Segfault in libamdhip

Open

#216 opened on Mar 28, 2022 6 comments 0 reactions 0 assignees View on GitHub

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bug hip

Dominant language: Julia
Stars: 344
Forks: 79
Avg merge: 2d 23h
Merged PRs (30d): 27

Description

julia> a_d = ROCArray(a)
32-element ROCVector{Float64}:
free(): invalid pointer

signal (6): Aborted
in expression starting at none:0
gsignal at /usr/lib/libc.so.6 (unknown line)
abort at /usr/lib/libc.so.6 (unknown line)
__libc_message at /usr/lib/libc.so.6 (unknown line)
malloc_printerr at /usr/lib/libc.so.6 (unknown line)
_int_free at /usr/lib/libc.so.6 (unknown line)
cfree at /usr/lib/libc.so.6 (unknown line)
unknown function (ip: 0x7fb9316ce317)
unknown function (ip: 0x7fb9316cf7e7)
unknown function (ip: 0x7fb93167e30e)
unknown function (ip: 0x7fb93169426d)
unknown function (ip: 0x7fb93157c834)
__pthread_once_slow at /usr/lib/libpthread.so.0 (unknown line)
hipStreamSynchronize at /home/deck/.julia/artifacts/b5a35fe56035e3d95e3203689c38aafec324a861/hip/lib/libamdhip64.so (unknown line)
macro expansion at /home/deck/.julia/packages/AMDGPU/PtNLZ/src/hip/error.jl:149 [inlined]
hipStreamSynchronize at /home/deck/.julia/packages/AMDGPU/PtNLZ/src/hip/libhip.jl:2
wait! at /home/deck/.julia/packages/AMDGPU/PtNLZ/src/sync.jl:20
wait! at /home/deck/.julia/packages/AMDGPU/PtNLZ/src/array.jl:86 [inlined]
copyto! at /home/deck/.julia/packages/AMDGPU/PtNLZ/src/array.jl:182
copyto! at /home/deck/.julia/packages/GPUArrays/VNhDf/src/host/abstractarray.jl:95 [inlined]
copyto_axcheck! at ./abstractarray.jl:1104 [inlined]
Array at ./array.jl:563 [inlined]
Array at ./boot.jl:481 [inlined]
convert at ./array.jl:554 [inlined]
adapt_storage at /home/deck/.julia/packages/GPUArrays/VNhDf/src/host/abstractarray.jl:45 [inlined]
adapt_structure at /home/deck/.julia/packages/Adapt/wASZA/src/Adapt.jl:42 [inlined]
adapt at /home/deck/.julia/packages/Adapt/wASZA/src/Adapt.jl:40 [inlined]
print_array at /home/deck/.julia/packages/GPUArrays/VNhDf/src/host/abstractarray.jl:48 [inlined]
show at ./arrayshow.jl:396
unknown function (ip: 0x7fb9326da581)

julia> versioninfo()
Julia Version 1.7.2
Commit bf53498635 (2022-02-06 15:21 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: AMD Custom APU 0405
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, znver2)

Contributor guide

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First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

Research direction

Reproduce ROCArray(a) with Julia 1.7.2 and the reported ROCm environment, then trace the failure through src/array.jl, src/sync.jl, src/hip/error.jl, and src/hip/libhip.jl. Done means the conversion and subsequent hipStreamSynchronize complete without the reported invalid-pointer abort.

Written by the indexing model from the issue text.

Assessment

Tech stack: julia
Domain: backend
Issue type: Bug
Difficulty: 4/5
Estimated time: 3-5 days
Activity status: Stale
Clarity: Needs clarification
Newbie friendliness: 20/100