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Subjectscheduler starvation running irman with 2.5.64bk2
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irman triggers some odd behavior with 2.5.64bk2 on uniprocessor 
K6/2 475. "ps aux" hasn't returned for a couple hours, though
irman appears to be doing it's thing. I haven't tried irman on smp.

Time to run irman 3x.

2.5.63 4066 seconds
2.5.63-mjb1 2993 seconds
2.5.63-mm2-dline 2856 seconds
2.5.64 3473 seconds
2.5.64bk2 ??

Time to complete irman is variable because the amount of work
done in 3 runs is also variable.

vmstat looks fairly typical, and it prints every 60 seconds.

vmstat 60
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
4 0 0 2564 376368 108 1916 0 0 0 0 1092 25978 2 98 0
4 0 0 2564 376368 108 1920 0 0 0 0 1092 26102 2 98 0

This is vmstat 60 from 2.5.64

procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
4 0 0 2552 377024 116 1520 0 0 0 0 1092 32649 4 96 0
3 0 0 2552 377024 116 1520 0 0 0 0 1092 32865 5 95 0


There are probably less than 50 processes running.
"ps aux" doesn't hear <ctrl z> or <ctrl c>.

Machine doesn't accept new ssh connections.

It's as if after starting irman, new processes don't get any CPU time.

--
Randy Hron
http://home.earthlink.net/~rwhron/kernel/bigbox.html

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