linux-kernel - Re: [PATCH] Revert "igb: Disable threaded IRQ for igb_msix

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Message-ID: <20241105175413.55ea58f2@kernel.org>
Date: Tue, 5 Nov 2024 17:54:13 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Wander Lairson Costa <wander@...hat.com>
Cc: 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>, Sebastian Andrzej Siewior
 <bigeasy@...utronix.de>, Clark Williams <clrkwllms@...nel.org>, Steven
 Rostedt <rostedt@...dmis.org>, intel-wired-lan@...ts.osuosl.org (moderated
 list:INTEL ETHERNET DRIVERS), netdev@...r.kernel.org (open list:NETWORKING
 DRIVERS), linux-kernel@...r.kernel.org (open list),
 linux-rt-devel@...ts.linux.dev (open list:Real-time Linux
 (PREEMPT_RT):Keyword:PREEMPT_RT), tglx@...utronix.de
Subject: Re: [PATCH] Revert "igb: Disable threaded IRQ for igb_msix_other"

On Mon,  4 Nov 2024 09:40:50 -0300 Wander Lairson Costa wrote:
> This reverts commit 338c4d3902feb5be49bfda530a72c7ab860e2c9f.
> 
> Sebastian noticed the ISR indirectly acquires spin_locks, which are
> sleeping locks under PREEMPT_RT, which leads to kernel splats.
> 
> Signed-off-by: Wander Lairson Costa <wander@...hat.com>
> Reported-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

Please resend with the reverted commit added as a Fixes tag.
Also - your sign off should be the last tag.
-- 
pw-bot: au