Messages in this thread | | | From | Petr Mladek <> | Subject | [PATCH 0/3] watchdog/softlockup: Report overall time and some cleanup | Date | Thu, 24 Oct 2019 13:49:25 +0200 |
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This is rework of the softlockup improvements sent as https://lkml.kernel.org/r/20190819104732.20966-1-pmladek@suse.com based on feedback from Peter Zijlstra.
+ merged the two patches + moved some cleanup changes into separate patches + improved the code and commit messages
The main change is in 2nd patch. It fixes the time spent in softlockup.
Original:
[ 168.277520] watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [cat:4865] [ 196.277604] watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [cat:4865] [ 236.277522] watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [cat:4865] ^^^
New:
[ 480.372418] watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [cat:4943] [ 508.372359] watchdog: BUG: soft lockup - CPU#2 stuck for 52s! [cat:4943] [ 548.372359] watchdog: BUG: soft lockup - CPU#2 stuck for 89s! [cat:4943] [ 576.372351] watchdog: BUG: soft lockup - CPU#2 stuck for 115s! [cat:4943] ^^^^^ 1st and 3rd patch clean up the code.
Petr Mladek (3): watchdog/softlockup: Remove obsolete check of last reported task watchdog/softlockup: Report the overall time of softlockups watchdog/softlockup: Remove logic that tried to prevent repeated reports
kernel/watchdog.c | 67 ++++++++++++++++++++++++------------------------------- 1 file changed, 29 insertions(+), 38 deletions(-)
-- 2.16.4
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