Intel Xe Driver For Linux 7.4 Adds vRAM Health Check, Degraded Memory Handling
Intel has submitted new changes to the Xe kernel graphics driver for the upcoming Linux 7.4 cycle, focusing on video memory health and degradation handling. The updates include a basic vRAM health check routine that uses the last memory page as a canary to detect sizing and alignment issues. Additionally, the driver now supports memory page offlining to permanently isolate faulty video memory and exposes per-engine idle status via DebugFS.
- ▪The new vRAM health check is currently gated behind the CONFIG_DRM_XE_DEBUG_MEM kernel build flag to prevent triggering in production environments.
- ▪Memory page offlining support allows the driver to permanently carve out faulty video memory so it is not reused by subsequent allocations.
- ▪The health check specifically addresses issues with CCS sizing on some BMG cards where misaligned offsets were causing storage to be incorrectly allocated as normal VRAM.
- ▪Faulty video memory pages are exposed via DebugFS to allow user-space applications to be aware of degraded memory areas.
- ▪These changes were submitted to the DRM-Next repository for inclusion in the Linux 7.4 kernel cycle.
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/Intel-Xe-vRAM-Health-Check |
| Publication time | Sat, 19 Sep 2026 06:24:15 -0400 |
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Intel Xe Driver For Linux 7.4 Adds vRAM Health Check, Degraded Memory Handling Written by Michael Larabel in Intel on 19 September 2026 at 06:24 AM EDT. Add A Comment Sent out this week were more Intel Xe kernel graphics driver changes targeting the upcoming Linux 7.4 kernel cycle. The theme this week was around dealing with video memory health and also being able to better deal with hardware degraded video RAM. The Intel Xe driver is rolling out a basic vRAM health check routine focused on sanity testing the last vRAM page. Intel engineer Matthew Auld explained of this vRAM health check for the Xe driver with this patch: "During early probe, use the last page as a canary for BAR sizing, CCS sizing, identity map setup etc.
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