em watchdogs - OS involvement
wawa at yandex-team.ru
Wed Oct 31 04:27:34 PDT 2007
Jack Vogel wrote:
> Things just keep getting stranger... its no wonder I didn't see this...
> I had been trying to repro the watchdog on a machine in my cube at work
> without success, but in the test Lab they were successful. I scratched my
> head for a while wondering why...
> But then I realized I had the Sept snapshot in my cube, reinstalled it to
> the Oct snapshot and now it watchdogs like a champ too.....
> Another bit of data, if I define DEVICE_POLLING on the Oct. snap it
> also will work.
> SOOOOO, what changes were made to interrupts between Sept and
> October, something I need to do perhaps that wasnt done??
> Any ideas??
Shared irq is a very big problem w/FAST_INTR seems to be. There are a
lot of drops if ethernet shares IRQ w/UHCI e.g.
Maybe you've seen this issue.
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