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

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Message-ID: <CABgObfZKKeqMrAUyS8CB4ARkW_8Z9QREgpgYcq2jxoQ9ppS6MA@mail.gmail.com>
Date: Mon, 4 Aug 2025 16:50:28 +0200
From: Paolo Bonzini <pbonzini@...hat.com>
To: Andy Mindful <andy.mindful@...il.com>
Cc: regressions@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	linux-pm@...r.kernel.org, intel-gfx@...ts.freedesktop.org, 
	dri-devel@...ts.freedesktop.org, linux-acpi@...r.kernel.org, 
	rafael@...nel.org, ville.syrjala@...ux.intel.com, tglx@...utronix.de, 
	Christian Brauner <brauner@...nel.org>, Jani Nikula <jani.nikula@...el.com>
Subject: Re: [REGRESSION] tty lockup and WWAN loss after hibernate/suspend in
 6.8+ on ThinkPad X1 Carbon Gen 10

On Mon, Aug 4, 2025 at 12:57 PM Andy Mindful <andy.mindful@...il.com> wrote:
> Double-checked bisect, looks like I've have found broken commit:
>
> > > git bisect bad
> > > The merge base ba5afb9a84df2e6b26a1b6389b98849cd16ea757 is bad.
> > > This means the bug has been fixed between
> > > ba5afb9a84df2e6b26a1b6389b98849cd16ea757 and
> > > [1b1934dbbdcf9aa2d507932ff488cec47999cf3f
> > > 61da593f4458f25c59f65cfd9ba1bda570db5db7
> > > 6fc5460ed8dd0edf29e7c5cfb1ef9b1aa04208a1
> > > ba5afb9a84df2e6b26a1b6389b98849cd16ea757].

This skip is messing up the results:

# skip: [0dd3ee31125508cd67f7e7172247f05b7fd1753a] Linux 6.7
git bisect skip 0dd3ee31125508cd67f7e7172247f05b7fd1753a

and there are still 3858 commits in
ba5afb9a84df2e6b26a1b6389b98849cd16ea757..{1b1934dbbdcf9aa2d507932ff488cec47999cf3f,61da593f4458f25c59f65cfd9ba1bda570db5db7,ba5afb9a84df2e6b26a1b6389b98849cd16ea757}

Any chance you can get 6.7 to work and restrict the range further?

Thanks,

Paolo