linux-kernel - Re: xterms freezing on 2.6.31-rc2 (was Re: [regression] Re: 2.6.31-rc2: X stop accepting keystrokes?)

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Message-ID: <20090717131758.GA2331@elf.ucw.cz>
Date:	Fri, 17 Jul 2009 15:17:58 +0200
From:	Pavel Machek <pavel@....cz>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-input@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: xterms freezing on 2.6.31-rc2 (was Re: [regression] Re:
	2.6.31-rc2: X stop accepting keystrokes?)

On Fri 2009-07-17 15:13:41, Jiri Kosina wrote:
> On Fri, 17 Jul 2009, Pavel Machek wrote:
> 
> > > > ...and they seem to be slightly different crashes. Once keyboard was
> > > > dead but mouse worked, second time keyboard still worked but xterms
> > > > kept locking up. I managed to type dmesg into one of them, but that
> > > > xterm hung in middle of dump :-(.
> > > 
> > > I guess that both keyboard and mouse are PS/2 connected, right?
> > 
> > Thinkpad internal keyboard/mouse, yes.
> > 
> > > Any possibility to capture serial console output?
> > 
> > I managed to get dmesg via magic sysrq at some point. I got some
> > softlockup messages and processes seemed to hang.
> 
> Softlockup in which area?

Sorry, I did not write it down :-(.

> Are you able to ssh into the machine? Where do the xterms hang? 
> (/proc/<pid>/stack)

I was not able to capture that. I'll try pen and paper next :-).

> > I'm no  longer sure how much keyboard related it is. It seems to
> > happen while typing, but ... the system still reacts to keyboard but
> > xterms hang. 
> 
> Could this be related to
> 
> 	http://lkml.org/lkml/2009/7/16/268

Actually... that sounds suspiciously like it. I'll try -rc3 update.

									Pavel

-- 
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