linux-kernel - Re: droid 4 in v4.18-rc: grep -r adasfasd /sys/ oopses

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Date:   Mon, 9 Jul 2018 13:10:37 +0200
From:   Pavel Machek <pavel@....cz>
To:     Tony Lindgren <tony@...mide.com>
Cc:     kernel list <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-omap@...r.kernel.org, sre@...nel.org, nekit1000@...il.com,
        mpartap@....net, merlijn@...zup.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux-pm mailing list <linux-pm@...r.kernel.org>
Subject: Re: droid 4 in v4.18-rc: grep -r adasfasd /sys/ oopses

On Mon 2018-07-09 03:33:05, Tony Lindgren wrote:
> * Pavel Machek <pavel@....cz> [180708 19:40]:
> > Ok, so it seems to be:
> > 
> > user@...uan:~$ cat /sys/kernel/debug/pm_debug/count
> > (oops).
> > 
> > The file seems to be world-readable.
> > 
> > user@...uan:~$ ls -al /sys/kernel/debug/pm_debug/count
> > -r--r--r-- 1 root root 0 Jan  1  1970 /sys/kernel/debug/pm_debug/count
> > 
> > But on PC, that file does not exist.
> > 
> > Any ideas?
> 
> I'm not seeing this as tested with omap2plus_defconfig and
> not seeing any unclocked module interrupts here.. Can you
> see if the script below produces something for you?
> 
> I had to filter out some trace pipes as they seem to hang.

After some more debugging:

+       printk("3...\n");
        cm_per_dump(s);
+       printk("4...\n");

cm_per_dump seems to be the problem.
								Pavel
								
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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