gpu_vaspace.c assertions and dmaAllocMapping_GM107 failures under high VRAM usage

Abierto
  • ¿Algo no está bien?
#1,453 0 comentarios 0 reacciones 0 asignados Ver en GitHub

Los mantenedores suelen responder en 1 día

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
4/5
Tiempo estimado
3-5 días
Aptitud para principiantes
35/100
Tipo de issue
Error
Claridad
Necesita aclaración
Estado de actividad
Activo
Stack tecnológico
c, linux
Área
operating-systems

Línea de trabajo

Start with gpu_vaspace.c and the dmaAllocMapping_GM107 call path implicated by the reported assertion. Reproduce the failure with Substance Painter at high VRAM usage using a 4K textureset while comparing 1K and 2K workloads, and inspect the attached NVIDIA bug report. Done means identifying and fixing the mapping failure, with a regression test or repeatable verification showing the 4K workload no longer produces the assertion.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

bug
NVIDIA Open GPU Kernel Modules Version

615.78.08

Please confirm this issue does not happen with the proprietary driver (of the same version). This issue tracker is only for bugs specific to the open kernel driver.
  • I confirm that this does not happen with the proprietary driver package.
Operating System and Version

CachyOS

Kernel Release

Linux ZOS 7.2.9-2-cachyos #1 SMP PREEMPT_DYNAMIC Fri, 09 Oct 2026 15:36:46 +0000 x86_64 GNU/Linux

Please confirm you are running a stable release kernel (e.g. not a -rc). We do not accept bug reports for unreleased kernels.
  • I am running on a stable kernel release.
Hardware: GPU

NVIDIA GeForce RTX 3060 Ti (UUID: GPU-9370f5e5-6960-c726-81de-17a10ead47b4)

Describe the bug

Under high GPU memory usage, I repeatedly encounter NVIDIA kernel errors involving GPU virtual-address-space mapping failures. GPU memory usage reached approximately 7871 MiB out of 8192 MiB when observed.

The errors include:

intermapRegisterDmaMapping: Failed to insert new mapping node

nvAssertFailedNoLog: Assertion failed: NV_OK == status @ gpu_vaspace.c

NV_ERR_INVALID_ARGUMENT

_gvaspaceMappingInsert

dmaAllocMapping_GM107: can't update VA space for mapping

The issue occurs during a workload involving 4K textures; the same workload does not trigger the problem with 1K or 2K textures.

I found other reports mentioning similar errors and suspect that high VRAM usage may expose a GPU virtual-address-space or DMA mapping problem.

To Reproduce

I have this on Substance Painter (both 2025 and 2026), I set my resolution to 4k for only one textureset, while using the path tool for stitching.

Bug Incidence

Always

nvidia-bug-report.log.gz

nvidia-bug-report.log.gz

More Info

No response

Lenguaje dominante
C
Estrellas
17.5k
Forks
1.9k
Sin PR fusionados en 30 d

Preparar el entorno

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

Más de NVIDIA/open-gpu-kernel-modules

Todos los issues de NVIDIA/open-gpu-kernel-modules

Issues similares

Más issues de C

Recibe los nuevos issues en tu correo

Un resumen breve de issues de GitHub para principiantes.