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Bug#1109203: linux-image-6.12.35+deb13-amd64-unsigned: nearly same problem, but I can insert the passphrase and then it breaks and stops loading the kernel



Hello Jochen,

On Wed, Jul 23, 2025 at 03:47:51PM +0200, Uwe Kleine-König wrote:
> On Fri, Jul 18, 2025 at 10:33:48AM +0200, Jochen Becker wrote:
> > Package: src:linux
> > Version: 6.12.35-1
> > Followup-For: Bug #1109203
> > X-Debbugs-Cc: debian-amd64@lists.debian.org, debian@beckerjochen.de
> > User: debian-amd64@lists.debian.org
> > Usertags: amd64
> > 
> > Dear Maintainer,
> > 
> > *** Reporter, please consider answering these questions, where appropriate ***
> > 
> >    * What led up to the situation?
> > 
> >   everything looks fine, but the kernel boot loading stops and breaks
> > 
> > 
> >    * What exactly did you do (or not do) that was effective (or
> >      ineffective)?
> > 
> > booting kernel 6.12.35, after the passpharase of dmcrypt it stops but i saw
> > no message and alos not in not silent mode
> 
> Not sure I understand that correctly, maybe you're affected by a second
> problem?
> 
> > fix it by loading the kernel 6.12.33
> 
> Did you see Salvatore's reply to the original problem report where he
> asked to try on 6.12.37-1? In the meantime there is 6.12.38 in unstable.
> Can you please test that one?
> 
> It would be great if you could bisect the problem. That would involve
> compiling and testing a few 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 v6.12.33
> 	cp /boot/config-$(uname -r) .config
> 	yes '' | make localmodconfig
> 	make safedefconfig
> 	mv defconfig arch/x86/config/mydefconfig
> 
> 	# test 6.12.33 to ensure this is "good"
> 	make mydefconfig
> 	make -j 10 bindeb-pkg
> 	... install the resulting .deb package and confirm it successfully boots
> 
> 	# test 6.12.35 to ensure this is "bad"
> 	git checkout v6.12.35
> 	make mydefconfig
> 	make -j 10 bindeb-pkg
> 	... install the resulting .deb package and confirm it fails to boot
> 
> With that confirmed, the bisection can start:
> 
> 	git bisect v6.12.35 v6.12.33

Before you dive into the bisection process, can you please test if
fb5873b779dd5858123c19bbd6959566771e2e8 is the bad commit?

That is test on:

	git checkout v6.12.35
	git revert --no-edit fb5873b779dd5858123c19bbd6959566771e2e8

Best regards
Uwe

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