------- Additional Comments From kaos@xxxxxxx 2003-03-25 16:42 -------
Kernel bug. UP systems call task_set_cpu() but never call
task_release_cpu() so all tasks appear to own the cpu, which confuses
debuggers. This problem has been bounced to linux-kernel.
I doubt that the missing task_release_cpu() has anything to do with
your umount hang. Unfortunately it does stop kdb backtrace working on
UP systems. I expect to get a fix from l-k in the next day or so.
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