Date: Tue, 10 Apr 2007 16:14:18 -0600 From: Scott Long <scottl@samsco.org> To: Julian Elischer <julian@elischer.org> Cc: freebsd-current <freebsd-current@freebsd.org>, Jack Vogel <jfvogel@gmail.com> Subject: Re: WOL question Message-ID: <461C0C3A.7010304@samsco.org> In-Reply-To: <461C08DF.8010201@elischer.org> References: <2a41acea0704101439l17ba9347o8b9844416dbb25a1@mail.gmail.com> <461C08DF.8010201@elischer.org>
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Julian Elischer wrote: > Jack Vogel wrote: >> I am hoping someone here who has more familiarity with the ACPI >> code can enlighten me.... >> >> I have an internal bug filed complaining that FreeBSD disables >> wake-on-lan on the hardware. This means that if you boot, say, >> Linux, even Knoppix as a quickie, and then shutdown, if the >> hardware supports it, it will be left in a state where a magic-packet >> wakeup will work. However, even if I boot up a FreeBSD kernel >> with NO em driver, and then shutdown, it undoes the WOL setup. >> >> Now, I would like to have explicit WOL support added into the >> em driver, but before I even worry about that I need to understand >> where the kernel turns this off without the driver even needed. >> >> I've looked around at the dev/acpi and arch/acpi code and at >> least so far I'm having a hard time getting an adequate picture >> to know how it happens. >> >> Jack >> _______________________________________________ >> freebsd-current@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-current >> To unsubscribe, send any mail to >> "freebsd-current-unsubscribe@freebsd.org" > > I think I heard once that some BIOSes turn it off during the boot cycle > somewhere and it is up to the OS to turn it back on. I do know that some > BIOSes > phuck with the NIC enough to stop IPMI from working during the boot. > That would make sense; you don't want the card to generate an NMI during boot from a spurius WOL package before the system is ready to handle it. Scott
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