linux-kernel - Re: 3.6-rc2 crashs often with keyboard blinking

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Message-ID: <20120820203158.245d6b06@neptune.home>
Date:	Mon, 20 Aug 2012 20:31:58 +0200
From:	Bruno Prémont <bonbons@...ux-vserver.org>
To:	"werner" <w.landgraf@...ru>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 3.6-rc2 crashs often with keyboard blinking

On Sun, 19 August 2012 "werner" <w.landgraf@...ru> wrote:
> 3.6-rc2 crashs often (not during the boot, but later when 
> using KDE and internet)
> Then the keyboard is blinking, sometimes 2, sometimes 3 
> lamps (Caps Lock, Scroll lock, sometimes Num Lock too)
> With 3.6-rc2 this didn't happen.   The configuration stays 

Huh, above you just said 3.6-rc2 crashes...

> the same.
> In the logfiles is nothing visible.
> Ideas how to catch this ?

If you can hook a serial cable to your system and boot it with
console=/dev/ttyS0 console=tty0 (assuming you hook ttyS0, and adding
baud-rate as needed) you can grab possible kernel out this way.

Alternatively you can also use netconsole and capture output on
a second system on your network (e.g. with netcat).

See Documentation/kernel-parameters.txt and Kconfig help for
netconsole for details.

Bruno
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