Module Name: src
Committed By: martin
Date: Sun Sep 23 17:46:16 UTC 2018
Modified Files:
src/sys/kern [netbsd-8]: kern_synch.c
Log Message:
Pull up following revision(s) (requested by bouyer in ticket #1031):
sys/kern/kern_synch.c: revision 1.317
In mi_switch(), also call pserialize_switchpoint() if we're not switching
to another lwp, as proposed on
http://mail-index.netbsd.org/tech-kern/2018/07/20/msg023709.html
Without it, on a SMP machine with few processes running (e.g while
running sysinst), pserialize could hang for a long time until all
CPUs got a LWP to run (or, eventually, forever).
Tested on Xen domUs with 4 CPUs, and on a 64-threads AMD machine.
To generate a diff of this commit:
cvs rdiff -u -r1.311.10.1 -r1.311.10.2 src/sys/kern/kern_synch.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
