Silent data corruption on Tyan mainboard using iommu with more than 4GB of memory

  • Document ID:3714287
  • Creation Date:20-Feb-2007
  • Modified Date:27-Apr-2012
    • Micro Focus Products:
      Open Enterprise Server
    • SUSE Products:
      SUSE Linux Enterprise Server

Environment

Novell SUSE Linux Enterprise Server 9 SP3
Novell Open Enterprise Server (Linux based)

Situation

Silent data corruption on Tyan 2891 mainboards using iommu with more than 4GB of memory.
This issue has been observed with Tyan 2891 mainboards on Sun Ultra 20  SunFire X2100 servers.
 

Resolution

Up to now using theiommu=softkernel parameter is the only workaround for the issue.

Status

Reported to Engineering