> Date: Sun, 5 Apr 2015 18:44:43 +0200 > From: Evgeniy Sudyr <[email protected]> > > Stuart, > > as part of troubleshooting, BIOS was upgraded from R 3.0 to latest R 3.2 > > http://www.supermicro.com/products/motherboard/Xeon/C600/X9SRW-F.cfm > X9SRW5.115 > > How big chances are it hitted bug which was fixed in latest BIOS > relase and this will not occurs again? Did you noticed something we > can check with Supermicro support to make sure?
So far I've not seen any real evidence that the BIOS is causing problems. Ted noticed the higher-than-usual ACPI memory usage, suggesting a memory leak. This made Stuart suggest that it might be worth updating your BIOS. But we haven't actually established that there is indeed a memory leak. In fact the information you posted earlier suggests that there is no ACPI memory leak, or at least not one directly related to executing AML. You'll really need to do some digging yourself here. Look at the vmstat -m output immediately after booting your machine. Then keep looking at it periodically and identify the memory types and pools that keep growing. For malloc'ed memory look at the "MemUse" column under "Memory statistics by type". For pools, look at the "InUse" column under "Memory resource pool statistics".
