From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4024031E0E5; Thu, 11 Sep 2025 13:03:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757595807; cv=none; b=fACaLUVU4C05wR1CHZ4iKfshVLHMtUbaSiDIRTriXTs01HNJO9BH21fo/TrVSta4iWaabJgiXbghN9HHJdkll8VdsP6KO/0H8yccyONkjegZVKFBoRDqtJufQgyCejZSdHefFqT4t84GKMONVTaiNySqY4Wh3J6Eyw3tT/ZFKX0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757595807; c=relaxed/simple; bh=WL1vFbVsuMz5eYh457lOB/SNVOO5O+iPUetR8c8NMm8=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=WmFSc18euXgKjAYgSEf+OBJSDOgddMNOdMLcA/B7dK4q1jIQwzrMejeuB4cCjVriVzJHDz4tdoFykm76CXhgU4pPLDctOi91vq6I6L6godAggDGCVRp/azBcQVyh7id8K1VF3ph/t6LgMBJFBvPglq7+t1delkHhwjEOrUMVZks= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=FEnaqTfT; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=LFcKO+s/; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="FEnaqTfT"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="LFcKO+s/" From: John Ogness DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1757595804; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=WL1vFbVsuMz5eYh457lOB/SNVOO5O+iPUetR8c8NMm8=; b=FEnaqTfTF6gSO5qJX3fxyRlVL+yMNSM0hvWX5P4ZqY3EZzC8qB6teIjph65xEjFm6kWyYd UnTIkXzDH5SLDVtC2MODOGem7+iHM2JCl3ysMCKwrGKnrve92GZ/sVzXoOlIzd9iBQUHPJ 5V5SYA7wAymKvLVZSlMkYFOMcv5gEoybGrqYadCrUTmsvPoRjUmgM1ruT7Ovc/qTFSIR+p nyLD+oeTKnoRJLcMgu2BifWG1QfFclq5RzjQPNfHYwf/pphGyW8AZN13/abBLALTztuPG/ jacZyezOgH9xdg+JKIzzI7QfLsLBlwoI6loRHoAPrZlHB1TvTcmSyiIEAwdTdg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1757595804; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=WL1vFbVsuMz5eYh457lOB/SNVOO5O+iPUetR8c8NMm8=; b=LFcKO+s/a9YjEqEPBpL750yrPjFA2Ej0IAcediZLUcKNgEpQsRvHAbHGSkMC6hW4xpny+5 1xj95Y5OH2oSFQBA== To: Petr Mladek Cc: Breno Leitao , Mike Galbraith , Simon Horman , kuba@kernel.org, calvin@wbinvd.org, Pavel Begunkov , Johannes Berg , paulmck@kernel.org, LKML , netdev@vger.kernel.org, boqun.feng@gmail.com, Sergey Senozhatsky , Steven Rostedt Subject: Re: netconsole: HARDIRQ-safe -> HARDIRQ-unsafe lock order warning In-Reply-To: References: <4c4ed7b836828d966bc5bf6ef4d800389ba65e77.camel@gmx.de> <7a2b44c9e95673829f6660cc74caf0f1c2c0cffe.camel@gmx.de> <5b509b1370d42fd0cc109fc8914272be6dcfcd54.camel@gmx.de> <84a539f4kf.fsf@jogness.linutronix.de> <847by65wfj.fsf@jogness.linutronix.de> Date: Thu, 11 Sep 2025 15:09:23 +0206 Message-ID: <84h5x9xht0.fsf@jogness.linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On 2025-09-10, Petr Mladek wrote: > I would personally try the appraoch with the "unsafe" write_atomic() > callback first I will prepare a patch for this. John