CVS commit: src/sys/kern

["Andrew Doran" <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Sun Dec  1 13:20:42 UTC 2019

Modified Files:
        src/sys/kern: kern_runq.c sched_4bsd.c sched_m2.c

Log Message:
PR port-sparc/54718 (sparc install hangs since recent scheduler changes)

- sched_tick: cpu_need_resched is no longer the correct thing to do here.
  All we need to do is OR the request into the local ci_want_resched.

- sched_resched_cpu: we need to set RESCHED_UPREEMPT even on softint LWPs,
  especially in the !__HAVE_FAST_SOFTINTS case, because the LWP with the
  LP_INTR flag could be running via softint_overlay() - i.e. it has been
  temporarily borrowed from a user process, and it needs to notice the
  resched after it has stopped running softints.


To generate a diff of this commit:
cvs rdiff -u -r1.50 -r1.51 src/sys/kern/kern_runq.c
cvs rdiff -u -r1.38 -r1.39 src/sys/kern/sched_4bsd.c
cvs rdiff -u -r1.34 -r1.35 src/sys/kern/sched_m2.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.