rcu: Don't use NMIs to dump other CPUs' stacks

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Although NMI-based stack dumps are in principle more accurate, they are
also more likely to trigger deadlocks.  This commit therefore replaces
all uses of trigger_all_cpu_backtrace() with rcu_dump_cpu_stacks(), so
that the CPU detecting an RCU CPU stall does the stack dumping.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>

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Paul E. McKenney 2014-06-18 09:18:31 -07:00

parent c0f489d2c6

commit bc1dce514e

1 changed files with 3 additions and 7 deletions

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kernel/rcu/tree.c

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