From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201])
	(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 A96DB1CC881
	for <linux-kernel@vger.kernel.org>; Wed, 22 Jan 2025 22:58:13 +0000 (UTC)
Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201
ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;
	t=1737586693; cv=none; b=Mkn/qHozE7GDYFPI6dugZ2hlfRdzEohlyESqC4a/ScxkHT/NAvHHWIHS+UMiIlOk8FN4yRA0JRiy0QcHFFNrKwH8iS9sr3nw7laLExPdjAsQzffswD15564j31f8xgTbKMUjI7NmdRVVNcj4tPSWGYUoCJuQwPTRoEEbhNU8x+E=
ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org;
	s=arc-20240116; t=1737586693; c=relaxed/simple;
	bh=TmuOhCvtB0VTMDs1gDiOByresHEu/BL7swcqOXL05Ek=;
	h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References:
	 MIME-Version:Content-Type; b=GMlyTsOZl68KTg91sTB+5I/ymLFm2uo+uB8BqTldTlQbZ36zjrC9qszhXr07dARK202PJaq/W050xTgm8tBSsv9c/1FvnIWS3qp6rsF7oRbqSjw34xOZxHdydldqtkxk2xUyIXDkhjYHStKyympcbNVbAI/ukG7GiQV8F8xYIkM=
ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201
Received: by smtp.kernel.org (Postfix) with ESMTPSA id 180ACC4CED2;
	Wed, 22 Jan 2025 22:58:11 +0000 (UTC)
Date: Wed, 22 Jan 2025 17:58:17 -0500
From: Steven Rostedt <rostedt@goodmis.org>
To: Daniel Wagner <dwagner@suse.de>
Cc: Christoph Hellwig <hch@lst.de>, LKML <linux-kernel@vger.kernel.org>,
 Linus Torvalds <torvalds@linux-foundation.org>, Daniel Wagner
 <wagi@kernel.org>, Hannes Reinecke <hare@suse.de>, Ming Lei
 <ming.lei@redhat.com>, John Garry <john.g.garry@oracle.com>, Jens Axboe
 <axboe@kernel.dk>
Subject: Re: WARNING: CPU: 3 PID: 1 at block/blk-mq-cpumap.c:90
 blk_mq_map_hw_queues+0xf3/0x100
Message-ID: <20250122175817.3eac488f@gandalf.local.home>
In-Reply-To: <20250122125445.37db5c38@gandalf.local.home>
References: <20250122093020.6e8a4e5b@gandalf.local.home>
	<0ec86878-d3c4-400c-a312-9452bf229d45@flourine.local>
	<20250122125445.37db5c38@gandalf.local.home>
X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu)
Precedence: bulk
X-Mailing-List: linux-kernel@vger.kernel.org
List-Id: <linux-kernel.vger.kernel.org>
List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

On Wed, 22 Jan 2025 12:54:45 -0500
Steven Rostedt <rostedt@goodmis.org> wrote:

> Not sure its related. I can see how reproducible this is, and if it is, I
> can try to bisect it.

I bisected it down to: a5665c3d150c98 ("virtio: blk/scsi: replace
blk_mq_virtio_map_queues with blk_mq_map_hw_queues")

And reverting that as well as:

  9bc1e897a821f ("blk-mq: remove unused queue mapping helpers")

It booted fine.

-- Steve