vnode_pager_putpages errors and DOS?

[Steve Shorter]

On Thu, Jan 01, 1970 at 12:00:00AM +0000, Steve Shorter wrote:
> Howdy!
> 
> 	FreeBSD 4-10
> 
> 	I have some machines that run customers cgi stuff.
> These machines have started to hang and become unresponsive.
> At first I thought it was a hardware issue, but I discovered in 
> a cyclades log the following stuff that got logged to the
> console which explains the cause of the system hangs/failures.
> 
> vnode_pager_putpages: residual I/O 65536 at 347
> vnode_pager_putpages: I/O error 28]
> vnode_pager_putpages: residual I/O 65536 at 285] 


	Aha! also at the same time I get in syslog

	/kernel: pid 6 (syncer), uid 0 on /chroot/tmp: file system full


	Whats happening? Can a full filesystem bring the thing down?
Ideas? Fixes?

	thanx - steve


	

	
> 
> 	Zillions of them.
> 
> 	The only way to recover the machine is to power cycle
> it.
> 
> 	From what I can tell from google etc.. and someone elses
> experience it is probably the consequence of someone filling
> up /var/tmp or something.
> 
> 	Should a non root user program be able to DOS
> a machine like this? or What is the cause and/or fix for this?
> 
> 
> 	thanx - steve
> 
> 
> 
> 
> 
> 
> 	"The age of the Internet has a right to its own music."
> 
> 		http://www.linuxsuite.org
> 
> ----- End forwarded message -----
> 
>