Re: msk watchdog timeout

On 5/20/07, Pyun YongHyeon <pyunyh_at_gmail.com> wrote:
> On Sun, May 20, 2007 at 09:39:54PM -0500, Li-Lun Leland Wang wrote:
>  > On 5/20/07, Pyun YongHyeon <pyunyh_at_gmail.com> wrote:
>  > >On Mon, May 21, 2007 at 01:41:24AM +0800, Li-Lun Wang (Leland Wang) wrote:
>  > > > I just installed 7.0-current as of May 3 on my new computer that comes
>  > > > with an on-board Marvell Yukon Gigabit Ethernet.  Every now and then
>  > > > if the network throughput comes near several hundred kbytes, I get the
>  > > > msk0 watchdog timeout messages:
>  > > >
>  > > >      kernel: msk0: watchdog timeout
>  > > >      msk0: watchdog timeout (missed Tx interrupts) -- recovering
>  > > >
>  > > > Although it says recovering, the interface never comes back alive.
>  > >
>  > >The above message indicates the driver sent all pending transmission
>  > >requests but the driver didn't receive corresponding Tx completion
>  > >interrupts. Not recovering from the watchdog timeout means there are
>  > >another issues on the driver. However as disabling MSI fixed the
>  > >issue, I guess it's not fault of msk(4) and it comes from bad/broken
>  > >MSI implementation of your system. I guess it's time to add your
>  > >chipset to a PCI quirk table in order to blacklist it.
>  >
>  > I do reckon that MSI doesn't work on earlier Intel chipsets.  Mine is
>  > P965 (on a gigabyte GA-965P-DS3 rev 1.3), which I suppose is recent
>  > enough to support MSI, isn't it?  Or could there be other problems
>
> Using latest chipsets does not necessarily guarantee working MSI.

I see.  I think we should maybe add P965 to the PCI quirk list for
broken MSI, then?

>  > possible?
>  >
>
> Yes. But I couldn't find possible issue on msk(4) yet.

Maybe I was not clear enough.  Could there be something else that
causes MSI to not working correctly other than the chipset?  I was
just wondering why I didn't see too many broken MSI reports if most
Intel chipsets are broken.

-- llwang

P.S.  I do greatly appreciate your efforts on msk(4).