Re: Kernel hang with latest snapshot

[William Cohen <wcohen at redhat dot com>]

David Boreham wrote:
> > My approach is usually to set up a serial console and collect the 
> > output of the stack back trace on another machine using minicom. This 
> > requires a second machine and a null modem cable. This approach 
> > doesn't work so well on machines that don't have serial ports like 
> > newer laptops.
>
>
> Ha ! If I want to get really retro, I have a VT220 here somewhere...

Ah, but text will scroll off the top of the VT220 just like it does on the 
existing console. I guess you could hook up a printer to the VT220 printer port. :)

> > Does vmware allow you to set up a virtual serial console and route the 
> > output to another vmware virtual machine?
>
>
> It would appear that the vmware people thought of this already.
> There is an option to add a virtualized serial device to the VM,
> the output from which can be written to a file on the host machine.
> This option is disabled by default.
>
> Thanks for the pointer...

Glad you were able to get the information from the virtualized serial device.

Is there a bugzilla entry for this problem? It would be good to have a 
description of the problem and a really simple example that triggers the problem 
in the systemtap bugzilla.


-Will