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| author | Paul E. McKenney <[email protected]> | 2018-12-12 20:32:06 +0000 |
|---|---|---|
| committer | Paul E. McKenney <[email protected]> | 2019-01-25 23:29:59 +0000 |
| commit | 2ccaff10f71307ad4f75ce673b815d3fe6254e3d (patch) | |
| tree | 9d6d8064a44db829f879802af697a13a49868074 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | rcu: Protect rcu_check_gp_kthread_starvation() access to ->gp_flags (diff) | |
| download | kernel-2ccaff10f71307ad4f75ce673b815d3fe6254e3d.tar.gz kernel-2ccaff10f71307ad4f75ce673b815d3fe6254e3d.zip | |
rcu: Add sysrq rcu_node-dump capability
Life is hard if RCU manages to get stuck without triggering RCU CPU
stall warnings or triggering the rcu_check_gp_start_stall() checks
for failing to start a grace period. This commit therefore adds a
boot-time-selectable sysrq key (commandeering "y") that allows manually
dumping Tree RCU state. The new rcutree.sysrq_rcu kernel boot parameter
must be set for this sysrq to be available.
Signed-off-by: Paul E. McKenney <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions