Hi All.
This week we had quite some linux kernel messages in the /var/log/messages of our SAP HANA appliance:
Mar 20 06:54:48 ls2931 kernel: [10228978.272277] BUG: soft lockup - CPU#104 stuck for 22s! [commitOptimize:70444]
On research, i found an entry in the release note of SLES11 SP2 mentioning that this can be possible if Huge page support is enabled as it is default with this SP.
There it is stated that the THP may even have a negative impact on performance when the system is under heavy load, many CPUs and much memory.
Has anyone already focused on this or has undertaken tests ?
Best regards
Andreas