any scheduler/ipi/wakeup bug fixed in the last year?

Andriy Gapon avg at FreeBSD.org
Wed Dec 11 11:06:00 UTC 2019


On 11/12/2019 12:48, Andriy Gapon wrote:
> So, if I am not confused, it appears like possibly a notification from a waking
> CPU to the woken CPU (CPU3) was never delivered.
> Potentially, a problem with cpu_idle_wakeup() ?
> 
> I wonder if there have been any bug fixes in that area over the past year or so.
> Any help and pointers are welcome.

Hardware:
CPU: Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz (2400.05-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x406f1  Family=0x6  Model=0x4f  Stepping=1
FreeBSD/SMP: 2 package(s) x 14 core(s)

machdep.idle: acpi
machdep.idle_available: spin, mwait, hlt, acpi
machdep.idle_mwait: 1

-- 
Andriy Gapon


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