linux-kernel - Re: linux acpi (thunderbolt? bug)

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Message-ID: <alpine.DEB.2.21.1802181901520.1549@nanos.tec.linutronix.de>
Date:   Sun, 18 Feb 2018 19:03:37 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Yuriy Vostrikov <delamonpansie@...il.com>
cc:     linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: linux acpi (thunderbolt? bug)

On Fri, 16 Feb 2018, Yuriy Vostrikov wrote:
> On 15 February 2018 at 11:52, Thomas Gleixner <tglx@...utronix.de> wrote:
> > Can you please take snapshots from:
> >
> >     /proc/interrupts
> >     /sys/kernel/debug/irq/*
> >
> > right after boot, after the unplug, before suspend and after resume?
> >
> 
> Apparently, timing is important: problem manifests if the laptop goes
> to sleep shortly after unplug.
> If there is some delay between unplugging and sleeping, then there is
> no problem.
> I'm attaching tar.gz with two runs: run-1 with the problem and run-2
> without. Dumps include output
> of dmesg in time of making a snapshot.
> 
> Hope this clarifies the situation a bit.

Yes. I finally wrapped my brain around it and I can reproduce now after
understanding the root cause. I have no fix yet, but I should have
something for you to test tomorrow.

Thanks for providing all the info.

       tglx