Illegal memory access during complex exponential with large imaginary part as exponent #1085
Description
I have a CuArray of complex numbers with large imaginary parts (geater than 1e7). If I take the element-wise complex exponential of this CuArray, I get an illegal memory access error.
Here is an example:
julia> VERSION
v"1.6.2-pre.0"
(@v1.6) pkg> st CUDA
Status `~/.julia/environments/v1.6/Project.toml`
[052768ef] CUDA v3.3.4
julia> using CUDA
julia> dev = device()
CuDevice(0): Tesla V100-PCIE-32GB
julia> capability(dev)
v"7.0.0"
julia> v = CuVector{ComplexF64}(undef, 1); # length-1 vector
julia> v .= 1e6im
1-element CuArray{ComplexF64, 1}:
0.0 + 1.0e6im
julia> exp.(v) # works fine
1-element CuArray{ComplexF64, 1}:
0.9367521275331447 - 0.34999350217129294im
julia> v .= 1e7im
1-element CuArray{ComplexF64, 1}:
0.0 + 1.0e7im
julia> exp.(v);
ERROR: CUDA error: an illegal memory access was encountered (code 700, ERROR_ILLEGAL_ADDRESS)WARNING: Error while freeing CuPtr{Nothing}(0x0000000402000400):
CUDA.CuError(code=CUDA.cudaError_enum(0x000002bc), meta=nothing)
The error doesn't seem device-specific. I tested the same example on an older GPU with device capability of v3.7.0, and got the same error.
Here is the stack trace of the above example:
Stacktrace:
[1] throw_api_error(res::CUDA.cudaError_enum)
@ CUDA ~/.julia/packages/CUDA/lwSps/lib/cudadrv/error.jl:105
[2] macro expansion
@ ~/.julia/packages/CUDA/lwSps/lib/cudadrv/error.jl:115 [inlined]
[3] cuMemFreeAsync(dptr::CUDA.Mem.DeviceBuffer, hStream::CuStream)
@ CUDA ~/.julia/packages/CUDA/lwSps/lib/utils/call.jl:26
[4] #free#6
@ ~/.julia/packages/CUDA/lwSps/lib/cudadrv/memory.jl:103 [inlined]
[5] macro expansion
@ ~/.julia/packages/CUDA/lwSps/src/pool.jl:147 [inlined]
[6] macro expansion
@ ./timing.jl:287 [inlined]
[7] actual_free(block::CUDA.PoolUtils.Block; stream_ordered::Bool, stream::CuStream)
@ CUDA ~/.julia/packages/CUDA/lwSps/src/pool.jl:146
[8] #free#158
@ ~/.julia/packages/CUDA/lwSps/src/pool/none.jl:27 [inlined]
[9] macro expansion
@ ~/.julia/packages/CUDA/lwSps/src/pool.jl:361 [inlined]
[10] macro expansion
@ ./timing.jl:287 [inlined]
[11] #free#177
@ ~/.julia/packages/CUDA/lwSps/src/pool.jl:360 [inlined]
[12] macro expansion
@ ~/.julia/packages/CUDA/lwSps/src/array.jl:62 [inlined]
[13] macro expansion
@ ~/.julia/packages/CUDA/lwSps/src/state.jl:175 [inlined]
[14] unsafe_free!(xs::CuArray{ComplexF64, 1}, stream::CuStream)
@ CUDA ~/.julia/packages/CUDA/lwSps/src/array.jl:61
[15] unsafe_finalize!(xs::CuArray{ComplexF64, 1})
@ CUDA ~/.julia/packages/CUDA/lwSps/src/array.jl:82
[16] #invokelatest#2
@ ./essentials.jl:708 [inlined]
[17] invokelatest
@ ./essentials.jl:706 [inlined]
[18] show_backtrace(io::IOContext{Base.TTY}, t::Vector{Base.StackTraces.StackFrame})
@ Base ./errorshow.jl:776
[19] showerror(io::IOContext{Base.TTY}, ex::CuError, bt::Vector{Base.StackTraces.StackFrame}; backtrace::Bool)
@ Base ./errorshow.jl:90
[20] show_exception_stack(io::IOContext{Base.TTY}, stack::Vector{Any})
@ Base ./errorshow.jl:877
[21] display_error(io::IOContext{Base.TTY}, stack::Vector{Any})
@ Base ./client.jl:104
[22] #invokelatest#2
@ ./essentials.jl:708 [inlined]
[23] invokelatest
@ ./essentials.jl:706 [inlined]
[24] print_response(errio::IO, response::Any, show_value::Bool, have_color::Bool, specialdisplay::Union{Nothing, AbstractDisplay})
@ REPL ~/pkg/julia/julia-1.6/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:242
[25] (::REPL.var"#40#41"{REPL.LineEditREPL, Pair{Any, Bool}, Bool, Bool})(io::Any)
@ REPL ~/pkg/julia/julia-1.6/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:231
[26] with_repl_linfo(f::Any, repl::REPL.LineEditREPL)
@ REPL ~/pkg/julia/julia-1.6/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:462
[27] print_response(repl::REPL.AbstractREPL, response::Any, show_value::Bool, have_color::Bool)
@ REPL ~/pkg/julia/julia-1.6/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:229
[28] (::REPL.var"#do_respond#61"{Bool, Bool, REPL.var"#72#82"{REPL.LineEditREPL, REPL.REPLHistoryProvider}, REPL.LineEditREPL, REPL.LineEdit.Prompt})(s::REPL.LineEdit.MIState, buf::Any, ok::Bool)
@ REPL ~/pkg/julia/julia-1.6/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:798
[29] #invokelatest#2
@ ./essentials.jl:708 [inlined]
[30] invokelatest
@ ./essentials.jl:706 [inlined]
[31] run_interface(terminal::REPL.Terminals.TextTerminal, m::REPL.LineEdit.ModalInterface, s::REPL.LineEdit.MIState)
@ REPL.LineEdit ~/pkg/julia/julia-1.6/usr/share/julia/stdlib/v1.6/REPL/src/LineEdit.jl:2441
[32] run_frontend(repl::REPL.LineEditREPL, backend::REPL.REPLBackendRef)
@ REPL ~/pkg/julia/julia-1.6/usr/share/julia/stdlib/v1.6/REPL/src/REPL.jl:1126
[33] (::REPL.var"#44#49"{REPL.LineEditREPL, REPL.REPLBackendRef})()
@ REPL ./task.jl:411
WARNING: Error while freeing CuPtr{Nothing}(0x0000000402000200):
CUDA.CuError(code=CUDA.cudaError_enum(0x000002bc), meta=nothing)