Thomas Gleixner a3ed0e4393 Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME ... Revert commits 92af4dcb4e ("tracing: Unify the "boot" and "mono" tracing clocks") 127bfa5f43 ("hrtimer: Unify MONOTONIC and BOOTTIME clock behavior") 7250a4047a ("posix-timers: Unify MONOTONIC and BOOTTIME clock behavior") d6c7270e91 ("timekeeping: Remove boot time specific code") f2d6fdbfd2 ("Input: Evdev - unify MONOTONIC and BOOTTIME clock behavior") d6ed449afd ("timekeeping: Make the MONOTONIC clock behave like the BOOTTIME clock") 72199320d4 ("timekeeping: Add the new CLOCK_MONOTONIC_ACTIVE clock") As stated in the pull request for the unification of CLOCK_MONOTONIC and CLOCK_BOOTTIME, it was clear that we might have to revert the change. As reported by several folks systemd and other applications rely on the documented behaviour of CLOCK_MONOTONIC on Linux and break with the above changes. After resume daemons time out and other timeout related issues are observed. Rafael compiled this list: * systemd kills daemons on resume, after >WatchdogSec seconds of suspending (Genki Sky). [Verified that that's because systemd uses CLOCK_MONOTONIC and expects it to not include the suspend time.] * systemd-journald misbehaves after resume: systemd-journald[7266]: File /var/log/journal/016627c3c4784cd4812d4b7e96a34226/system.journal corrupted or uncleanly shut down, renaming and replacing. (Mike Galbraith). * NetworkManager reports "networking disabled" and networking is broken after resume 50% of the time (Pavel). [May be because of systemd.] * MATE desktop dims the display and starts the screensaver right after system resume (Pavel). * Full system hang during resume (me). [May be due to systemd or NM or both.] That happens on debian and open suse systems. It's sad, that these problems were neither catched in -next nor by those folks who expressed interest in this change. Reported-by: Rafael J. Wysocki <rjw@rjwysocki.net> Reported-by: Genki Sky <sky@genki.is>, Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kevin Easton <kevin@guarana.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Salyzyn <salyzyn@android.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>		2018-04-26 14:53:32 +02:00
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postprocess	mm, page_alloc: wakeup kcompactd even if kswapd cannot free more memory	2018-04-05 21:36:27 -07:00
coresight-cpu-debug.txt	…
coresight.txt	…
events-kmem.rst	…
events-msr.rst	…
events-nmi.rst	…
events-power.rst	…
events.rst	New features:	2018-04-10 11:27:30 -07:00
ftrace-design.rst	…
ftrace-uses.rst	…
ftrace.rst	Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME	2018-04-26 14:53:32 +02:00
function-graph-fold.vim	…
histogram.txt	tracing: Add a clock attribute for hist triggers	2018-03-10 16:06:03 -05:00
hwlat_detector.rst	…
index.rst	…
intel_th.rst	…
kprobetrace.rst	…
mmiotrace.rst	…
ring-buffer-design.txt	…
stm.rst	…
tracepoint-analysis.rst	…
tracepoints.rst	…
uprobetracer.rst	…