It seems like the sysrq code can get starved by a SCHED_FIFO task. I
learned this by having an accidentally runaway SCHED_FIFO task which
locked up my system. No SAK, no sync, no unmount, no reboot. Big Red
Button.
David
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David Mansfield (718) 963-2020
[email protected]
Ultramaster Group, LLC http://www.ultramaster.com