debugging lockups

[Greg 'groggy' Lehey]

On Thursday,  4 March 2004 at 14:19:17 -0600, vladimir at math.uic.edu wrote:
> Following up on my previous post  from a couple of days ago with the
> same subject (unfortunately I don't have my original email, so this
> will probably start  a new thread).   A -CURRENT system (built on Mar 3,
> 2004) frequently locks up when typing "ps" or "w", in addition to when
> killing memory-intensive processes.   The system locks up hard, and I
> cannot break into the debugger from the console, although the necessary
> options are compiled into the kernel.

Remote debugging over firewire can help you here.  Look at gdb(4),
specifically the section "Non-cooperative debugging a live system with
a remote firewire link".

Greg
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