perfSONAR User Q&A and Other Discussion

[Phil Reese <>]

Hi,

We're trying to get the current production version of PS installed on a 
Dell.  We want to make this a 100g tester box, so have a 100g Mellanox 
MCX456A-ECA card installed.

After a normal install of PS, just before the system would come up, we 
consistently get the following error:

Loading mlx5_core.ko module
Out of memory: Kill process 231 (insmod) score 1 or sacrifice child
Killed process 231, UID 0, (insmod) total-vm:1424kV, anon-rss: 320kB, 
file-rss:12kB

And the system is hung, only a power cycle brings it back.

Moving to single user, we can get on the system but even moving all the 
mlx* drivers out of the way, the error still happens.

We're pretty sure there is an easy fix but wanted to ask this group 
before investing more time into the effort.  Really would like to see 
PS4 and Centos 7 as soon a possible.

Thanks,
Phil