Joel Fernandes (Google) 66bcb1321b rcutorture: Replace schedule_timeout*() 1-jiffy waits with HZ/20 ...

In the past, spinning on schedule_timeout* with a wait of 1 jiffy has
hung the kernel. See for example d52d3a2bf408 ("torture: Fix hang during
kthread shutdown phase").

This issue recently recurred in torture's stutter code.  The result is
that the function instantly returns and never goes to sleep, preempting
whatever might otherwise make useful forward progress.

To prevent future issues, apply the commit-d52d3a2bf408 fix throughout
rcutorture, moving from a 1-jiffy wait to a 50-millisecond wait.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>

2023-09-24 17:24:02 +02:00

..

Kconfig

rcu: Employ jiffies-based backstop to callback time limit

2023-05-11 13:42:39 -07:00

Kconfig.debug

rcu: Allow up to five minutes expedited RCU CPU stall-warning timeouts

2023-01-09 12:09:52 -08:00

Makefile

rcuperf: Change rcuperf to rcuscale

2020-08-24 18:39:24 -07:00

rcu_segcblist.c

rcu: Throttle callback invocation based on number of ready callbacks

2023-01-03 17:28:34 -08:00

rcu_segcblist.h

rcu: Throttle callback invocation based on number of ready callbacks

2023-01-03 17:28:34 -08:00

rcu.h

torture: Move rcutorture_sched_setaffinity() out of rcutorture

2023-09-24 17:24:01 +02:00

rcuscale.c

rcuscale: Move rcu_scale_writer() schedule_timeout_uninterruptible() to _idle()

2023-07-14 15:01:49 -07:00

rcutorture.c

rcutorture: Replace schedule_timeout*() 1-jiffy waits with HZ/20

2023-09-24 17:24:02 +02:00

refscale.c

refscale: Add a "jiffies" test

2023-07-14 15:01:04 -07:00

srcutiny.c

rcu: Annotate SRCU's update-side lockdep dependencies

2023-03-27 11:15:59 -07:00

srcutree.c

Merge branches 'rcu/staging-core', 'rcu/staging-docs' and 'rcu/staging-kfree', remote-tracking branches 'paul/srcu-cf.2023.04.04a', 'fbq/rcu/lockdep.2023.03.27a' and 'fbq/rcu/rcutorture.2023.03.20a' into rcu/staging

2023-04-05 13:50:37 +00:00

sync.c

rcu/sync: Use call_rcu_hurry() instead of call_rcu

2022-11-29 14:04:33 -08:00

tasks.h

Merge branches 'doc.2023.07.14b', 'fixes.2023.08.16a', 'rcu-tasks.2023.07.24a', 'rcuscale.2023.07.14b', 'refscale.2023.07.14b', 'torture.2023.08.14a' and 'torturescripts.2023.07.20a' into HEAD

2023-08-16 14:31:08 -07:00

tiny.c

rcu: Refactor kvfree_call_rcu() and high-level helpers

2023-01-03 17:48:40 -08:00

tree_exp.h

rcu: Mark additional concurrent load from ->cpu_no_qs.b.exp

2023-05-11 13:42:39 -07:00

tree_nocb.h

rcu: Make the rcu_nocb_poll boot parameter usable via boot config

2023-08-16 14:27:41 -07:00

tree_plugin.h

rcu: Mark additional concurrent load from ->cpu_no_qs.b.exp

2023-05-11 13:42:39 -07:00

tree_stall.h

tty: sysrq: switch sysrq handlers from int to u8

2023-07-25 19:21:03 +02:00

tree.c

rcu: Mark __rcu_irq_enter_check_tick() ->rcu_urgent_qs load

2023-08-16 14:27:41 -07:00

tree.h

rcu: Add RCU stall diagnosis information

2023-01-05 12:21:11 -08:00

update.c

torture: Move rcutorture_sched_setaffinity() out of rcutorture

2023-09-24 17:24:01 +02:00