Daniel, it will help immensely if you filed a new report with the Ubuntu repository kernel (not mainline/upstream) via a terminal: ubuntu-bug linux
Please feel free to subscribe me to it. For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1582858 Title: kernel 4.4.0-22-generic in 16.04 sees no disks on HP Proliant DL165 G7 if IOMMU is enabled Status in linux package in Ubuntu: Incomplete Bug description: On a HP Proliant DL165 G7 I upgraded from 14.04.3 LTS to 16.04 LTS (I know, not supported). After reboot, the new kernel was loaded by GRUB, but failed to find the disks installed in the system (setup working for almost 2 years, standard HP setup with the SATA controller in AHCI mode and AHCI enabled during BIOS). It then dropped to a shell in initramfs, after hundreds (thousands?) of identical errors: [...] AMD-Vi: Event Logged [IO_PAGE_FAULT] device=xxx adress=yyy flags=0x... and the final error messages: ata3: softreset failed (1st FIS failed) ata4: softreset failed (1st FIS failed) ata3: limiting SATA link speed to 1.5 Gbps ata3: softreset failed (1st FIS failed) ata4: limiting SATA link speed to 1.5 Gbps ata4: softreset failed (1st FIS failed) ata3: reset failed, giving up ata4: reset failed, giving up The system disks are on ata1 and ata2, though. I tried booting the system from different other 16.04 boot media (ubuntu-16.04-server-amd64.iso, ubuntu-16.04-desktop-amd64.iso) into a rescue system. I also got the [...] AMD-Vi: Event Logged ... messages. When the rescue shell was running, the system disks were also not detected, the installer I started as an experiment only offered the (USB disk) boot medium itself as installation target. The desktop installer and kernel then crashed with error messages about squashfs (sorry, didn't record those). Without any change, the same system boots without issues from a 14.04 boot image, all disks present. Also, the 16.04 system boots fine if the old 3.13.0-86 kernel is selected in the GRUB menu. After some fiddling around, I turned off the IOMMU in the server's BIOS (under PCiExpress) - and all went back to normal, without any change on the installed system. Kernel 4.4.0-22-generic now boots just fine from the LVM-Root. So this is WORKSFORME now, but maybe somebody should look into it. I do believe that Proliants are quite common out there. If needed, I'll provide more info if possible - but currently I wouldn't know what. --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 May 17 18:50 seq crw-rw---- 1 root audio 116, 33 May 17 18:50 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=d46c7c15-9d36-4d87-930d-e43d447e8855 InstallationDate: Installed on 2012-12-22 (1244 days ago) InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2) IwConfig: Error: [Errno 2] No such file or directory MachineType: HP ProLiant DL165 G7 Package: linux (not installed) PciMultimedia: ProcEnviron: LANGUAGE=en_US:en TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-generic root=/dev/mapper/vg0-root ro net.ifnames=0 rootfstype=ext4 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 RelatedPackageVersions: linux-restricted-modules-4.4.0-22-generic N/A linux-backports-modules-4.4.0-22-generic N/A linux-firmware 1.157 RfKill: Error: [Errno 2] No such file or directory Tags: xenial Uname: Linux 4.4.0-22-generic x86_64 UpgradeStatus: Upgraded to xenial on 2014-05-25 (725 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 07/27/2012 dmi.bios.vendor: HP dmi.bios.version: O37 dmi.chassis.type: 23 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrO37:bd07/27/2012:svnHP:pnProLiantDL165G7:pvr:cvnHP:ct23:cvr: dmi.product.name: ProLiant DL165 G7 dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1582858/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
