From: Alex Schuster <wonko@wonkology.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Kernel crash - howto find out what happened?
Date: Tue, 14 Oct 2008 19:09:39 +0200 [thread overview]
Message-ID: <200810141909.43431.wonko@wonkology.org> (raw)
In-Reply-To: <200810141831.07316.alexander.puchmayr@linznet.at>
Alexander Puchmayr writes:
> On Dienstag, 14. Oktober 2008, Daniel da Veiga wrote:
> >
> > I had one of this freezes today.
> > Simply killed X using CTRL+SYSREQ+K and got back a console with error
> > messages.
> >
> > Have you tried the SYSREQ keys?
>
> How does this work? I've tried it but I didn't get this working at all.
> AFAIK, first step is to compile the CONFIG_MAGIC_SYSRQ into the kernel.
> Then, make sure there's a "1" in /proc/sys/kernel/sysrq; well it is.
> /usr/src/linux/Documentation/sysrq.txt says press "ALT-SysRq-<command
> key>", I've tried it out with SysRq=printScreen and cmd='h' for help,
> but nothing happens, even under normal conditions. What did I make
> wrong?
Try another key than 'h'. The space key will show a little help, probably
that what you expected to see with 'h'. Oh, you need to be on a text
console (ctrl-at-f1) to get visible output.
http://en.wikipedia.org/wiki/Magic_SysRq_key
Wonko
next prev parent reply other threads:[~2008-10-14 17:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-12 9:08 [gentoo-user] Kernel crash - howto find out what happened? Alexander Puchmayr
2008-10-12 9:16 ` Erik Hahn
2008-10-12 11:12 ` Alexander Puchmayr
2008-10-12 11:35 ` Alan McKinnon
2008-10-12 13:00 ` Alexander Puchmayr
2008-10-13 15:09 ` Duane Griffin
2008-10-13 23:30 ` Daniel da Veiga
2008-10-14 16:31 ` Alexander Puchmayr
2008-10-14 17:09 ` Alex Schuster [this message]
2008-10-19 9:58 ` Alexander Puchmayr
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