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SubjectRe: [patch 2.6.24-rc3] rtc-cmos alarm acts as oneshot

* David Brownell <david-b@pacbell.net> wrote:

> Start making the rtc-cmos alarm act more like a oneshot alarm by
> disabling that alarm after its IRQ fires. (ACPI hooks are also
> needed.)
>
> The Linux RTC framework has previously been a bit vague in this area,
> but any other behavior is problematic and not very portable. RTCs
> with full YYYY-MM-DD HH:MM[:SS] alarms won't have a problem here.
> Only ones with partial match criteria, with the most visible example
> being the PC RTC, get confused. (Because the criteria will match
> repeatedly.)
>
> Update comments relating to that oneshot behavior and timezone
> handling. (Timezones are another issue that's mostly visible with
> rtc-cmos. That's because PCs often dual-boot MS-Windows, which likes
> its RTC to match local wall-clock time instead of UTC.)

Cool. I'm still wondering about:

http://bugzilla.kernel.org/show_bug.cgi?id=7014

basically, we had universally working /dev/rtc before, now it appears we
dont have it anymore. Or were the problems in this bugzilla present with
the old code too?

Ingo


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