On Mon, 5 Feb 2007 16:52:24 -0800 Andrew Morton <[EMAIL PROTECTED]> wrote:
> On Mon, 05 Feb 2007 18:35:06 -0600 > Robert Hancock <[EMAIL PROTECTED]> wrote: > > > Daniel Barkalow wrote: > > > On Sun, 4 Feb 2007, Robert Hancock wrote: > > > > > >> Something's busted with forcedeth in 2.6.20-rc6-mm3 for me relative to > > >> 2.6.20-rc6. There's no errors in dmesg, but it seems no packets ever get > > >> received and so the machine can't get an IP address. I tried reverting > > >> all the > > >> -mm changes to drivers/net/forcedeth.c, which didn't help. The network > > >> controller shares an IRQ with the USB OHCI controller which is receiving > > >> interrupts, so it doesn't seem like an interrupt routing problem, though > > >> I > > >> suppose something wierd could be happening there. > > > > > > IIRC, forcedeth tries to use MSI by default. Perhaps the hardware is > > > using > > > it, but the kernel thinks enabling it didn't work? I think there's a > > > module option for forcedeth to disable MSI, which might be worth a try to > > > see if it has any effect. > > > > I must have messed something up when testing before - reverting to > > forcedeth.c from 2.6.20-rc6 does indeed fix the problem. And it doesn't > > seem like no packets at all are received with the -mm3 version (driver > > version 0.60), either - if I do a tcpdump I can get Ethernet packets > > showing up, but I can't ping my router so it seems like something isn't > > getting through properly. With the 2.6.20-rc6 version (driver version > > 0.59) it works fine. I switched back and forth between versions and this > > seems repeatable. > > > > I don't think it's MSI related, the CK804 version of these controllers > > doesn't support MSI and the driver shouldn't be trying to use it. I > > tried the MSI and MSI-X disable options on the 0.60 driver, but that > > didn't help. > > > > OK, thanks. Jeff, please note that the forcedeth changes in git-netdev-all > have a problem. Well all the forcedeth patches seems to have wandered into mainline anyway. Please test current git (or tomorrow's git snapshot), see if it works? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
