[uml-devel] Re: [ann] kraxel's 2.6.8 uml patch kit

[Gerd Knorr <kraxel@bytesex.org>]

On Fri, Aug 20, 2004 at 03:01:40PM -0400, Jeff Dike wrote:
> kraxel@bytesex.org said:
> > uml-core-on-panic
> > 	Make the uml kernel dump core on kernel panics for later analysis.
> > 	Default: off, there is a kernel cmd line arg to enable that. 
> 
> I like this, but I think it would be better done in a panic_notifier.

I'll have a look.

> > uml-fix-mconsole-proc
> > 	fix kernel crash triggered by running "uml_mconsole <umid> proc
> > <some-file>"
> > 	multipole times. 
> 
> I didn't do it this way on purpose.  I create an internal procfs mount in
> case the UML root user has mounted something else on /proc.  I don't want
> the mconsole on the host to be faked out by that.

I guessed that from reading the code already ;)

I'm happy with any other fix for the kernel crash as well.  I'm no VFS
expert through and don't know what exactly is wrong in the original
code.  I know that my version has the drawback that it depends on procfs
actually being mounted on /proc, but it's better that than being able to
kill the kernel by calling "uml_mconsole proc <file>" a few timers ;)

> > uml-terminal-cleanup
> 
> I like this one, but it's big and I'm going to have to take a good look at it.
> I'm somewhat unhappy about the command line change, where you need to specify
> a console or UML doesn't boot.  That'll break everyone's scripts.  Is it 
> possible to provide a default console if there isn't one on the command line?

See Geert's and my other mail.

  Gerd

-- 
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