Hello, Ingo, This pull request is for an RCU change that permits waiting for grace periods started by CPUs late in the process of going offline. Lack of this capability is causing failures:
http://lkml.kernel.org/r/db9c91f6-1b17-6136-84f0-03c3c2581...@codeaurora.org Although these failures predate v4.12, and thus are in some sense not regressions, it would be good for them to be fixed sooner rather than later, hence this RFC pull request. This commit was posted to LKML: http://lkml.kernel.org/r/1500933116-11642-2-git-send-email-paul...@linux.vnet.ibm.com This commit has been exposed to 0day test robot and -next testing and is available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo for you to fetch changes up to a58163d8ca2c8d288ee9f95989712f98473a5ac2: rcu: Migrate callbacks earlier in the CPU-offline timeline (2017-07-25 13:03:43 -0700) ---------------------------------------------------------------- Paul E. McKenney (1): rcu: Migrate callbacks earlier in the CPU-offline timeline include/linux/rcupdate.h | 1 + kernel/cpu.c | 1 + kernel/rcu/tree.c | 209 +++++++++++++++++++++++++---------------------- 3 files changed, 115 insertions(+), 96 deletions(-)