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.