/config-$(uname -r) .config
yes '' | make localmodconfig
make savedefconfig
mv defconfig arch/x86/configs/my_defconfig
# test 6.12.94 to ensure this is "good"
make my_defconfig
make -j $(nproc) bindeb-pkg
... install the resulting .deb package and confirm it successfully boots
# test 6.12.95 to ensure this is "bad"
git checkout v6.12.95
make my_defconfig
make -j $(nproc) bindeb-pkg
... install the resulting .deb package and confirm it fails to boot
With that confirmed, the bisection can start:
git bisect start
git bisect good v6.12.94
git bisect bad v6.12.95
In each bisection step git checks out a state between the oldest
known-bad and the newest known-good commit. In each step test using:
make my_defconfig
make -j $(nproc) bindeb-pkg
... install, try to boot
and if the problem is hit run:
git bisect bad
and if the problem doesn't trigger run:
git bisect good
. Please pay attention to always select the just built kernel for
booting, it won't always be the default kernel picked up by grub.
Iterate until git announces to have identified the first bad commit.
Then provide the output of
git bisect log
In the course of the bisection you might have to uninstall previous
kernels again to not exhaust the disk space in /boot. Also in the end
uninstall all self-built kernels again.
Regards,
Salvatore
