** Information type changed from Private to Public ** Description changed:
[Description] - Compute applications probing GPU memory size fail in fault mode because the system permits virtual memory overcommit, which is further complicated by cgroups restrictions. - - A new virtual machine (VM) creation flag (DRM_XE_VM_CREATE_NO_VM_OVERCOMMIT) is introduced to prevent memory overcommit failures for GPU applications running in fault mode. - The new flag mimics non-fault mode behavior by blocking the eviction of same-VM buffer objects (BOs) during initial VM_BIND processing. + Compute applications probing GPU memory size fail in fault mode because the system permits virtual memory overcommit, which is further complicated by cgroups restrictions. + + A new virtual machine (VM) creation flag (DRM_XE_VM_CREATE_NO_VM_OVERCOMMIT) is introduced to prevent memory overcommit failures for GPU applications running in fault mode. + The new flag mimics non-fault mode behavior by blocking the eviction of same-VM buffer objects (BOs) during initial VM_BIND processing. [Hardware Information] - Architecture: - Intel / AMD (x86_64) - Platform(s): - Lunar Lake - Wildcat Lake - Panther Lake - Nova Lake - Battlemage - Date HW is expected at Canonical: - - Component(s): - Graphics + Architecture: + Intel / AMD (x86_64) + Platform(s): + Lunar Lake + Wildcat Lake + Panther Lake + Nova Lake + Battlemage + Date HW is expected at Canonical: + + Component(s): + Graphics [Software Information] - Target Version: - 26.04 - Target Kernel: - 7.1 - Commit IDs: - 369cc88049855269b7620426bda4fb9ce2a2d1ca drm/xe/uapi: Introduce a flag to disallow vm overcommit in fault mode - External Links: - + Target Version: + 26.04 + Target Kernel: + Landed in 7.1, requesting backport to 7.0 + Commit IDs: + 369cc88049855269b7620426bda4fb9ce2a2d1ca drm/xe/uapi: Introduce a flag to disallow vm overcommit in fault mode + External Links: [Business Justification] - [Testing guidance] - [External ID] - GSD-13281 + GSD-13281 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2165799 Title: [LNL][WCL][PTL][NVL][BMG] Fix GPU memory overcommit that leads to crash To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/2165799/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
