[dtrace-discuss] System hangs when invoking DTrace script

[Adam Leventhal]

Hey Ryan,

This might be an issue with the Parallels emulation environment. Do you have
any more information? Can you boot into kmdb and get a dump while it's hung?

Adam

On Wed, Dec 06, 2006 at 10:24:31PM -0500, Matty wrote:
> Howdy,
> 
> I installed Nevada build 49 in a parallels VM on my intel mac mini,
> and when I run the following DTrace script:
> 
> $ cat follow.d
> #pragma option D flowindent;
> 
> pid$target:::entry,
> pid$target:::return
> {}
> 
> $ cat format.cmds
> disk
> 0
> exit
> 
> $ dtrace -s follow.d -o follow.out -c "/usr/sbin/format -f format.cmds"
> dtrace: script 'follow.d' matched 13641 probes
> 
> The system hangs, and the following error is written to the console
> and /var/adm/messages:
> 
> Dec  6 20:10:34 sparky unix: [ID 988528 kern.warning] WARNING:
> Unexpected INT 1 in user mode, dr6=ffff0ff0
> 
> Is anyone able to reproduce this? Any thoughts what might be causing it?
> 
> Thanks,
> - Ryan
> -- 
> UNIX Administrator
> http://prefetch.net
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> dtrace-discuss at opensolaris.org

-- 
Adam Leventhal, Solaris Kernel Development       http://blogs.sun.com/ahl