Re: [PATCH 4.9 094/111] rcu: Fix grace-period hangs due to race with CPU offline

2018-09-24 Thread Paul E. McKenney
On Mon, Sep 24, 2018 at 01:53:01PM +0200, Greg Kroah-Hartman wrote: > 4.9-stable review patch. If anyone has any objections, please let me know. And here as well... This should not be needed in 4.18 because of a number of crude but effective grace-period forward-progress failsafes. I have not t

[PATCH 4.9 094/111] rcu: Fix grace-period hangs due to race with CPU offline

2018-09-24 Thread Greg Kroah-Hartman
4.9-stable review patch. If anyone has any objections, please let me know. -- From: "Paul E. McKenney" [ Upstream commit 1e64b15a4b102e1cd059d4d798b7a78f93341333 ] Without special fail-safe quiescent-state-propagation checks, grace-period hangs can result from the following sc