[dpdk-dev] [PATCH] test: make hugepage check more robust under Linux
David Marchand
david.marchand at redhat.com
Fri Mar 19 14:41:12 CET 2021
On Wed, Mar 17, 2021 at 3:44 PM Aaron Conole <aconole at redhat.com> wrote:
> diff --git a/app/test/has-hugepage.sh b/app/test/has-hugepage.sh
> index d600fad319..1c3cfb665a 100755
> --- a/app/test/has-hugepage.sh
> +++ b/app/test/has-hugepage.sh
> @@ -3,7 +3,17 @@
> # Copyright 2020 Mellanox Technologies, Ltd
>
> if [ "$(uname)" = "Linux" ] ; then
> - cat /proc/sys/vm/nr_hugepages || echo 0
> + nr_hugepages=$(cat /proc/sys/vm/nr_hugepages)
> + # Need to check if we have permissions to access hugepages
> + perm=""
> + for mount in `mount | grep hugetlbfs | awk '{ print $3; }'`; do
> + test ! -w $mount/. || perm="$mount"
> + done
> + if [ "$perm" = "" -o "$nr_hugepages" = "0" ]; then
> + echo 0
> + else
> + echo $nr_hugepages
> + fi
> elif [ "$(uname)" = "FreeBSD" ] ; then
> echo 1 # assume FreeBSD always has hugepages
> else
The check is evaluated first when configuring as normal user and not
reevaluated when running the tests as root in Travis/GHA, so the tests
are started with no hugepage.
Then, in Travis and GHA, we can see (sigbus o_O) crashes in no-huge mode.
I tried to reproduce but did not manage.
--
David Marchand
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