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From: David Marchand <david.marchand@redhat.com>
To: Aaron Conole <aconole@redhat.com>
Cc: dev <dev@dpdk.org>, Thomas Monjalon <thomas@monjalon.net>,
	 "Burakov, Anatoly" <anatoly.burakov@intel.com>,
	Bruce Richardson <bruce.richardson@intel.com>
Subject: Re: [dpdk-dev] [PATCH] test: make hugepage check more robust under Linux
Date: Fri, 19 Mar 2021 14:41:12 +0100
Message-ID: <CAJFAV8xKado7NukQJZDpZkzWthv4AS2-+=qTBb1z7FBKz2v8BQ@mail.gmail.com> (raw)
In-Reply-To: <20210317144409.288346-1-aconole@redhat.com>

On Wed, Mar 17, 2021 at 3:44 PM Aaron Conole <aconole@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


  parent reply	other threads:[~2021-03-19 13:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-17 14:44 Aaron Conole
2021-03-17 14:57 ` Thomas Monjalon
2021-04-06 12:33   ` Aaron Conole
2021-04-06 12:58     ` Bruce Richardson
2021-04-06 14:20       ` Aaron Conole
2021-04-06 14:50         ` Bruce Richardson
2021-04-09 15:06           ` Aaron Conole
2021-04-09 15:33             ` Thomas Monjalon
2021-04-12 11:33               ` David Marchand
2021-04-09 15:40             ` Bruce Richardson
2021-03-19 13:41 ` David Marchand [this message]
2021-03-19 14:34   ` Aaron Conole

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