https://bugzilla.kernel.org/show_bug.cgi?id=151661 --- Comment #1 from Piotr Szymaniak <bugzie@xxxxxxxxxxx> --- (I'm a kernel bugzilla newbie and as newbie I'm not sure how much attention gets kernel bugzilla and do this gets along with mailing lists and the other way around. So I'm posting here my answers to David Carroll questions [1] (snipped just a bit)) # -- > Hi Piotr, > > You had indicated that a kernel using Alex Williamson's patch allowed > you to use the system correctly. Is that true? Hi David, I had to review my findings as I was a bit lost after trying so many different settings and Live distros. With intel_iommu=igfx_off on vanilla 4.7.0 kernel: - it works (Gentoo Linux) with Alex patch - it doesnt work (Gentoo Linux) without Alex patch > You also indicated that Ubuntu 14.04 worked, while 16.04 did not. Is > that true? Ubuntu 14.04 (and speaking here about Ubuntu I mean running amd64 image from usb stick - not sure, but I think it is 14.04.4 as it was latest available week+ ago) it doesnt print "AAC: Host adapter dead -1" and it works. Ubuntu 16.04 (as above, it is 16.04.1) every 10 seconds prints about "dead adapter", but works. When I've added intel_iommu=on on boot it doesnt work (similar DMAR errors as posted in dmesg without Alex patch). (both Ubuntus are amd64) > Looking at the aacraid driver shipped with the Ubuntu flavors seems to > be the same version of the driver. Do either of those kernel's have > Alex's patch applied for the 3805? I just used Live images so, sadly, I just dont know. > At this point, assuming the above statements are true, I would believe > that you would get the best results when using a kernel with Alex's > patches applied. Yeah, but I would love to get rid of those messages printed every ~10 seconds or at least know why they're there if adapter seems to work fine? If Ubuntu 14.04 and 16.04 share the same driver why one of them prints those messages and the other doesnt? # -- [1] https://www.mail-archive.com/vfio-users@xxxxxxxxxx/msg01747.html -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
