[svlug] tracking error in halt scripty

[Alvin Oga]

hi ya ivan

i found linux doesnt shutdown properly when...
- the server still has some "offline" remote server still mounted to it
	- check if "df" completes before shutting down or times out
- corrupted system libs
- bunch of zombies floating around

- if one shutdown dont work... use a different one
  ( they all do slightly differnet things on shutdown )
	- halt
	- reboot
	- init 6
	- shutdown -rf now
	- telinit 6
	- kill -9 1
	- ctl-alt-del
	- hit the reset and force it do e2fsck and clean up whatever
	  it finds... ( bad idea but....

use "strace shutdown_command"  and practice reading really fast...

put  "#!/bin/bash -x" into halt.local script and follow its code

have fun
alvin

> Ivan Sergio Borgonovo wrote:
> 
> Beside the fact I should be more conscious of what I do to my PCs 
> even if I'm experimenting, _suddently_ (that means I didn't care to 
> notice which change caused the fault) Linux doesn't shut down 
> properly.
> This could be vaguely related to PHP4 modules conflicting with some 
> other modules and some not so smart action I took editing the Apache 
> config files... This could be completely unrelated since I played too 
> much with this system without taking enough care to what I was doing.
> 
> Now I can't shut down the system properly.
> 
> I use halt, a SuSE script, and I find hard to track where the problem 
> may be.
> Here is what I have in my boot.omsg:
> ...
> Master Resource Control: previous runlevel: 5, switching to runlevel 6
> Shutting down httpd done
> ....
> Shutting down network device eth0 done
> Disabling ide dma mode hda hdc done
> Saving random seed done
> 
> and most of the times here the machine freez
> sometimes it goes on...
> 
> Running /etc/init.d/halt.local done
> Sending all processes the TERM signal...
> 
> but there seems to be no way to go on from there.
> 
> There are no relevant errors in the messages file
> just mc can't find /dev/gpmctl
> 
> any advice? What kind of info should I collect to have a rough idea 
> of what is causing the problem?
> 
> TIA
> 
> -- 
> avid reader of /usr/src/linux/Documentation/
> 
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