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Message-ID: <dec37fc9-1a69-74dc-d613-d806c732ffd7@leemhuis.info>
Date: Thu, 8 Dec 2022 19:41:27 +0100
From: Thorsten Leemhuis <regressions@...mhuis.info>
To: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>,
Linux PCI <linux-pci@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Linux PM <linux-pm@...r.kernel.org>,
Tasev Nikola <tasev.stefanoska@...net.be>
Subject: Re: [regression] BugĀ 216782 - resume from suspend broken on Asus UX305FA
Hi, this is your Linux kernel regression tracker.
On 08.12.22 15:43, Thorsten Leemhuis wrote:
>
> I noticed a regression report in bugzilla.kernel.org. It afaics needs
> more debugging, but I nevertheless want add it to the tracking.
Bjorn, if you have a minute, could you please take a quick look at this
please: https://bugzilla.kernel.org/show_bug.cgi?id=216782
To quote
```
> Starting from kernel 6.1-rc1 for the first time in 8 years the
> resume
> from suspend is broken on my Asus UX305FA. After resume the sysrsq keys
> do not work and a hard reset is the only solution for shutdown, the
> screen is black, keyboard and mouse do not respond.
>
> After bisecting the first bad commit is:
>
> commit a47126ec29f538e1197862919f94d3b6668144a4
> Author: Bjorn Helgaas <bhelgaas@...gle.com>
> Date: Fri Sep 9 15:24:57 2022 -0500
>
> PCI/PTM: Cache PTM Capability offset
>
> Cache the PTM Capability offset instead of searching for it every time we
> enable/disable PTM or save/restore PTM state. No functional change
> intended.
```
The reporter has some trouble with the bisection (see the ticket for
details), but it looks a bit like the problems are actually caused by
that patch or something in that series.
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
P.S.: As the Linux kernel's regression tracker I deal with a lot of
reports and sometimes miss something important when writing mails like
this. If that's the case here, don't hesitate to tell me in a public
reply, it's in everyone's interest to set the public record straight.
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