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Tejun Heo 46d8696c61 rcu: Call touch_nmi_watchdog() while printing stall warnings 
[ Upstream commit 3caa973b7a ]

When RCU stall warning triggers, it can print out a lot of messages
while holding spinlocks.  If the console device is slow (e.g. an
actual or IPMI serial console), it may end up triggering NMI hard
lockup watchdog like the following.
 		2018-05-30 07:52:39 +02:00
..
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.h rcu: Move rcu.h to new trivial-function style 2017-08-17 07:26:06 -07:00
rcu_segcblist.c rcu: Remove unused RCU list functions 2017-07-25 13:04:49 -07:00
rcu_segcblist.h rcu: Remove unused RCU list functions 2017-07-25 13:04:49 -07:00
rcuperf.c rcu: Remove CONFIG_TASKS_RCU ifdef from rcuperf.c 2017-07-24 16:04:09 -07:00
rcutorture.c Merge branches 'doc.2017.08.17a', 'fixes.2017.08.17a', 'hotplug.2017.07.25b', 'misc.2017.08.17a', 'spin_unlock_wait_no.2017.08.17a', 'srcu.2017.07.27c' and 'torture.2017.07.24c' into HEAD 2017-08-17 08:10:04 -07:00
srcutiny.c srcu: Move rcu_scheduler_starting() from Tiny RCU to Tiny SRCU 2017-07-24 16:03:22 -07:00
srcutree.c doc: Fix various RCU docbook comment-header problems 2017-10-19 22:26:11 -04:00
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.c doc: Fix various RCU docbook comment-header problems 2017-10-19 22:26:11 -04:00
tree.h Merge branches 'doc.2017.08.17a', 'fixes.2017.08.17a', 'hotplug.2017.07.25b', 'misc.2017.08.17a', 'spin_unlock_wait_no.2017.08.17a', 'srcu.2017.07.27c' and 'torture.2017.07.24c' into HEAD 2017-08-17 08:10:04 -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 rcu: Call touch_nmi_watchdog() while printing stall warnings 2018-05-30 07:52:39 +02:00
update.c rcu: Export init_rcu_head() and destroy_rcu_head() to GPL modules 2018-02-16 20:23:11 +01:00