From 9ad380ab4c38ca287e54086a953d6dc8ceccb0ef Mon Sep 17 00:00:00 2001 From: Garrett Wollman Date: Sat, 23 Apr 1994 21:39:18 +0000 Subject: Define new option, INACCURATE_MICROTIME_IS_OK. When this is defined, the NTP kernel PLL is disabled, and acquire_timer0() is enabled, thus opening the door for microtime() (and hence gettimeofday()) to return bogus timestamps. This option is necessary for the `pca' driver to work, but is implemented to underscore the fact that accurate timekeeping and the `pca' driver are incompatible at present. If someone writes a version of microtime() that works when the `pca' driver is being used, this can get junked. --- sys/conf/NOTES | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'sys/conf/NOTES') diff --git a/sys/conf/NOTES b/sys/conf/NOTES index a7bb75553877..16def71b021c 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -4,7 +4,7 @@ # # This kernel is NOT MEANT to be runnable! # -# $Id: LINT,v 1.62 1994/04/13 01:29:14 ache Exp $ +# $Id: LINT,v 1.63 1994/04/23 12:13:27 ache Exp $ # machine "i386" @@ -26,7 +26,7 @@ options "COM_MULTIPORT" #Multiport support in sys/isa/sio.c options "FIFO_TRIGGER=FIFO_TRIGGER_1" #Use this fifo value in sio.c options "COMPAT_43" #compatible with BSD 4.3 -options "SYMTAB_SPACE=112466" #This kernel needs LOTS of symtable +options "SYMTAB_SPACE=113498" #This kernel needs LOTS of symtable options GATEWAY #internetwork gateway options KTRACE #kernel tracing @@ -177,7 +177,13 @@ device snd1 at isa? port 0x388 device pca0 at isa? tty # +# The following option must be enabled in order for the pca driver to +# work. WARNING! BEWARE! CAUTION! ACHTUNG! VAROKAA! +# Enabling this option will result in the microtime() function (and hence +# gettimeofday(2) asnd the timestamps in bpf) giving incorrect results. +# DO NOT attempt to run NTP while playing audio with this driver. # +#options INACCURATE_MICROTIME_IS_OK + # options that have not been resolved yet -# pseudo-device log -- cgit v1.2.3