Open Bug 1700242 Opened 7 months ago Updated 7 months ago

Crash in [@ webrender::visibility::update_primitive_visibility]


(Core :: Graphics: WebRender, defect, P3)





(Reporter: mccr8, Unassigned)


(Blocks 1 open bug)


(Keywords: crash)

Crash Data

Crash report:

MOZ_CRASH Reason: index out of bounds: the len is 16 but the index is 4294967295

Top 10 frames of crashing thread:

0 xul.dll RustMozCrash mozglue/static/rust/wrappers.cpp:16
1 xul.dll mozglue_static::panic_hook mozglue/static/rust/
2 xul.dll core::ops::function::Fn::call<fn ../cb75ad5db02783e8b0222fee363c5f63f7e2cf5b/library/core/src/ops/
3 xul.dll std::panicking::rust_panic_with_hook ../cb75ad5db02783e8b0222fee363c5f63f7e2cf5b//library/std/src/
4 xul.dll std::panicking::begin_panic_handler::{{closure}} ../cb75ad5db02783e8b0222fee363c5f63f7e2cf5b//library/std/src/
5 xul.dll std::sys_common::backtrace::__rust_end_short_backtrace<closure-0, !> ../cb75ad5db02783e8b0222fee363c5f63f7e2cf5b//library/std/src/sys_common/
6 xul.dll std::panicking::begin_panic_handler ../cb75ad5db02783e8b0222fee363c5f63f7e2cf5b//library/std/src/
7 xul.dll core::panicking::panic_fmt ../cb75ad5db02783e8b0222fee363c5f63f7e2cf5b//library/core/src/
8 xul.dll core::panicking::panic_bounds_check ../cb75ad5db02783e8b0222fee363c5f63f7e2cf5b//library/core/src/
9 xul.dll webrender::visibility::update_primitive_visibility gfx/wr/webrender/src/

Looks like the index is -1? Not super high volume, but there are a couple of install times.

OS: Windows 7 → All
Hardware: x86 → All

There are two distinct signatures here, representing half of the distribution:

As reported, we see:

And an assertion called `Option::unwrap()` on a `None` value:

Severity: -- → S3
Flags: needinfo?(gwatson)
Priority: -- → P3

Do we have any URLs or possible repro steps for this?

Flags: needinfo?(gwatson)

Nothing stands out. about:newtab, about:blank, YouTube, Reddit, etc. Seems like it could happen anywhere based on that.

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