msk driver issues [was: Re: vlan issues with 7.0-RC3]

[Christopher Cowart]

On Fri, Mar 07, 2008 at 02:00:04PM +0900, Pyun YongHyeon wrote:
>On Sun, Mar 02, 2008 at 07:57:28PM -0800, Christopher Cowart wrote:
>> While I have your attention, I am also suffering from a problem that was
>> reported to -questions here[1]. About 3 times a day, I'll see the
>> watchdog timeout (missed Tx interrupts) message get logged, after which
>> point the NIC is useless until I reboot. Any ideas?
>> 
>> [1] http://lists.freebsd.org/pipermail/freebsd-questions/2008-February/169633.html
> 
> I'll have a look.

Pyun recommended the following workaround in /boot/loader.conf:
hw.msk.msi_disable="1"

The NIC has now been working reliably for nearly 3 days. 

Pyun YongHyeon wrote:
| Glad to hear that. The knob exists to work-around hardware bugs
| present in some PCI bridges that can't handle MSI correctly.
| Normally FreeBSD black-lists known PCI bridges that have this kind
| of bugs but the list may/may not complete. I'm not sure whether this
| is really a bug in PCI bridge on MacBook but most owners of MacBook 
| seems to require the knob.

Thanks for the help.

-- 
Chris Cowart
Network Technical Lead
Network & Infrastructure Services, RSSP-IT
UC Berkeley
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