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From: Hangbin Liu <hangbin.liu@linux.dev>
To: Bjoern Doebel <doebel@amazon.de>
Cc: Jay Vosburgh <jv@jvosburgh.net>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@kernel.org>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Shuah Khan <shuah@kernel.org>, Hangbin Liu <liuhangbin@gmail.com>,
	Liang Li <liali@redhat.com>,
	netdev@vger.kernel.org, linux-kselftest@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] selftests: bonding: feed link monitor to deflake prio_test
Date: Wed, 11 Nov 2026 08:36:24 +0800	[thread overview]
Message-ID: <avO4iNKpHoXMV9gp@fedora> (raw)
In-Reply-To: <20261110115354.2250237-1-doebel@amazon.de>

On Tue, Nov 10, 2026 at 11:53:52AM +0000, Bjoern Doebel wrote:
> Hi Hangbin,
> 
> On Thu, Nov 05, 2026 at 10:19:08AM +0800, Hangbin Liu wrote:
> > If the kill fails for some reason, will we wait here forever and hang the
> > entire test?
> 
> No. bash keeps a terminated child's exit status until it is reaped, so if
> the ping already exited the kill fails but the wait returns immediately.
> Only a genuinely unkillable ping would block, independent of kill. The
> idiomatic form is kill_process() from net/lib.sh, which short-circuits
> the wait when the kill fails.

Yes, that's what I mean. We need to avoid that the kill failed and the
process still running.

Thanks
Hangbin

  reply	other threads:[~2026-11-11  0:36 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-04 14:20 Bjoern Doebel
2026-11-05  2:19 ` Hangbin Liu
2026-11-10 11:53   ` Bjoern Doebel
2026-11-11  0:36     ` Hangbin Liu [this message]
2026-11-08 15:12 ` netdev-bot+sashiko

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