[WBEL-users] Re: Re: [WBEL-users] Determining the Cause of a Kernel Panic

[hawk82]

On my keyboard, the printscreen button is also the SysRq key.

Josh


On Mon, 6 Sep 2004 17:53:52 -0500 (CDT), Benjamin J. Weiss
<benjamin@birdvet.org> wrote:
> On Sun, 5 Sep 2004 timspam@meanor.net wrote:
> >
> > Something else to try is to turn on the "magic SysRq" key.  To enable
> > this at boot, edit /etc/sysctl.conf and make sure the line
> > "kernel.sysrq = 1" is there.  To enable this on a running system, echo
> > 1 > /proc/sys/kernel/sysrq.   Once this is done, you can hit
> > "alt-sysrq-m" at a console to get a memory dump to the screen.  (Note:
> > to get to a console from X, hit ctrl-alt-f5, then ctrl-alt-f7 to get
> > back to X).  This may give you a hint at what the problem is - often,
> > if it's a process, it'll show up in the output.  You can also do a
> > "alt-sysrq-b" to reboot the system, alt-sysrq-c will crash the system
> > and send the dump to a netdump server, if one is configured (netdump is
> > handy).  See /usr/src/linux/documentation/sysrq.txt for more details.
> > I've seen otherwise unresponsive systems respond to the sysrq key.
> >
> > -Tim
> 
> Um...this is very cool....but where on my 101-key keyboard is the sysreq
> key?  I see Prt Scr (print screen), Scroll Lock, Pause, and the arrows,
> etc.  What's the sysreq?
> 
> Thanks!
> 
> Ben
> 
> 
> 
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