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It seems that some i386 mothermoards either do not implement the

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day of week field correctly, or they remember bad values that are
written into the day of week field. For this reason, ignore the day
of week field when reading the clock on i386 rather than bailing if
it is set incorrectly.

Problems were seen on a number of platforms, including VMWare, qemu,
EPIA ME6000, Epox-3PTA and ABIT-SL30T.

This is a slightly different fix to that proposed by Ted in his PR,
but the same basic idea.

PR:		111117
Submitted by:	Ted Faber <faber@lunabase.org>
Approved by:	re (rwatson)
MFC after:	3 weeks
This commit is contained in:
David Malone 2007-07-27 09:34:42 +00:00
parent 34ed040030
commit 9be70a793e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=171612
2 changed files with 4 additions and 2 deletions
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3
sys/i386/isa/clock.c
View File

@ -703,7 +703,8 @@ inittodr(time_t base)
#else
ct.year += 2000;
#endif
/* Should we set dow = -1 because some clocks don't set it correctly? */
/* Set dow = -1 because some clocks don't set it correctly. */
ct.dow = -1;
if (clock_ct_to_ts(&ct, &ts)) {
printf("Invalid time in clock: check and reset the date!\n");
return;

3
sys/isa/atrtc.c
View File

@ -703,7 +703,8 @@ inittodr(time_t base)
#else
ct.year += 2000;
#endif
/* Should we set dow = -1 because some clocks don't set it correctly? */
/* Set dow = -1 because some clocks don't set it correctly. */
ct.dow = -1;
if (clock_ct_to_ts(&ct, &ts)) {
printf("Invalid time in clock: check and reset the date!\n");
return;