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Date:      Sat, 27 May 2000 07:00:11 -0700
From:      Peter Wemm <peter@netplex.com.au>
To:        Bosko Milekic <bmilekic@dsuper.net>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: Linux Module problems 
Message-ID:  <20000527140011.2352D1CE1@overcee.netplex.com.au>
In-Reply-To: Message from Bosko Milekic <bmilekic@dsuper.net>  of "Fri, 26 May 2000 14:08:18 EDT." <Pine.BSF.4.21.0005261352080.20869-100000@jehovah.technokratis.com> 

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The ipfw module does the same thing too.  I discovered this while testing
the kernel side of the recent module changes.

Bosko Milekic wrote:

> 	On my -CURRENT machine,
> 
> FreeBSD jehovah 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Sat May 13 15:11:13 EDT
> 2000     root@jehovah:/usr/src/sys/compile/JEHOVAH  i386
> 
> 	(obviously a little out-dated), I have recently noticed unusual
>   problems with the linux module which, by the way, is of the same date.
>   	The first problem I discovered first came up while building the
>   StarOffice5 port. After checking the dependency for linux's libc5, it
>   _spontaneously_ reboots. No panic(), hence no debugger. I've never seen
>   this sort of behavior before and have no idea what could have caused it.
> 	However, I noticed a related incident, which I can reproduce. What I
>   did was, for kicks, kldunload linux, and then make install the
>   staroffice5 port, and this time, I got a page fault and panic() from
>   within malloc, which was trying to move something located at an address
>   on an unmapped page to a register. I can reproduce this easily at the
>   moment, with the following:
> 
>   #!/bin/sh
>   while true; do
>    kldload linux;
>    kldunload linux;
>   done
> 
>   A quick kldunload linux followed by a quick kldload linux does it on the
>   first iteration.
> 
>   What's more odd is that now, after panic()ing the machine a couple of
>   times with the above, I can reproduce the spontaneous reboot easily too,
>   by just starting up linux Netscape!
> 
>   At the moment, I cvsup-ed new sources, and am rebuilding world and a
>   fresh new kernel, at which point I'll try to reproduce this again. I
>   remember seeing this in earlier -CURRENT, too, just never got around to
>   playing with it. Anyone?
> 
> --
>  Bosko Milekic * pages.infinit.net/bmilekic/index.html * www.technokratis.com
>  bmilekic@dsuper.net * bmilekic@technokratis.com * b.milekic@marianopolis.edu
> 
> 
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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> 
> 

Cheers,
-Peter
--
Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au
"All of this is for nothing if we don't go to the stars" - JMS/B5



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