f4efd01f60
RTC state, then it may clobber the RTC index register, so the index register must be restored before using it to restore control registers in rtc_restore(). The following problems remain: - rtc_restore() is only called if pmtimer is configured. Buggy suspend/resumes are more likely to clobber the index register than a control register, so pmtimer is more needed than it used to be. - pmtimer doesn't exist for amd64. - Restoring of the RTC state may race with rtcintr(). If an RTC interrupt is handled before the state is restored, then rtcin(RTC_INTR) in rtcintr() may read from the wrong register, so rtcintr() may spin forever. This may be mitigated by the most common state clobbering being to turn off RTC interrupts. |
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.. | ||
acpica | ||
bios | ||
compile | ||
conf | ||
cpufreq | ||
i386 | ||
ibcs2 | ||
include | ||
isa | ||
linux | ||
pci | ||
svr4 | ||
xbox | ||
Makefile |