Re: 82571EB: Detected Hardware Unit Hang
From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Date: 2012-07-16 16:08:14
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On Mon, 16 Jul 2012, Ben Hutchings wrote:
On Sun, 2012-07-15 at 10:35 -0300, Henrique de Moraes Holschuh wrote:quoted
On Sun, 15 Jul 2012, Dave, Tushar N wrote:quoted
Somehow setting max payload to 256 from BIOS does not set this value for all devices. I believe this is a BIOS bug.And preferably, Linux should complain about it. Since we know it is going to cause problems, and since we know it does happen, we should be raising a ruckus about it in the kernel log (and probably fixing it to min(path) while at it)... Is this something that should be raised as a feature request with the PCI/PCIe subsystem?The feature is there, but we ended up with: commit 5f39e6705faade2e89d119958a8c51b9b6e2c53c Author: Jon Mason [off-list ref] Date: Mon Oct 3 09:50:20 2011 -0500 PCI: Disable MPS configuration by default But you are welcome to share use of the fixup_mpss_256() quirk.
Meh. I'd be happy with a warning if MPSS decreases when walking up to the tree root... i.e. a warning if any child has a MPSS larger than the parent. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ 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