Messages in this thread |  | | From | Keith Owens <> | Subject | Re: fairly hard XFree86 related crash in 2.4.0-test8+ | Date | Tue, 17 Oct 2000 16:43:04 +1100 |
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On Tue, 17 Oct 2000 00:22:06 -0500, amep@softhome.net wrote: >My main question is how do I go about debugging a problem which locks >up my system? (or at least the video card) I would like to be able to >get some more info so I can really tell you what is going on. Anyway
Apply the relevant kernel debugger patch from http://oss.sgi.com/projects/kdb/download/ix86/. Compile your kernel with NMI oopser for uniprocessor, kdb and serial console. Run a null modem to a second machine (Documentation/serial-console.txt), capture the output on the second machine.
Reproduce the problem. If the machine is running at all then the NMI oopser for UP will trip after 5 seconds, if the oopser does not trip then enter control/A on the serial console. In either case you can use kdb over the serial console to see what the system is doing. Odds are it is spinning on a lock somewhere.
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