Frederic Weisbecker dad6a09f31 hrtimer: Report offline hrtimer enqueue ... The hrtimers migration on CPU-down hotplug process has been moved earlier, before the CPU actually goes to die. This leaves a small window of opportunity to queue an hrtimer in a blind spot, leaving it ignored. For example a practical case has been reported with RCU waking up a SCHED_FIFO task right before the CPUHP_AP_IDLE_DEAD stage, queuing that way a sched/rt timer to the local offline CPU. Make sure such situations never go unnoticed and warn when that happens. Fixes: 5c0930ccaa ("hrtimers: Push pending hrtimers away from outgoing CPU earlier") Reported-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240129235646.3171983-4-boqun.feng@gmail.com		2024-02-06 10:56:35 +01:00
..
alarmtimer.c	alarmtimer: Use maximum alarm time for suspend	2023-10-09 15:03:28 +02:00
clockevents.c
clocksource-wdtest.c
clocksource.c	clocksource: Skip watchdog check for large watchdog intervals	2024-01-25 09:13:16 +01:00
hrtimer.c	hrtimer: Report offline hrtimer enqueue	2024-02-06 10:56:35 +01:00
itimer.c
jiffies.c
Kconfig
Makefile
namespace.c
ntp_internal.h
ntp.c
posix-clock.c	posix-clock: introduce posix_clock_context concept	2023-10-15 20:07:52 +01:00
posix-cpu-timers.c
posix-stubs.c	posix-timers: Get rid of [COMPAT_]SYS_NI() uses	2023-12-20 21:30:27 -08:00
posix-timers.c	posix-timers: Refer properly to CONFIG_HIGH_RES_TIMERS	2023-06-18 22:41:53 +02:00
posix-timers.h
sched_clock.c	time/sched_clock: Provide sched_clock_noinstr()	2023-06-05 21:11:04 +02:00
test_udelay.c
tick-broadcast-hrtimer.c
tick-broadcast.c
tick-common.c	tick/common: Align tick period during sched_timer setup	2023-06-16 20:45:28 +02:00
tick-internal.h	time: Make sysfs_get_uname() function visible in header	2023-11-22 14:12:10 +01:00
tick-legacy.c
tick-oneshot.c
tick-sched.c	tick/sched: Preserve number of idle sleeps across CPU hotplug events	2024-01-25 09:52:40 +01:00
tick-sched.h
time_test.c	kunit: time: Mark test as slow using test attributes	2023-07-26 13:29:35 -06:00
time.c	time: add kernel-doc in time.c	2023-07-14 13:47:07 -06:00
timeconst.bc
timeconv.c
timecounter.c
timekeeping_debug.c
timekeeping_internal.h
timekeeping.c
timekeeping.h
timer_list.c
timer.c	timers: Fix nextevt calculation when no timers are pending	2023-12-20 16:49:39 +01:00
vsyscall.c