On Wednesday, December 21, 2016 02:40:09 PM Julian Elischer wrote: > On 21/12/2016 3:44 AM, John Baldwin wrote: > > Author: jhb > > Date: Tue Dec 20 19:44:44 2016 > > New Revision: 310336 > > URL: https://svnweb.freebsd.org/changeset/base/310336 > > > > Log: > > Don't spin in pause() during early boot for kthreads other than thread0. > > > > pause() uses a spin loop to simulate a sleep during early boot. However, > > we only need this for thread0 to get far enough in the boot process to > > enable timers (at which point pause() can sleep). For other kthreads, > > sleeping in pause() is ok as the callout will be scheduled and will > > eventually fire once thread0 initializes timers. > > maybe we just need to depend on a variable "have_timers" > that is independent of the cold/hot/whatever settings. > first code to enable a timer sets it.
Eventually I think some cold checks will devolve to that (and/or cold will just go away). We aren't quite at that point yet however (though we are getting closer). -- John Baldwin _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
