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Valgrind suppression writev(vector[...]) does not suppress for recent valgrind #13120

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khanc opened this issue Mar 3, 2025 · 0 comments
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@khanc
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khanc commented Mar 3, 2025

The valgrind suppression

{
  tcp_send
  Memcheck:Param
  writev(vector[...])
  fun:writev
  fun:mca_btl_tcp_frag_send
  fun:mca_btl_tcp_endpoint_send
}

in share/openmpi/openmpi-valgrind.supp (openmpi 5.0.7) does not work for valgrind 3.23. The three dots syntax no longer matches writev(vector[1]) which is the actual reported error. I am not sure if this is a valgrind regression, or openmpi needs to update the suppression file.

edit: It is an intentional change in valgrind.

@khanc khanc changed the title Valgrind suppression writev([...]) does not suppress for recent valgrind Valgrind suppression writev(vector[...]) does not suppress for recent valgrind Mar 3, 2025
@jsquyres jsquyres added this to the v5.0.8 milestone Mar 13, 2025
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