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From: Jakub Kicinski <kuba@kernel.org>
To: Hangbin Liu <liuhangbin@gmail.com>
Cc: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
	Shuah Khan <shuah@kernel.org>,
	linux-kselftest@vger.kernel.org
Subject: Re: [PATCH net] selftests: rtnetlink: fix addrlft test flakiness on power-saving systems
Date: Mon, 18 Aug 2025 18:30:12 -0700	[thread overview]
Message-ID: <20250818183012.35f47956@kernel.org> (raw)
In-Reply-To: <20250715043459.110523-1-liuhangbin@gmail.com>

On Tue, 15 Jul 2025 04:34:59 +0000 Hangbin Liu wrote:
> Jakub reported that the rtnetlink test for the preferred lifetime of an
> address has become quite flaky. The issue started appearing around the 6.16
> merge window in May, and the test fails with:
> 
>     FAIL: preferred_lft addresses remaining
> 
> The flakiness might be related to power-saving behavior, as address
> expiration is handled by a "power-efficient" workqueue.
> 
> To address this, use slowwait to check more frequently whether the address
> still exists. This reduces the likelihood of the system entering a low-power
> state during the test, improving reliability.

It flaked again, after long time of being fine..

https://netdev-3.bots.linux.dev/vmksft-net/results/259361/15-rtnetlink-sh/stdout

  parent reply	other threads:[~2025-08-19  1:30 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-15  4:34 [PATCH net] selftests: rtnetlink: fix addrlft test flakiness on power-saving systems Hangbin Liu
2025-07-16 22:10 ` patchwork-bot+netdevbpf
2025-08-19  1:30 ` Jakub Kicinski [this message]
2025-08-19  1:50   ` Hangbin Liu
2025-08-19  2:08     ` Jakub Kicinski

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