Re: Better syscall handling


From: Amon Ott <ao@rsbac.org>
Subject: Re: Better syscall handling
Date: Fri, 8 Jun 2001 11:05:25 +0200

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On Mit, 06 Jun 2001 Douglas Ostling wrote:
> On Wed, Jun 06, 2001 at 09:35:26AM +0200, Amon Ott wrote:
> > On Mit, 06 Jun 2001 Douglas Ostling wrote:
> > > How would I go about creating better recovery for handling syscall
> > > interception?  As things are now, the system slows down impossibly
> > > to the point of a hang.
> > 
> > You are the first one ever reporting such a behaviour. It does not happen on
> > all PCs I ever used RSBAC on.
> > 
> > What exactly happens on your system?
> This is an exact duplicate of the kernel syslog message from the most recent
> event of this nature while doing a recursive ftp download with wget from off
> the Interent:
> 
> Jun  5 12:10:50 zone kernel: kernel BUG at vmalloc.c:236! 
> Jun  5 12:10:50 zone kernel: Call Trace: [do_scan_sock+1241/1872] [do_scan_sock
> Do you make sense of it?

Please turn off MS option 'socket scan', which uses the function do_scan_sock.
I will have another look into the allocation code there.

Amon.
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