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From: Aaron Conole <aconole@redhat.com>
To: David Marchand <david.marchand@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 10:34:02 -0400
Message-ID: <f7t5z1n6wmd.fsf@dhcp-25.97.bos.redhat.com> (raw)
In-Reply-To: <CAJFAV8xKado7NukQJZDpZkzWthv4AS2-+=qTBb1z7FBKz2v8BQ@mail.gmail.com> (David Marchand's message of "Fri, 19 Mar 2021 14:41:12 +0100")

David Marchand <david.marchand@redhat.com> writes:

> 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.

I noticed that as well.  I am equally as confused, but I'm working on
it (along with folding in Thomas' suggestions).


      reply	other threads:[~2021-03-19 14:34 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
2021-03-19 14:34   ` Aaron Conole [this message]

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