netdev - Re: Regression v6.11 booting cannot mount harddisks (xfs)

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Message-ID: <c9096ee9-0297-4ae3-9d15-5d314cb4f96f@kernel.dk>
Date: Tue, 10 Sep 2024 12:38:00 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Jesper Dangaard Brouer <hawk@...nel.org>,
 Damien Le Moal <dlemoal@...nel.org>,
 Linus Torvalds <torvalds@...uxfoundation.org>,
 LKML <linux-kernel@...r.kernel.org>, Christoph Hellwig <hch@...radead.org>
Cc: Netdev <netdev@...r.kernel.org>, linux-ide@...r.kernel.org,
 cassel@...nel.org, handan.babu@...cle.com, djwong@...nel.org,
 Linux-XFS <linux-xfs@...r.kernel.org>, hdegoede@...hat.com,
 "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
 kernel-team <kernel-team@...udflare.com>
Subject: Re: Regression v6.11 booting cannot mount harddisks (xfs)

On 9/10/24 11:53 AM, Jesper Dangaard Brouer wrote:
> Hi Hellwig,
> 
> I bisected my boot problem down to this commit:
> 
> $ git bisect good
> af2814149883e2c1851866ea2afcd8eadc040f79 is the first bad commit
> commit af2814149883e2c1851866ea2afcd8eadc040f79
> Author: Christoph Hellwig <hch@....de>
> Date:   Mon Jun 17 08:04:38 2024 +0200
> 
>     block: freeze the queue in queue_attr_store
> 
>     queue_attr_store updates attributes used to control generating I/O, and
>     can cause malformed bios if changed with I/O in flight.  Freeze the queue
>     in common code instead of adding it to almost every attribute.
> 
>     Signed-off-by: Christoph Hellwig <hch@....de>
>     Reviewed-by: Bart Van Assche <bvanassche@....org>
>     Reviewed-by: Damien Le Moal <dlemoal@...nel.org>
>     Reviewed-by: Hannes Reinecke <hare@...e.de>
>     Reviewed-by: Chaitanya Kulkarni <kch@...dia.com>
>     Link: https://lore.kernel.org/r/20240617060532.127975-12-hch@lst.de
>     Signed-off-by: Jens Axboe <axboe@...nel.dk>
> 
>  block/blk-mq.c    | 5 +++--
>  block/blk-sysfs.c | 9 ++-------
>  2 files changed, 5 insertions(+), 9 deletions(-)
> 
> git describe --contains af2814149883e2c1851866ea2afcd8eadc040f79
> v6.11-rc1~80^2~66^2~15

Curious, does your init scripts attempt to load a modular scheduler
for your root drive?

Reference: https://git.kernel.dk/cgit/linux/commit/?h=for-6.12/block&id=3c031b721c0ee1d6237719a6a9d7487ef757487b

-- 
Jens Axboe