In what appeared similar https://bugzilla.redhat.com/show_bug.cgi?id=649766 it was recommended to set iommu=pt, but in our case that does not help.
It changes the messaging but sitll fails on boot: [ 75.256554] DMAR: [DMA Read] Request device [03:00.0] fault addr fec0e000 [fault reason 06] PTE Read access is not set [ 199.315689] blk_update_request: I/O error, dev sda, sector 1116802096 [ 199.345283] EXT4-fs error (device sda2): ext4_find_entry:1463: inode #34865359: comm ureadahead: reading directory lblock 0 [ 199.345284] blk_update_request: I/O error, dev sda, sector 399530240 [ 199.345294] blk_update_request: I/O error, dev sda, sector 399532288 [ 199.353290] sd 0:0:1:0: rejecting I/O to offline device [ 199.353314] sd 0:0:1:0: rejecting I/O to offline device ** Bug watch added: Red Hat Bugzilla #649766 https://bugzilla.redhat.com/show_bug.cgi?id=649766 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1679208 Title: Zesty (4.10.0-14) won't boot on HP ProLiant DL360 Gen9 with intel_iommu=on To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1679208/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs