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Re: How do I debug kernel panic that occurs while running X?

On 4 March 2012 01:28, Brendon Higgins <blhiggins@gmail.com> wrote:
> Any more ideas? As I said, I tried getting kdump working but have been having
> trouble getting it to behave.

One more thought, but it's a bit of a long shot as to whether you have
the equipment. The most watertight way I know of to capture kernel
output is a serial port and another computer. If, by any chance, you
have one on your machine, edit /etc/defaults/grub to include
console=ttyS0,155200n1 (or whatever speed you like) on the kernel boot
line. You'll also need another machine with either a serial port or a
USB-serial adapter, making it half as likely that this will help you

Of course, most computers these days (*ahem*) don't have serial ports.
*Maybe* a USB-serial adapter will work for the target machine too...
although this requires an extra level of redirection on the part of
the kernel, and may not be as foolproof, so I wouldn't spend the money
if you don't already have one (or, in fact, two).

Other than that, I'm out of ideas. Hopefully someone else on this list
has an idea that doesn't require technology that was rendered obsolete
for most people by 1995...

— Jason

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