joseph, this bug goes all the way back to centos 5 and kernel 2.6.
i have a stable machine on the following system: cryptodan@capricorn:~$ inxi -Fxxxrpc0 System: Host: capricorn Kernel: 3.13.0-24-generic i686 (32 bit, gcc: 4.8.2) Console: tty 1 Distro: Ubuntu 14.04 trusty Machine: System: Dell product: PowerEdge 4600 Chassis: type: 17 Mobo: Dell model: 0H3009 version: A00 Bios: Dell version: A13 date: 10/21/2004 CPU(s): 2 Single core Intel Xeon CPUs (-HT-SMP-) cache: 1024 KB flags: (pae sse sse2) bmips: 11961.4 Clock Speeds: 1: 2990.346 MHz 2: 2990.346 MHz 3: 2990.346 MHz 4: 2990.346 MHz Graphics: Card: Advanced Micro Devices [AMD/ATI] Rage XL PCI bus-ID: 00:0e.0 chip-ID: 1002:4752 X-Vendor: N/A driver: N/A tty size: 100x35 Advanced Data: N/A out of X Network: Card-1: Intel 82557/8/9/0/1 Ethernet Pro 100 driver: e100 ver: 3.5.24-k2-NAPI port: e8c0 bus-ID: 00:08.0 chip-ID: 8086:1229 IF: eth2 state: down mac: 00:02:b3:4b:1b:d9 Card-2: Intel 82546EB Gigabit Ethernet Controller (Copper) driver: e1000 ver: 7.3.21-k8-NAPI port: bcc0 bus-ID: 08:06.0 chip-ID: 8086:1010 IF: eth0 state: down mac: 00:04:23:d0:b5:e2 Card-3: Intel 82546EB Gigabit Ethernet Controller (Copper) driver: e1000 ver: 7.3.21-k8-NAPI port: bc80 bus-ID: 08:06.1 chip-ID: 8086:1010 IF: eth1 state: up speed: 1000 Mbps duplex: full mac: 00:04:23:d0:b5:e3 Drives: HDD Total Size: 2099.6GB (0.1% used) 1: id: /dev/sda model: system size: 300.0GB serial: 8EDB485F temp: 0C 2: id: /dev/sdb model: homepart size: 1799.6GB serial: 326F485F temp: 0C Partition: ID: / size: 92G used: 377M (1%) fs: ext4 ID: /boot size: 922M used: 35M (5%) fs: ext4 ID: /usr size: 92G used: 745M (1%) fs: ext4 ID: /var size: 69G used: 527M (1%) fs: ext4 ID: /home size: 1.7T used: 69M (1%) fs: ext4 ID: swap-1 size: 24.00GB used: 0.00GB (0%) fs: swap RAID: System: supported: N/A No RAID devices detected - /proc/mdstat and md_mod kernel raid module present Unused Devices: none Sensors: None detected - is lm-sensors installed and configured? Repos: Active apt sources in file: /etc/apt/sources.list deb http://us.archive.ubuntu.com/ubuntu/ trusty main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ trusty main restricted deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted deb http://us.archive.ubuntu.com/ubuntu/ trusty universe deb-src http://us.archive.ubuntu.com/ubuntu/ trusty universe deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe deb http://us.archive.ubuntu.com/ubuntu/ trusty multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ trusty multiverse deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse deb http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse deb http://security.ubuntu.com/ubuntu trusty-security main restricted deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted deb http://security.ubuntu.com/ubuntu trusty-security universe deb-src http://security.ubuntu.com/ubuntu trusty-security universe deb http://security.ubuntu.com/ubuntu trusty-security multiverse deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse Info: Processes: 118 Uptime: 1:30 Memory: 123.6/11835.7MB Runlevel: 2 Gcc sys: N/A Client: Shell (bash 4.3.11 running in tty 1) inxi: 1.9.17 Any other kernel or server distribution presents the aacraid error. It is a 32bit Dell PowerEdge 4600. -- 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/1653162 Title: System won't boot after upgrade to 16.04 with 4.4.0 kernel Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Incomplete Status in linux source package in Yakkety: Won't Fix Bug description: I have a Dell PowerEdge 1800 with Dell CERC 1.5/6ch RAID controller in it. Everything worked fine under Ubuntu 14.04.1. When I upgraded to 16.04.1 the system won't boot. It can't find the root filesystem. I see errors about host adapter dead on the screen many times. This is with kernel 4.4.0-57 and with 4.8.0-32. When I switch back to kernel 3.13.0-105 the system boots just fine. I have mptbios 5.06.04. The CERC card says bios version 4.1-0 [Build 7403] When booting into the ercovery kernel I'm getting error messages about host adapter dead. Eventually I get a message: "aacraid: aac_fib_send: first asynchronous command timed out. Usually a result of a PCI interrupt routing problem update moher board BIOS or consider utilizing one of the SAFE mode kernel options (acpi, apic etc)" Using kernel parameter "intel_iommu=on" doesn't help. This was suggested on a post that I saw about these errors. Booting with "noapic" didn't help. Booting with "noapic noacpi" didn't help. I've also tried the dkms modules from Adaptec and that doesn't seem to help either. I can't figure out how to upgrade the firmware or BIOS on the system from Ubuntu either. This may be related to this bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552551?comments=all --- ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=beec17b5-eac8-4e94-ac99-65b63c428b77 InstallationDate: Installed on 2014-02-24 (1039 days ago) InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1) IwConfig: eth1 no wireless extensions. lo no wireless extensions. Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Dell Computer Corporation PowerEdge 1800 Package: linux (not installed) ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-105-generic root=UUID=83e1b87e-adb9-4798-a6e0-18d401c91a4a ro nosplash noplymouth ProcVersionSignature: Ubuntu 3.13.0-105.152-generic 3.13.11-ckt39 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-105-generic N/A linux-backports-modules-3.13.0-105-generic N/A linux-firmware 1.157.6 RfKill: Tags: xenial Uname: Linux 3.13.0-105-generic x86_64 UpgradeStatus: Upgraded to xenial on 2016-12-25 (3 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/01/2004 dmi.bios.vendor: Dell Computer Corporation dmi.bios.version: A00 dmi.board.name: 0X7500 dmi.board.vendor: Dell Computer Corporation dmi.board.version: A00 dmi.chassis.type: 17 dmi.chassis.vendor: Dell Computer Corporation dmi.modalias: dmi:bvnDellComputerCorporation:bvrA00:bd09/01/2004:svnDellComputerCorporation:pnPowerEdge1800:pvr:rvnDellComputerCorporation:rn0X7500:rvrA00:cvnDellComputerCorporation:ct17:cvr: dmi.product.name: PowerEdge 1800 dmi.sys.vendor: Dell Computer Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653162/+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