quad Opteron nmi watchdog soft lockup problems 4.2, 4,3, 4.4.1

I've acquired a used quad-opteron 6274 / Supermicro H8QG6-F server, with 128 Gb memory. However, compiling a kernel seems a sure recipe to receive lots of this - after which the machine is half-dead. I've noticed this running Debian's 4.2 kernel, 4.3 kernel and now a self-compiled 4.4.1 kernel.

quad Opteron nmi watchdog soft lockup problems 4.2, 4,3, 4.4.1

I've acquired a used quad-opteron 6274 / Supermicro H8QG6-F server, with 128 Gb memory. However, compiling a kernel seems a sure recipe to receive lots of this - after which the machine is half-dead. I've noticed this running Debian's 4.2 kernel, 4.3 kernel and now a self-compiled 4.4.1 kernel.