1774075 - Crash at EGL_MESA_image_dma_buf_export

Status: RESOLVED FIXED

(Core :: Graphics: Layers, defect)

Description

[Martin Stránský [:stransky] (ni? me)]

EGL_MESA_image_dma_buf_export is not multi-thread safe on radeon and crashes when multiple objects are accessed from different threads.

I can reproduce that on radeon only, Intel and NVIDIA seems to be safe.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1735929

Comment 2

[Martin Stránský [:stransky] (ni? me)]

Reported as https://gitlab.freedesktop.org/mesa/mesa/-/issues/6666

Comment 3

[Martin Stránský [:stransky] (ni? me)]

Attachment: Bug 1774075 [Linux] Don't use EGL_MESA_image_dma_buf_export on mesa/radeonsi driver r?jgilbert

Don't use EGL_MESA_image_dma_buf_export on Mesa/radeonsi driver due to multi-thread crash there (https://gitlab.freedesktop.org/mesa/mesa/-/issues/6666)

Comment 4

[Robert Mader [:rmader]]

On the mesa side this is fixed from 22.1.2 on.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/f1c03c3b716c
[Linux] Don't use EGL_MESA_image_dma_buf_export on mesa/radeonsi driver r=jgilbert

Comment 6

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/f1c03c3b716c

Comment 7

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1735929

Comment 8

[Robert Mader [:rmader]]

@Martin: FYI this extension just came up in an unrelated discussion (about Gstreamer) with Daniel Stone. Short quote:

oh my god
eglExportDMABUFImageMESA noooooooooooo
yeah, that's ... quite broken
sometimes it works, mostly by accident

Unfortunately there doesn't appear to be a good alternative to using GBM here - the closest thing being https://gitlab.freedesktop.org/allocator/allocator, but it didn't get traction.