[REGRESSION] tty lockup and WWAN loss after hibernate/suspend in 6.8+ on ThinkPad X1 Carbon Gen 10

[Jani Nikula]

On Sun, 03 Aug 2025, Andy Mindful <andy.mindful at gmail.com> wrote:
> Here what I have from bisecting, please let me know if it makes things
> clearer or not.

Doesn't point at graphics, anyway.

Cc: Christian.


BR,
Jani.


>
> git bisect log
> git bisect start
> # status: waiting for both good and bad commits
> # good: [6fc5460ed8dd0edf29e7c5cfb1ef9b1aa04208a1] Linux 6.7.11
> git bisect good 6fc5460ed8dd0edf29e7c5cfb1ef9b1aa04208a1
> # status: waiting for bad commit, 1 good commit known
> # bad: [6613476e225e090cc9aad49be7fa504e290dd33d] Linux 6.8-rc1
> git bisect bad 6613476e225e090cc9aad49be7fa504e290dd33d
> # skip: [0dd3ee31125508cd67f7e7172247f05b7fd1753a] Linux 6.7
> git bisect skip 0dd3ee31125508cd67f7e7172247f05b7fd1753a
> # good: [ba5afb9a84df2e6b26a1b6389b98849cd16ea757] fs: rework
> listmount() implementation
> git bisect good ba5afb9a84df2e6b26a1b6389b98849cd16ea757
> # good: [61da593f4458f25c59f65cfd9ba1bda570db5db7] Merge tag
> 'media/v6.8-2' of
> git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
> git bisect good 61da593f4458f25c59f65cfd9ba1bda570db5db7
> # bad: [e38f734add21d75d76dbcf7b214f4823131c1bae] Merge tag
> 'staging-6.8-rc1' of
> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
> git bisect bad e38f734add21d75d76dbcf7b214f4823131c1bae
> # bad: [5d197e97fb106c09d3d013be341e5961fd70ec8a] Merge tag
> 'hsi-for-6.8' of
> git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
> git bisect bad 5d197e97fb106c09d3d013be341e5961fd70ec8a
> # good: [1b1934dbbdcf9aa2d507932ff488cec47999cf3f] Merge tag
> 'docs-6.8-2' of git://git.lwn.net/linux
> git bisect good 1b1934dbbdcf9aa2d507932ff488cec47999cf3f
> # good: [1b1934dbbdcf9aa2d507932ff488cec47999cf3f] Merge tag
> 'docs-6.8-2' of git://git.lwn.net/linux
> git bisect good 1b1934dbbdcf9aa2d507932ff488cec47999cf3f
> # bad: [8c9244af4dc8680a453e759331f0c93d5bde1898] Merge tag
> 'kvm-x86-svm-6.8' of https://github.com/kvm-x86/linux into HEAD
> git bisect bad 8c9244af4dc8680a453e759331f0c93d5bde1898
> # bad: [783288010035e4c250a0b6491a4642cdb8d30548] KVM: x86: add
> missing "depends on KVM"
> git bisect bad 783288010035e4c250a0b6491a4642cdb8d30548
> # bad: [783288010035e4c250a0b6491a4642cdb8d30548] KVM: x86: add
> missing "depends on KVM"
> git bisect bad 783288010035e4c250a0b6491a4642cdb8d30548
> # bad: [861deac3b092f37b2c5e6871732f3e11486f7082] Linux 6.7-rc7
> git bisect bad 861deac3b092f37b2c5e6871732f3e11486f7082
>
> # being on a 861deac3b092
> git bisect bad
> The merge base ba5afb9a84df2e6b26a1b6389b98849cd16ea757 is bad.
> This means the bug has been fixed between
> ba5afb9a84df2e6b26a1b6389b98849cd16ea757 and
> [1b1934dbbdcf9aa2d507932ff488cec47999cf3f
> 61da593f4458f25c59f65cfd9ba1bda570db5db7
> 6fc5460ed8dd0edf29e7c5cfb1ef9b1aa04208a1
> ba5afb9a84df2e6b26a1b6389b98849cd16ea757].
>
> Thanks.
>
> вт, 29 лип. 2025 р. о 13:20 Jani Nikula <jani.nikula at intel.com> пише:
>>
>> On Tue, 29 Jul 2025, Andy Mindful <andy.mindful at gmail.com> wrote:
>> > Please let me know if any further information or testing is required.
>>
>> Likely the quickest way to find the root cause is to bisect the issue.
>>
>>
>> BR,
>> Jani.
>>
>> --
>> Jani Nikula, Intel

-- 
Jani Nikula, Intel