1817816 - Crash in [@ check_begin_texture_render]

Status: NEW

(Core :: Graphics: WebRender, defect, P2)

Description

[Gabriele Svelto [:gsvelto] (PTO)]

Crash report: https://crash-stats.mozilla.org/report/index/225ba075-7998-4a28-b6d7-25f950230219

Reason: SIGSEGV / SEGV_MAPERR

Top 10 frames of crashing thread:

0  libgallium_dri.so  check_begin_texture_render  src/mesa/main/fbobject.c:3191
0  libgallium_dri.so  _mesa_bind_framebuffers  src/mesa/main/fbobject.c:3331
1  libxul.so  webrender::device::gl::Device::reset_state  gfx/wr/webrender/src/device/gl.rs:2041
1  libxul.so  webrender::device::gl::Device::begin_frame  gfx/wr/webrender/src/device/gl.rs:2157
2  libxul.so  webrender::renderer::Renderer::render_impl  gfx/wr/webrender/src/renderer/mod.rs:1422
3  libxul.so  webrender::renderer::Renderer::render  gfx/wr/webrender/src/renderer/mod.rs:1192
4  libxul.so  wr_renderer_render  gfx/webrender_bindings/src/bindings.rs:614
5  libxul.so  mozilla::wr::RendererOGL::UpdateAndRender  gfx/webrender_bindings/RendererOGL.cpp:186
5  libxul.so  mozilla::wr::RenderThread::UpdateAndRender  gfx/webrender_bindings/RenderThread.cpp:578
6  libxul.so  mozilla::wr::RenderThread::HandleFrameOneDocInner  gfx/webrender_bindings/RenderThread.cpp:437

I've dug into a few crashes and what seems to be happening is that self.bound_draw_fbo.0 is NULL here. We crash inside Mesa at the first line where we touch that pointer which is typically here after being called from here.

Comment 1

[Bob Hood [:bhood]]

Glenn, please adjust the Severity if you disagree.

Comment 2

[Jeff Muizelaar [:jrmuizel]]

I don't think this has enough volume to be S2