--- title: "esx.problem.cpu.intel.ioapic.listing.error" description: "Not all IO-APICs are listed in the DMAR. Not enabling interrupt remapping on this platform. The listing for IO-APICs on the platform is invalid. You may need to contact your hardware vendor for resolution." canonical: "https://helpcenter.veeam.com/docs/mp/kb/esx.problem.cpu.intel.ioapic.listing.error.html" breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Host Hardware Error > esx.problem.cpu.intel.ioapic.listing.error" dateModified: "2026-09-10" --- # esx.problem.cpu.intel.ioapic.listing.error ## Summary Not all IO-APICs are listed in the DMAR. Not enabling interrupt remapping on this platform. ## Causes The listing for IO-APICs on the platform is invalid. ## Resolutions You may need to contact your hardware vendor for resolution. ## External Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/) for more information.