>-----Original Message----- >From: Allan, Bruce W [mailto:bruce.w.al...@intel.com] >Sent: Monday, January 31, 2011 3:06 PM >To: Nix >Cc: e1000-devel@lists.sourceforge.net >Subject: Re: [E1000-devel] 82754L spontaneous freeze networking woes continue >in >2.6.37 > >Because lspci simply reads the PCI configuration space (IIRC), I doubt it >is reporting incorrect information. The e1000e driver uses the kernel >API to disable ASPM (when CONFIG_PCIEASPM is enabled in the kernel config >otherwise it writes directly to the PCI configuration space to disable >ASPM). Assuming your kernel config has CONFIG_PCIEASPM enabled, my guess >at this point would be there is something broken in the kernel. With ASPM >L0s enabled, the 82574 (and other parts supported by the driver) will most >definitely have issues, so we need to find out what is broke and fix it.
Since it does appear to be a problem with the kernel, a brute force method to work around the issue is to manually disable ASPM (I suggest first try disabling only ASPM L0s) using setpci. If disabling ASPM L0s is not enough then disable ASPM L1 in both the 82574 and upstream PCI bridge. ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ 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
