prevent get_backend from overflowing the stack - #602
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vchuravy merged 4 commits intoJun 10, 2025
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This is how it looks now: julia> using KernelAbstractions
Precompiling KernelAbstractions...
37 dependencies successfully precompiled in 60 seconds. 29 already precompiled.
julia> struct UnknownAbstractVector <: AbstractVector{Float32} end
julia> get_backend(UnknownAbstractVector())
ERROR: ArgumentError: throwing to prevent a stack overflow, possibly a `get_backend` method is missing?
Stacktrace:
[1] (::KernelAbstractions.var"#t#1")()
@ KernelAbstractions ~/tmp/jl/KernelAbstractions.jl/src/KernelAbstractions.jl:514
[2] get_backend_recur(f::typeof(parent), x::UnknownAbstractVector)
@ KernelAbstractions ~/tmp/jl/KernelAbstractions.jl/src/KernelAbstractions.jl:517
[3] get_backend(A::UnknownAbstractVector)
@ KernelAbstractions ~/tmp/jl/KernelAbstractions.jl/src/KernelAbstractions.jl:523
[4] top-level scope
@ REPL[4]:1 |
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Thanks!
I will backport this to the 0.9 branch
Prevent the `get_backend` methods from overflowing the stack/recurring without bound. Hoping this doesn't cause inference issues due to deeper call stacks. Fixes #588
Co-authored-by: Valentin Churavy <v.churavy@gmail.com>
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Co-authored-by: Valentin Churavy <v.churavy@gmail.com> (cherry picked from commit 474050e)
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Co-authored-by: Valentin Churavy <v.churavy@gmail.com> (cherry picked from commit 474050e)
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Prevent the
get_backendmethods from overflowing the stack/recurring without bound.Hoping this doesn't cause inference issues due to deeper call stacks.
Fixes #588