documentation: Slow systems can stall RCU grace periods

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If a fast system has a worst-case grace-period duration of (say) ten
seconds, then running the same workload on a system ten times as slow
will get you an RCU CPU stall warning given default stall-warning
timeout settings.  This commit therefore adds this possibility to
stallwarn.txt.

Reported-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

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Paul E. McKenney 2017-08-10 14:33:17 -07:00

parent dfa0ee48ef

commit 3d916a443e

1 changed files with 6 additions and 0 deletions

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Documentation/RCU/stallwarn.txt

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