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| author | Paul E. McKenney <[email protected]> | 2018-04-21 20:44:11 -0700 |
|---|---|---|
| committer | Paul E. McKenney <[email protected]> | 2018-07-12 14:24:42 -0700 |
| commit | 26d950a9451336a6b5abc1c8ca6c21df58e8d89f (patch) | |
| tree | f68a88af62c5dda366ccc760afd57b223f8d5b1a /tools/perf/scripts/python | |
| parent | 8c42b1f39fdf9fde7cfc4024397255f31a860db6 (diff) | |
rcu: Diagnostics for grace-period startup hangs
This commit causes a splat if RCU is idle and a request for a new grace
period is ignored for more than one second. This splat normally indicates
that some code path asked for a new grace period, but failed to wake up
the RCU grace-period kthread.
Signed-off-by: Paul E. McKenney <[email protected]>
[ paulmck: Fix bug located by Dan Carpenter and his static checker. ]
[ paulmck: Fix self-deadlock bug located 0day test robot. ]
[ paulmck: Disable unless CONFIG_PROVE_RCU=y. ]
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions