[Soekris] NET4801 - hw clock is spinning too fast...
manacker at lot66.com
Tue Jan 24 17:17:01 UTC 2006
Ted Phelps wrote:
> Mark Anacker writes:
>>>Are you seeing this on more than one 4801?
>>I'm working with 3 right now - they all seem to do this.
> Ouch. I've never seen mine do this. Could too much power cause a
> clock to spin too fast?
I wouldn't think so - those are supposed to be crystal-controlled. And it's the
12v adaptor that came with the box.
> The timer patch will cause Linux to use an entirely different clock to
> manage the system time, so it has a reasonable chance of working even
> if there's something wrong with the RTC. Of course, if the
> applications are talking directly to the RTC then that won't help, but
> otherwise it might do the trick. Is it feasible to install a 2.6
> kernel (with timer patch) on a test machine to see if this approach
> would help?
I'll probably have to try, but it's not simple. I've managed to get SUSE 10 on
one of these things, which is a 2.6-based distro. I'm going to try the tests on
it and see if it behaves the same way.
>>The seconds counter spins up roughly 3x normal speed. I suppose the
>>RTC driver could have an issue, but given that the BIOS counter is
>>running too fast also (1.28 comBIOS), I doubt it.
> Wouldn't the BIOS counter use the RTC?
I would think so. We're leaning toward a hardware fault in this batch of
boards, but it *could* be an O/S problem too. That's why I wanted to know if
anyone else (especially running a Linux 2.4 kernel) saw the same problem.
SecureD Services, Inc.
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