[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
Not running any VMs but I did have SR-IOV and VT-X enabled in the BIOS. Server has a HP B120i which is a fakeraid device and the drives are accessed as simple AHCI devices. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
In my case the host is not running any virtual machines. I have another similar HPE Gen9 server (without the HPE Smart HBA H240 SATA controller) that doesn't have the problem. So in my case I suspect the H240 controller is (at least part of) the problem. @phdonnelly, are you using VMs and/or do you have an H240 controller? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
With regards to the patch here: https://lists.linuxfoundation.org/pipermail/iommu/2021-October/060115.html It is mentioned this issue can occur if you are passing through a PCI device to a virtual machine guest. This patch seems like it never made it into the kernel. So I am curious if you are using any virtual machines on this host, and if any of them are mapping PCI devices from the host in. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
I hit this bug upgrading my home server (proliant microserver gen9) and it seems to be causing memory corruption when it occurs ( at least in combination with zfs ). Using zfs mirrored root I experienced this issue after only a few minutes uptime, with DMAR messages flooding the log and very high CPU usage. After rebooting with intel_iommu=off things are back to normal, but a zfs scrub indicated several thousand checksum errors detected on the root volume, some of them unrecoverable that had to be restored from backup, and a separate zfs RAIDZ1 volume experienced corrupted metadata and had to be rolled back with some data loss. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
If this question was meant for me: I cannot really say, in my case no VMs are involved at all. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
Is this related? https://lists.linuxfoundation.org/pipermail/iommu/2021-October/059955.html https://lists.linuxfoundation.org/pipermail/iommu/2021-November/060249.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
I tried the latest currently available 5.15 kernel (https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.36/amd64/, 5.15.36-051536-generic #202204271420 SMP Wed Apr 27 16:37:41 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux). The problem still occurs there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
Please give mainline kernel a try: https://wiki.ubuntu.com/Kernel/MainlineBuilds -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970453] Re: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970453 Title: DMAR: ERROR: DMA PTE for vPFN 0x7bf32 already set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
