> From: Ivan Voras <ivo...@freebsd.org> > Date: Tue, 23 Nov 2010 01:21:33 +0100 > Sender: owner-freebsd-curr...@freebsd.org > > On 11/22/10 13:56, John Baldwin wrote: > > On Friday, November 19, 2010 1:20:53 pm Jung-uk Kim wrote: > > >> I bet these are "legacy free" machines, right? I recently noticed > >> that recent Intel chipsets cause incredibly long delays when > >> non-existent ISA ports are accessed, most notably AT keyboard ports. > >> (My gut tells me it is going in and out of SMM repeatedly for > >> nothing.) Back in the old days, when we had real ISA bus, it used to > >> delay very short and fixed amount time. Those days, this behaviour > >> was even (ab)used as a delay function where a real timer is not > >> available yet. ;-) > >> > >> Try getting rid of all unnecessary device drivers from your kernel > >> configuration. > > Well, there are no ISA devices in the AMD64 GENERIC that I can see...
That's because you can't see it! % cat /sys/amd64/conf/DEFAULTS # # DEFAULTS -- Default kernel configuration file for FreeBSD/amd64 # # $FreeBSD: src/sys/amd64/conf/DEFAULTS,v 1.19.2.3.2.1 2010/06/14 02:09:06 kensmith Exp $ machine amd64 # Bus support. device isa # Pseudo devices. device mem # Memory and kernel memory devices device io # I/O device # UART chips on this platform device uart_ns8250 # Default partitioning schemes options GEOM_PART_BSD options GEOM_PART_EBR options GEOM_PART_EBR_COMPAT options GEOM_PART_MBR And, in GENERIC: # atkbdc0 controls both the keyboard and the PS/2 mouse device atkbdc # AT keyboard controller device atkbd # AT keyboard device psm # PS/2 mouse -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: ober...@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
