[vox-tech] Re: [vox] Demo today

[Jonathan Stickel]

When I try alt-sysrq-h (to display magic-sysrq help) in KDE, my cpu runs 
for awhile but nothing seems to happen.  I wanted to avoid testing 
something more drastic, but since you asked, I entered init level 3 and 
tried a few (alt-sysrq-'h', 's', 'u', and 'b').  Nothing happens at all.

Jonathan


Peter Jay Salzman wrote:
> redirected to vox-tech
> 
> begin Jonathan Stickel <jjstickel@netscape.net> 
> 
>>I was previously unaware of the magic sysreq keys.  They do look useful, 
>> and I read the documentation as you suggest.  From what I can tell, it 
>>is compiled in my kernel (CONFIG_MAGIC_SYSRQ=y), but I am wondering if 
>>it is disabled with the run-time command:  "echo "0" > 
>>/proc/sys/kernel/sysrq", as suggested by the documentation.  In fact, my 
>>/proc/sys/kernel/sysrq contains the single character "0".  Where would I 
>>find this run time command?  Can I just delete it or comment it out? 
>>Thanks,
>>
>>Jonathan
> 
> 
> have you tried to use sysreq and it didn't work?
> 
> pete
> 
> 
>>Peter Jay Salzman wrote:
>>
>>>hi doug,
>>>
>>>check out /usr/src/linux-2.4.20/Documentation/sysrq.txt
>>>
>>>it's very short.  basically, you make the kernel:
>>>
>>>1. flush buffers ("sync disks")
>>>2. remount all partitions as read-only
>>>3. reboot
>>>
>>>print screen == sysrq
>>>
>>>alt-sysrq-s    flush
>>>alt-sysrq-u    remount partitions as read-only
>>>alt-sysrq-b    reboot
>>>
>>>you can actually send TERM and KILL to all processes.   this is the kind
>>>of thing you should really read about before using.   it's short and
>>>well written.
>>>
>>>pete
>>>
>>>
>>>begin R. Douglas Barbieri <doug@dooglio.net> 
>>>
>>>
>>>>Okay, so explain to me the magic sysreq keys... :-) I experience lockups
>>>>sometimes when I'm trying to start up Win4Lin. It hoses my machine so
>>>>badly that Ctrl-Alt-Backspace won't even kill X (and Ctrl-Alt-Fn doesn't
>>>>even work. I have to hard restart when that happens).
>>>>
>>>>On Sat, Mar 15, 2003 at 09:38:11PM -0800, Bill Kendrick wrote:
>>>>
>>>>
>>>>>Today's Linux demo was pretty successful.  Mike showed up (a bit late 
>>>>>;^) )
>>>>>with the Demo machine.  Before that, I just had the flyers set up, and
>>>>>a couple of kids came by, and I gave them Tux Paint CDs. :^)
>>>>>
>>>>>When the computer showed up, we started getting many more visitors.
>>>>>Questions ranged from "I use Linux at work, and the other day it 
>>>>>/completely/
>>>>>locked up!" (Mike explained magic sysreq keys) to "Why would I want 
>>>>>Linux?"
>>>>>(I said "for the good of humanity"; she really digged that answer, and
>>>>>stuck around and talked for a long time)
>>>>>
>>>>>Towards the latter half, Jeff Newmiller came by and set up his laptop,
>>>>>so we had one desktop, one laptop, and one PDA (which didn't get too 
>>>>>much use).
>>>>>
>>>>>
>>>>>We worked on getting Apache configured to show off the LUGOD.org website,
>>>>>demo'd Tux Paint a lot, and played a little with getting OCR software to
>>>>>work (in response to someone's complaint about Windows).
>>>>>
>>>>>
>>>>>Henry - we should set one up for April or May!
>>>>>
>>>>>-- 
>>>>>bill@newbreedsoftware.com                                            
>>>>>Hire me!
>>>>>http://newbreedsoftware.com/bill/    
>>>>>http://newbreedsoftware.com/bill/resume/
>>>>>_______________________________________________
>>>>>vox mailing list
>>>>>vox@lists.lugod.org
>>>>>http://lists.lugod.org/mailman/listinfo/vox
>>>>
>>>>-- 
>>>>R. Douglas Barbieri
>>>>doug@dooglio.net
>>>>http://www.dooglio.net
>>>>
>>>>GPG Fingerprint : FE6A 6A57 2B95 7594 E534  BFEE 45F1 9E5E F30A 8A27
>>>>MIT.edu recv-key: F6368A3D
>>>>GPG Public key  : http://www.dooglio.net/dooglio.asc
>>>
>>>
>>>
>>>
>>
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> 
>