Megasas driver lock?
avleen at gmail.com
Sun Mar 1 21:47:22 CST 2009
Running Ubuntu with a 2.6.24-23 kernel.
For a few months, a seeming "random" times, the server has been crashing
and resetting or locking up, with no diagnostic data returned.
Running various diagnostic tools hadn't revealed anything.
Most of the crashes I'm aware of had a common trait, where there was a
lot of disk activity (lots of interrupts from megasas).
I tried to reproduce it a few times with bonnie but couldn't make the
It happened again tonight, and I saw this on a terminal I fortunately
kernel: [3542884.516547] Disabling IRQ #16
IRQ16 is megasas.
This was moments after our monitoring system reported a system load of
just over 85.
The box deadlocked.
Does anyone have any suggestions? I'm out of ideas.
More information about the Linux-PowerEdge