linux-kernel - Re: [PATCH net] iavf: fix deadlock in reset handling

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Message-ID: <20260202155813.3f8fbc27@kernel.org>
Date: Mon, 2 Feb 2026 15:58:13 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Petr Oros <poros@...hat.com>
Cc: netdev@...r.kernel.org, ivecera@...hat.com, mschmidt@...hat.com, Tony
 Nguyen <anthony.l.nguyen@...el.com>, Przemek Kitszel
 <przemyslaw.kitszel@...el.com>, Andrew Lunn <andrew+netdev@...n.ch>, "David
 S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo
 Abeni <pabeni@...hat.com>, Stanislav Fomichev <sdf@...ichev.me>,
 intel-wired-lan@...ts.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] iavf: fix deadlock in reset handling

On Mon,  2 Feb 2026 09:48:20 +0100 Petr Oros wrote:
> +	netdev_unlock(netdev);
> +	ret = wait_event_interruptible_timeout(adapter->reset_waitqueue,
> +					       !iavf_is_reset_in_progress(adapter),
> +					       msecs_to_jiffies(5000));
> +	netdev_lock(netdev);

Dropping locks taken by the core around the driver callback
is obviously unacceptable. SMH.