From: Russell Coker <russell@coker.com.au>
To: Jeff Dike <jdike@addtoit.com>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] Kernel panic: Kernel mode fault at addr 0x0, ip 0x8053457
Date: Fri, 5 Sep 2003 12:35:27 +1000 [thread overview]
Message-ID: <200309051235.27527.russell@coker.com.au> (raw)
In-Reply-To: <200309041709.h84H9D74016587@uml.karaya.com>
On Fri, 5 Sep 2003 03:09, Jeff Dike wrote:
> russell@coker.com.au said:
> > On http://www.coker.com.au/bug/ls.gz I have a compressed version of ls
> > for i386 that causes a reliable UML crash on 2.6.0test3 with the
> > latest test3 UML patch.
>
> Could you make a statically linked version of it so I don't have to figure
> out where to get the libraries it needs?
Actually this has already been tracked down. It seems that if you call a
system call in UML which is in the range of acceptable system calls and which
has not been set to sys_ni_syscall then it will give that result.
The interim solution is to set any unimplemented system calls that your
programs will call (223 for me) to sys_ni_syscall.
But this still means that it will be common for UML kernels to have some
sys-calls which applications can call to crash them (not good for honey-pot
machines).
--
http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages
http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark
http://www.coker.com.au/postal/ Postal SMTP/POP benchmark
http://www.coker.com.au/~russell/ My home page
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next prev parent reply other threads:[~2003-09-05 2:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200308201554.54799.russell@coker.com.au>
2003-09-04 17:09 ` [uml-devel] Kernel panic: Kernel mode fault at addr 0x0, ip 0x8053457 Jeff Dike
2003-09-05 2:35 ` Russell Coker [this message]
2003-09-04 18:03 M A Young
2003-09-04 19:55 ` Jeff Dike
2003-09-05 2:10 ` Jeff Dike
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