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/1777586 Title: Ubuntu Server 18.04 LTS aacraid error Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Bug description: I upgraded from a previous version of Ubuntu 14.04LTS to 18.04LTS and am now running into these raid adapter driver errors. The server ran fine in older version. My apologies as I lost the exact version, but it never had any errors like this version. Now when ever I try to copy files to the RAID 5 drive, or untar a file, I get these errors now after a few MB's of written data. Linux batboat 4.15.0-23-generic #25-Ubuntu SMP Wed May 23 18:02:16 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux batboat:/var/log$ lsb_release -rd Description: Ubuntu 18.04 LTS Release: 18.04 I have tried the IRQ debugging tips to no avail. I loaded in Debian9.4.0 and it only briefly showed this error once. But appears to be much more resilient and appears to work fine. Jun 19 00:02:21 batboat kernel: [ 498.770839] aacraid: Host adapter reset request. SCSI hang ? Jun 19 00:02:37 batboat kernel: [ 514.139167] aacraid: Host adapter reset request. SCSI hang ? Jun 19 00:02:37 batboat kernel: [ 514.795083] aacraid 0000:03:09.0: Adapter health - 199 Jun 19 00:02:37 batboat kernel: [ 514.800376] aacraid 0000:03:09.0: outstanding cmd: midlevel-0 Jun 19 00:02:37 batboat kernel: [ 514.800378] aacraid 0000:03:09.0: outstanding cmd: lowlevel-0 Jun 19 00:02:37 batboat kernel: [ 514.800381] aacraid 0000:03:09.0: outstanding cmd: error handler-0 Jun 19 00:02:37 batboat kernel: [ 514.800383] aacraid 0000:03:09.0: outstanding cmd: firmware-5 Jun 19 00:02:37 batboat kernel: [ 514.800385] aacraid 0000:03:09.0: outstanding cmd: kernel-0 Jun 19 00:02:37 batboat kernel: [ 514.800391] sd 4:0:0:0: Device offlined - not ready after error recovery Jun 19 00:02:37 batboat kernel: [ 514.800394] sd 4:0:0:0: Device offlined - not ready after error recovery Jun 19 00:02:37 batboat kernel: [ 514.800396] sd 4:0:0:0: Device offlined - not ready after error recovery Jun 19 00:02:37 batboat kernel: [ 514.800399] sd 4:0:0:0: Device offlined - not ready after error recovery Jun 19 00:02:37 batboat kernel: [ 514.800401] sd 4:0:0:0: Device offlined - not ready after error recovery To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777586/+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