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From:   Hans Schultz <netdev@kapio-technology.com>
To:     Vladimir Oltean <olteanv@gmail.com>
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Subject: Re: [PATCH v2 net-next 6/6] selftests: forwarding: add dynamic FDB
 test
In-Reply-To: <20230330192714.oqosvifrftirshej@skbuf>
References: <20230318141010.513424-1-netdev@kapio-technology.com>
 <20230318141010.513424-7-netdev@kapio-technology.com>
 <ZBgdAo8mxwnl+pEE@shredder> <87a5zzh65p.fsf@kapio-technology.com>
 <ZCMYbRqd+qZaiHfu@shredder> <874jq22h2u.fsf@kapio-technology.com>
 <20230330192714.oqosvifrftirshej@skbuf>
Date:   Fri, 31 Mar 2023 10:06:34 +0200
Message-ID: <871ql5mjjp.fsf@kapio-technology.com>
MIME-Version: 1.0
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On Thu, Mar 30, 2023 at 22:27, Vladimir Oltean <olteanv@gmail.com> wrote:
> On Thu, Mar 30, 2023 at 09:07:53PM +0200, Hans Schultz wrote:
>> Not true, it reveals that I forgot to put it in the patch, that's all. As
>> I cannot run several of these tests because of memory constraints I link
>> the file to a copy in a rw area where I modify the list and just run one
>> of the subtests at a time. If I try to run the whole it always fails
>> after a couple of sub-tests with an error.
>> 
>> It seems to me that these scripts are quite memory consuming as they
>> accumulate memory consuption in relation to what is loaded along the
>> way. A major problem with my system.
>
> I'm sorry for perhaps asking something entirely obvious, but have you tried:
>
> kernel-dir $ rsync -avr tools/testing/selftests/ root@$board:selftests/
> board $ cd selftests/drivers/net/dsa/
> board $ ./bridge_locked_port.sh lan0 lan1 lan2 lan3
>
> ?
>
> This is how I always run them, and it worked fine with both Debian
> (where it's easy to add missing packages to the rootfs) or with a more
> embedded-oriented Buildroot.

The memory problems are of course on the embedded target. In that case I
think it would be a very good idea to do something to design the system
better, so that it frees memory between the subtests.

If all tests are always run on the bridge only, I think they don't make
much sense as these patchsets are directed towards switchcores.