linux-kernel - Re: [PATCH v2 net-next 6/6] selftests: forwarding: add dynamic FDB test

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Message-ID: <20230330192714.oqosvifrftirshej@skbuf>
Date:   Thu, 30 Mar 2023 22:27:14 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Hans Schultz <netdev@...io-technology.com>
Cc:     Ido Schimmel <idosch@...dia.com>, davem@...emloft.net,
        kuba@...nel.org, netdev@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Woojung Huh <woojung.huh@...rochip.com>,
        "maintainer:MICROCHIP KSZ SERIES ETHERNET SWITCH DRIVER" 
        <UNGLinuxDriver@...rochip.com>, Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Clément Léger <clement.leger@...tlin.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Ivan Vecera <ivecera@...hat.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        Shuah Khan <shuah@...nel.org>,
        Christian Marangi <ansuelsmth@...il.com>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        "open list:RENESAS RZ/N1 A5PSW SWITCH DRIVER" 
        <linux-renesas-soc@...r.kernel.org>,
        "moderated list:ETHERNET BRIDGE" <bridge@...ts.linux-foundation.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH v2 net-next 6/6] selftests: forwarding: add dynamic FDB
 test

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@...ard: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.