Date: Wed, 22 Feb 2006 12:04:33 -0500 From: John Baldwin <jhb@freebsd.org> To: Kazuaki Oda <kaakun@highway.ne.jp> Cc: current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: [PATCH] possible fix for the runtime going backwards warnings Message-ID: <200602221204.35413.jhb@freebsd.org> In-Reply-To: <43FC951E.2070002@highway.ne.jp> References: <200602211047.06599.jhb@freebsd.org> <200602221101.41027.jhb@freebsd.org> <43FC951E.2070002@highway.ne.jp>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wednesday 22 February 2006 11:45, Kazuaki Oda wrote: > John Baldwin wrote: > > The pagezero ones are truly odd. calcru() shouldn't be called for kthreads > > very often (if at all). I wonder if your tickrate is changing out from under > > you. Try editing sys/i386/i386/tsc.c and where it does 'set_cputicker(rdtsc, > > tsc_freq, 1)' change the last parameter to '0' and see if they go away. > > > > I still get calcru messages too. And I have noticed that I get these > messages when I run ps or top command. When we run ps, > fill_kinfo_proc_only() is called, and I think calcru() and calccru() > for kthreads are called in that function. Ok, that makes sense (as to why calcru() is getting invoked). I would try the change I suggested earlier of forcing the tsc to be treated as statically scaled rather than dynamic. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200602221204.35413.jhb>