netdev - Re: [PATCH net] selftests: net: packetdrill: xfail all problems on slow machines

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Message-ID: <688d2af39aff_2e1a6829416@willemb.c.googlers.com.notmuch>
Date: Fri, 01 Aug 2025 17:00:35 -0400
From: Willem de Bruijn <willemdebruijn.kernel@...il.com>
To: Jakub Kicinski <kuba@...nel.org>, 
 davem@...emloft.net
Cc: netdev@...r.kernel.org, 
 edumazet@...gle.com, 
 pabeni@...hat.com, 
 andrew+netdev@...n.ch, 
 horms@...nel.org, 
 Jakub Kicinski <kuba@...nel.org>, 
 shuah@...nel.org, 
 willemb@...gle.com, 
 matttbe@...nel.org, 
 linux-kselftest@...r.kernel.org
Subject: Re: [PATCH net] selftests: net: packetdrill: xfail all problems on
 slow machines

Jakub Kicinski wrote:
> We keep seeing flakes on packetdrill on debug kernels, while
> non-debug kernels are stable, not a single flake in 200 runs.
> Time to give up, debug kernels appear to suffer from 10msec
> latency spikes and any timing-sensitive test is bound to flake.
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

Reviewed-by: Willem de Bruijn <willemb@...gle.com>