Hi, On Wed, 1 Feb 2023 14:59:06 +0100 Salvatore Bonaccorso <car...@debian.org> wrote: > On Tue, Jan 31, 2023 at 05:05:53PM +0100, Salvatore Bonaccorso wrote: > > Hi, > > > > On Fri, Jan 20, 2023 at 04:42:27PM +0100, Helmut Grohne wrote: > > > Control: severity -1 normal > > > > > > On Fri, Jan 20, 2023 at 03:55:53PM +0100, Helmut Grohne wrote: > > > > A CI job of debvm started failing. debvm creates a minimalistic virtual > > > > machine based on Debian unstable i386 and tries to run it in qemu. With > > > > the previous kernel package that worked. Once updating to 6.1.7-1, it > > > > fails to boot: > > > > > > I have one more data point. If you pass -enable-kvm to qemu, it actually > > > boots. It only fails to boot when disabling kvm. That shouldn't affect > > > that many users. It's still unclear what causes the issue. > > > > > > I'm also pulling qemu maintainer mjt into the discussion for possible > > > input. > > > > I cannot now confirm the issue anymore with 6.1.8-1 as uploaded to > > unstable. So think we can close the bug accordingly with 6.1.8-1 > > though it would be good to know/pin point the issue. > > Doing for now. Still think would be nice to know the root cause.
since my house was cold this morning, I bisected the kernel again between 6.1.7 and 6.1.8. The commit that made the kernel panic go away is this one: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6c27fc15747967e350fa9f253a034ff03e943ccf Thanks! cheers, josch P.S.: if future-me wants to do this again, this is the command I ran on every bisect step: git reset --hard \ && git clean -fdx \ && cp /boot/config-6.1.0-2-686-pae .config \ && scripts/config --disable MODULE_SIG \ && scripts/config --disable DEBUG_INFO \ && QUILT_PATCHES=~/linux-6.1.7/debian/patches quilt push -a \ && time make -j16 bzImage \ && env --chdir=~/debvm bin/debvm-run -i ~/debvm/rootfs.ext4 -- -kernel ~/linux/arch/x86/boot/bzImage
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