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numa001 and T3429 fail in debug_numa way

On ARMv7 (and presumably elsewhere) the numa001 and T3429 tests fail in the debug_numa way:

cd "concurrent/should_run/T3429.run" && ./T3429 +RTS -N2 --debug-numa=2 -RTS +RTS -C0.001 -RTS< 
Wrong exit code for T3429(debug_numa)(expected 0 , actual 134 )
Stderr ( T3429 ):
get_mempolicy: Operation not permitted
T3429: internal error: available NUMA node set is empty
    (GHC version 8.9.0.20191022 for aarch64_unknown_linux)
    Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug
Aborted (core dumped)
*** unexpected failure for T3429(debug_numa)
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