On 19 Mar 2012, Carolyn Wyborny said: >>you'll see that I tested that, and it doesn't work :( even if it did >>work, it shouldn't be needed: the driver attempts to turn off PCIe ASPM >>on affected NICs, and fails, apparently because *something* turns it >>back on again. >> > The driver attempts to disable L0s state, not the entire feature. It
It tries to disable L1 state as well (or it did when I tested this last, although I suspect you're right and it may leave L1 turned on these days: judging by the contents of e1000_82574_info, anyway.) > is also required that the device upstream on the bus from the 82574L > have this disabled. Yes, I agree there appears to be something in the > os that either ren-enables or fails to disable the feature on the > upstream device, as desired. Platforms/systems also appear to vary in > this regard, so the solutions may vary a bit as well. > > Its worth trying your solution as well if what I suggested doesn't > work, but there is not one solution that fits all, unfortunately. I don't *have* a solution. :( 'setpci by hand some unknown amount of time after booting once the interface has stabilized' hardly counts as a solution of any sort. It's, at best, a workaround that lets me use my systems without hourly lockups until a real solution is found. (To clarify: manual setpci to force off the ASPM bits is the only thing that works for me. The driver's automatic disabling of L0s and L1 doesn't work: nor does booting with pcie_aspm=off. In both cases, I end up with both L0s and L1 turned on, and a lockup some time later, unless I setpci the bits off by hand.) -- NULL && (void) ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
