Hello there, We're facing an strange error message after migrating from 2.4 to 3.1 in one of our customers. Hopefully some of you guys have faced a similar error and can give us some ideas. Operating system logs are full of entries like the following: The following is only an harmless informational message. Unless you get a _continuous_flood_ of these messages it means everything is working fine. Allocations from irqs cannot be perfectly reliable and the kernel is designed to handle that. */opt/otrs/bin/c: page allocation failure*. order:1, mode:0x20 Pid: 5548, comm: /opt/otrs/bin/c Not tainted 3.1.0-1.2-desktop #1 Thanks in advance for your help, Leonardo Certuche www.itconsultores.com.co Medellín, Colombia