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Segmentation fault when calling copy #19

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baggepinnen opened this issue Sep 22, 2018 · 1 comment

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baggepinnen commented Sep 22, 2018

using Zygote, LinearAlgebra
x        = randn(3)             # Input
v        = randn(3)             # Vector
H        = randn(3,3); H = H+H' # Hessian
f(x)     = 0.5*(copy(x')*(H*x))
f'(x) # Segmentation fault

using Zygote, LinearAlgebra
x        = randn(3)             # Input
v        = randn(3)             # Vector
H        = randn(3,3); H = H+H' # Hessian
f(x)     = 0.5*(x'*(H*x))
f'(x) #  No segmentation fault

MikeInnes closed this as completed in

0793af3

Member

MikeInnes commented Oct 10, 2018

I didn't see the segfault on a simpler example, but hopefully that fixes your example anyway.

Stamp1993 mentioned this issue

EXCEPTION_ACCESS_VIOLATION on Modia model differentiation #330

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