From: Petr Mladek <pmladek@suse.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Laurence Oberman <loberman@redhat.com>,
Vincent Whitchurch <vincent.whitchurch@axis.com>,
Michal Hocko <mhocko@suse.com>,
linux-kernel@vger.kernel.org, Petr Mladek <pmladek@suse.com>
Subject: [PATCH v2 0/7] watchdog/softlockup: Report overall time and some cleanup
Date: Thu, 11 Mar 2021 13:21:23 +0100 [thread overview]
Message-ID: <20210311122130.6788-1-pmladek@suse.com> (raw)
Resending. The original post is [1].
I dug deep into the softlockup watchdog history when time permitted
this year. And reworked the patchset that fixed timestamps and
cleaned up the code[2].
I split it into very small steps and did even more code clean up.
The result looks quite strightforward and I am pretty confident
with the changes.
[1] v2: https://lore.kernel.org/r/20201210160038.31441-1-pmladek@suse.com
[2] v1: https://lore.kernel.org/r/20191024114928.15377-1-pmladek@suse.com
Petr Mladek (7):
watchdog: Rename __touch_watchdog() to a better descriptive name
watchdog: Explicitly update timestamp when reporting softlockup
watchdog/softlockup: Report the overall time of softlockups
watchdog/softlockup: Remove logic that tried to prevent repeated
reports
watchdog: Fix barriers when printing backtraces from all CPUs
watchdog: Cleanup handling of false positives
Test softlockup
fs/proc/consoles.c | 5 +++
fs/proc/version.c | 7 ++++
kernel/watchdog.c | 97 ++++++++++++++++++++++++++--------------------
3 files changed, 66 insertions(+), 43 deletions(-)
--
2.26.2
next reply other threads:[~2021-03-11 12:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-11 12:21 Petr Mladek [this message]
2021-03-11 12:21 ` [PATCH v2 1/7] watchdog: Rename __touch_watchdog() to a better descriptive name Petr Mladek
2021-03-11 12:21 ` [PATCH v2 2/7] watchdog: Explicitly update timestamp when reporting softlockup Petr Mladek
2021-03-11 12:21 ` [PATCH v2 3/7] watchdog/softlockup: Report the overall time of softlockups Petr Mladek
2021-03-11 12:21 ` [PATCH v2 4/7] watchdog/softlockup: Remove logic that tried to prevent repeated reports Petr Mladek
2021-03-11 12:21 ` [PATCH v2 5/7] watchdog: Fix barriers when printing backtraces from all CPUs Petr Mladek
2021-03-11 12:21 ` [PATCH v2 6/7] watchdog: Cleanup handling of false positives Petr Mladek
2021-03-11 12:21 ` [PATCH v2 7/7] Test softlockup Petr Mladek
2021-03-15 14:04 ` c928e9b143: BUG:soft_lockup-CPU##stuck_for#s![perf:#] kernel test robot
2021-03-16 11:43 ` Petr Mladek
-- strict thread matches above, loose matches on Subject: below --
2020-12-10 16:00 [PATCH v2 0/7] watchdog/softlockup: Report overall time and some cleanup Petr Mladek
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