I raised this issue before on LKML and everyone seemed to be ok with changing
the extent of rtc.c to 0x8:
http://marc.theaimsgroup.com/?l=linux-kernel&m=104478057030481&w=2
I have been running the following patch on three of my Linux servers for
the last couple of weeks with no problems, and two of those server were
testing the watchdog timer that uses port 79h.
Please apply this patch.
--rustyl
--- drivers/char/rtc.c.orig 2003-02-26 11:00:50.000000000 -0800
+++ drivers/char/rtc.c 2003-02-26 11:00:43.000000000 -0800
@@ -47,7 +47,7 @@
#define RTC_VERSION "1.11"
-#define RTC_IO_EXTENT 0x10 /* Only really two ports, but... */
+#define RTC_IO_EXTENT 0x8
/*
* Note that *all* calls to CMOS_READ and CMOS_WRITE are done with
-
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