well the good news is system still has no AMD-Vi: Completion-Wait loop timed out
also unsure how to test this to find out why its running with out the performance gains IOMMU gave me before I do have some spare HDD's I could use to try bench marking with with out using ZFS to see if i can crash the system again with an older kernel and try and replicate the IOMMU performance gains / loss's pretty much the way ZFS worked it normally ramps up its speed with out IOMMU it normally started at 14 mbs then ramped up to around 100mbs ( takes a couple of days with 16tb) with IOMMU ( and the constant crashes ) it started around 100 mbs and ramped up to 900 mbs doing scrubs ( took around a day and a few reboots with 16tb )or I would bootup to FreeBSD ( which also had crashes so it looks like they have similar issue ) normally just to crash it quickly I just had to play a bluray disk whilst doing a srcub > Date: Wed, 20 Feb 2013 15:24:32 +0000 > From: [email protected] > To: [email protected] > Subject: [Bug 1073384] Re: AMD-Vi: Completion-Wait loop timed out > > Actually, the patch should not have affected the IOMMU performance. I'm > not quite familiar with ZFS. If you give me some pointers of how you do > your testing, I can try to experiment. Could you recheck the dmesg to > see if there are other issues? > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1073384 > > Title: > AMD-Vi: Completion-Wait loop timed out > > Status in “linux” package in Ubuntu: > Incomplete > > Bug description: > AMD-Vi: Completion-Wait loop timed out > > > I have an F2A85X-UP4 with 32 Gig Ram and amd-a10-5800k > > I have disabled turbo and any thing that might change in cpu freq > I also disabled cpu virtualization > > > I have a feeling this might be related to using ZFS as when ever I do > something that requires a lot of data from my ZFS pool of 16x HDD's this > seems to happen > > ppa:zfs-native/daily > > how ever I am sure it has happened before with out the pool imported > > and happened more often with c6 state enabled > > > any idea's where to start looking > > this happened with both 12.04 LTS and Ubuntu 12.10 > > how ever sticking with Ubuntu 12.10 as its video drivers seem to be > better and I can get a days use out of it with out this issue rearing > its head > > with 12.04 LTS it did not take long for mouse to become unresponsive > > > # uname -a > Linux aio 3.5.0-18-generic #29-Ubuntu SMP Fri Oct 19 10:26:51 UTC 2012 > x86_64 x86_64 x86_64 GNU/Linux > > > sorry using my windows box to post this as Ubuntu is doing that thing atm > and I am waiting for it to finish something before doing another reboot > --- > ApportVersion: 2.6.1-0ubuntu9 > Architecture: amd64 > DistroRelease: Ubuntu 12.10 > MarkForUpload: True > NonfreeKernelModules: zfs zcommon znvpair zavl zunicode > Package: linux (not installed) > ProcEnviron: > LANGUAGE=en_AU:en > TERM=xterm > PATH=(custom, no user) > LANG=en_AU.UTF-8 > SHELL=/bin/bash > Tags: quantal > Uname: Linux 3.6.8-030608-generic x86_64 > UnreportableReason: The running kernel is not an Ubuntu kernel > UpgradeStatus: No upgrade log present (probably fresh install) > UserGroups: > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1073384/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1073384 Title: AMD-Vi: Completion-Wait loop timed out To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1073384/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
