Paul E. McKenney efd88b02bb rcu: Add comment giving debug strategy for double call_rcu() ...

The following statement has for some reason proven non-intuitive:

	WARN_ON_ONCE(rcu_segcblist_empty(&rdp->cblist) != (count == 0));

This commit therefore adds a comment that states that this warning
usually triggers in response to a double call_rcu(), which is sort
of like a double free.  The comment also suggests building with
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y to track down the double call_rcu().

Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

2017-12-11 09:17:39 -08:00

..

Kconfig

rcu: Drive TASKS_RCU directly off of PREEMPT

2017-08-17 07:26:04 -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/segcblist: Include rcupdate.h

2017-10-19 12:13:36 -07:00

rcu_segcblist.h

rcu: Remove unused RCU list functions

2017-07-25 13:04:49 -07:00

rcu.h

rcu: Suppress RCU CPU stall warnings while dumping trace

2017-10-09 14:25:17 -07:00

rcuperf.c

rcu: Remove CONFIG_TASKS_RCU ifdef from rcuperf.c

2017-07-24 16:04:09 -07:00

rcutorture.c

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

srcutiny.c

srcu: Move rcu_scheduler_starting() from Tiny RCU to Tiny SRCU

2017-07-24 16:03:22 -07:00

srcutree.c

srcu: Prohibit call_srcu() use under raw spinlocks

2017-11-28 15:52:33 -08:00

sync.c

doc: Fix various RCU docbook comment-header problems

2017-10-19 22:26:11 -04:00

tiny.c

srcu: Move rcu_scheduler_starting() from Tiny RCU to Tiny SRCU

2017-07-24 16:03:22 -07:00

tree_exp.h

rcu: Make expedited GPs correctly handle hardware CPU insertion

2017-07-25 13:04:45 -07:00

tree_plugin.h

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

tree.c

rcu: Add comment giving debug strategy for double call_rcu()

2017-12-11 09:17:39 -08:00

tree.h

rcu: Make RCU CPU stall warnings check for irq-disabled CPUs

2017-10-09 14:25:17 -07:00

update.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 13:37:52 -08:00