[asterisk-users] Bug#557262: 2.6.31+2.6.31.4: XFS - All I/O locks up to D-state after 24-48 hours (sysrq-t+w available) - root cause found = asterisk

[Luki]

> When this bug occurs, it freezes I/O to all devices and the only way to
> recover is to reboot the system.

Are you running asterisk with realtime priority (-p)?

I once managed to take town a box with a dial plan loop; asterisk was
taking to 100% CPU and because it had highest priority, nothing else
would run. Kernel would respond to pings, but that's it. We no longer
use realtime priority for that reson :).

Luki