linux-kernel - Re: request_irq() with local bh disabled

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Message-ID: <20250307135959.GL16878@noisy.programming.kicks-ass.net>
Date: Fri, 7 Mar 2025 14:59:59 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Borislav Petkov <bp@...en8.de>
Cc: Ryo Takakura <ryotkkr98@...il.com>, boqun.feng@...il.com,
	davem@...emloft.net, edumazet@...gle.com, horms@...nel.org,
	kuba@...nel.org, kuniyu@...zon.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, pabeni@...hat.com, x86@...nel.org
Subject: Re: request_irq() with local bh disabled

On Fri, Mar 07, 2025 at 02:13:19PM +0100, Borislav Petkov wrote:
> On Fri, Mar 07, 2025 at 09:58:51PM +0900, Ryo Takakura wrote:
> > I'm so sorry that the commit caused this problem...
> > Please let me know if there is anything that I should do.
> 
> It is gone from the tip tree so you can take your time and try to do it right.
> 
> Peter and/or I could help you reproduce the issue and try to figure out what
> needs to change there.

.config attached; I used gcc-14.2.0-8 (debian).

Simply booting it should reproduce; it goes boom when trying to
initialize INET6.


View attachment "config-lockdep-oopsie" of type "text/plain" (173861 bytes)