On Fri, Sep 19, 2003 at 04:36:32PM -0700, Kris Kennaway wrote:
> On Fri, Sep 19, 2003 at 06:21:52PM +0200, Marius Strobl wrote:
> > On Thu, Sep 18, 2003 at 05:51:25PM +0200, Jan Srzednicki wrote:
> > > 
> > > Anyway, here's backtrace for atapicam panic I've mentioned. It's
> > > triggered by:
> > > 
> > > cdrecord dev=1,1,0 /some/track
> > > 
> > 
> > This panic isn't ATAPICAM related. Could you try the patch below? It's
> > against the cdrtools-devel port but should also work with the cdrtools
> > port.
> 
> Isn't it still a kernel bug if a user process can trigger a panic?
> 

Yes, it seems to be a bug in the mlockall(2) implementation. Backing
it out or hindering cdrecord to use it avoids the panic. I already
wrote an email to bms@ who commited the mlockall(2) and munlockall(2)
support regarding this issue.
The patch for the cdrtools ports is only a workaround until the real
cause is fixed. I also was not sure if it would work for Bryan as I
originally didn't get the same panic as he did.

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