Strange issue after early AP startup
Hans Petter Selasky
hps at selasky.org
Mon Jan 16 15:52:26 UTC 2017
Hi,
When booting I observe an additional 30-second delay after this print:
> Timecounters tick every 1.000 msec
~30 second delay and boot continues like normal.
Checking "vmstat -i" reveals that some timers have been running loose.
> cpu0:timer 44300 442
> cpu1:timer 40561 404
> cpu3:timer 48462822 483058
> cpu2:timer 48477898 483209
Trying to add delays and/or prints around the Timecounters printout
makes the issue go away. Any ideas for debugging?
Looks like a startup race to me.
--HPS
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