Re: Random lockups on an email server - possibly kern/50168

[Dan LaBell <dan4l-nospam%verizon.net@localhost>]

On Mar 27, 2016, at 12:21 PM, D'Arcy J.M. Cain wrote:

[...]
> PS="`ps -ax -orss | awk '{ sum += $1} END {print sum}'`"
I think you're counting some memory more than once here.
If it's shared it can still be resident.  It's just mapped
into multiple processes.

> PROC="`grep '^Mem:' /proc/meminfo | awk '{print $3/1024}'`"
> [...]
>
> The other thing I see is that swap never gets used.  The system  
> appears
> to crash when real memory gets used up and swap used is always 0.
What happens if you force swap to be used, like mounting a mfs file  
system
larger than free memory, and filling it?