linux_dsm_epyc7002/kernel/rcu
Paul E. McKenney fd897573fa rcu: Improve diagnostics for failed RCU grace-period start
If a grace period fails to start (for example, because you commented
out the last two lines of rcu_accelerate_cbs_unlocked()), rcu_core()
will invoke rcu_check_gp_start_stall(), which will notice and complain.
However, this complaint is lacking crucial debugging information such
as when the last wakeup executed and what the value of ->gp_seq was at
that time.  This commit therefore removes the current pr_alert() from
rcu_check_gp_start_stall(), instead invoking show_rcu_gp_kthreads(),
which has been updated to print the needed information, which is collected
by rcu_gp_kthread_wake().

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-01-25 15:29:57 -08:00
..
Kconfig rcu: Clean up flavor-related definitions and comments in Kconfig 2018-08-30 16:03:32 -07:00
Kconfig.debug rcu: Move RCU debug Kconfig options to kernel/rcu 2017-06-08 18:52:44 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rcu_segcblist.c rcu: Simplify and inline cpu_needs_another_gp() 2018-05-15 10:30:59 -07:00
rcu_segcblist.h rcu: Simplify and inline cpu_needs_another_gp() 2018-05-15 10:30:59 -07:00
rcu.h rcutorture: Dump grace-period diagnostics upon forward-progress OOM 2018-12-01 12:45:36 -08:00
rcuperf.c Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD 2018-08-30 16:12:53 -07:00
rcutorture.c rcutorture: Don't do busted forward-progress testing 2018-12-01 12:45:42 -08:00
srcutiny.c srcu: Use "ssp" instead of "sp" for srcu_struct pointer 2018-11-27 09:24:17 -08:00
srcutree.c srcu: Use "ssp" instead of "sp" for srcu_struct pointer 2018-11-27 09:24:17 -08:00
sync.c Merge branches 'bug.2018.11.12a', 'consolidate.2018.12.01a', 'doc.2018.11.12a', 'fixes.2018.11.12a', 'initrd.2018.11.08b', 'sil.2018.11.12a' and 'srcu.2018.11.27a' into HEAD 2018-12-01 12:43:16 -08:00
tiny.c Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD 2018-08-30 16:12:53 -07:00
tree_exp.h rcu: Speed up expedited GPs when interrupting RCU reader 2018-11-12 09:03:59 -08:00
tree_plugin.h rcu: Update NOCB comments 2019-01-25 15:29:57 -08:00
tree.c rcu: Improve diagnostics for failed RCU grace-period start 2019-01-25 15:29:57 -08:00
tree.h rcu: Improve diagnostics for failed RCU grace-period start 2019-01-25 15:29:57 -08:00
update.c Merge branches 'bug.2018.11.12a', 'consolidate.2018.12.01a', 'doc.2018.11.12a', 'fixes.2018.11.12a', 'initrd.2018.11.08b', 'sil.2018.11.12a' and 'srcu.2018.11.27a' into HEAD 2018-12-01 12:43:16 -08:00