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Profiler segmentation fault #28648

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@sverek

Description

@sverek

When running the profiler in Julia 1.0.0, the REPL crashes when running Profile.print()

Also tried with Juno profiler. Crashes REPL while profiling.

Julia 1.0.0 prebuilt binaries.
macOS 10.13.6

Example:

               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.0.0 (2018-08-08)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

julia> using Profile

julia> include("qpfem.jl")
gendL (generic function with 1 method)

julia> runexperiment4()
prec=256 p=2 n=2 errK=6.908935E-77 errM=8.636169E-78
prec=256 p=3 n=2 errK=5.527148E-76 errM=2.159042E-77
prec=256 p=4 n=2 errK=2.210859E-75 errM=8.636169E-78
prec=256 p=5 n=2 errK=7.738007E-75 errM=8.636169E-78
prec=256 p=6 n=2 errK=1.768687E-74 errM=4.318084E-77

julia> @profile runexperiment4()
prec=256 p=2 n=2 errK=6.908935E-77 errM=8.636169E-78
prec=256 p=3 n=2 errK=5.527148E-76 errM=2.159042E-77
prec=256 p=4 n=2 errK=2.210859E-75 errM=8.636169E-78
prec=256 p=5 n=2 errK=7.738007E-75 errM=8.636169E-78
prec=256 p=6 n=2 errK=1.768687E-74 errM=4.318084E-77

julia> Profile.print()
Segmentation fault: 11

https://gist.github.com/sverek/107e64a21eed660b273d0fd2f5d366e3

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