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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>, Richard Weinberger <richard@nod.at>,
	 Anton Ivanov <anton.ivanov@cambridgegreys.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	 Justin Sanders <justin@coraid.com>,
	Denis Efremov <efremov@linux.com>,
	 Josef Bacik <josef@toxicpanda.com>,
	Geoff Levand <geoff@infradead.org>,
	 Ilya Dryomov <idryomov@gmail.com>,
	"Md. Haris Iqbal" <haris.iqbal@ionos.com>,
	 Jack Wang <jinpu.wang@ionos.com>, Ming Lei <ming.lei@redhat.com>,
	 Maxim Levitsky <maximlevitsky@gmail.com>,
	Alex Dubov <oakad@yahoo.com>,
	 Ulf Hansson <ulf.hansson@linaro.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	 Vignesh Raghavendra <vigneshr@ti.com>,
	Vineeth Vijayan <vneethv@linux.ibm.com>,
	linux-block@vger.kernel.org,  nbd@other.debian.org,
	ceph-devel@vger.kernel.org, linux-mmc@vger.kernel.org,
	 linux-mtd@lists.infradead.org, linux-s390@vger.kernel.org,
	 Linux-Renesas <linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH 17/17] mmc: pass queue_limits to blk_mq_alloc_disk
Date: Wed, 21 Feb 2024 10:37:39 +0100	[thread overview]
Message-ID: <CAMuHMdUVHvgVkZsmbsxkScDq+XzMLTONk3Cwmg2N_Rz_-qqWxw@mail.gmail.com> (raw)
In-Reply-To: <20240221054424.GA12033@lst.de>

Hi Christoph,

On Wed, Feb 21, 2024 at 6:44 AM Christoph Hellwig <hch@lst.de> wrote:
> On Tue, Feb 20, 2024 at 11:01:05PM +0100, Geert Uytterhoeven wrote:
> > On Thu, Feb 15, 2024 at 9:16 AM Christoph Hellwig <hch@lst.de> wrote:
> > > Pass the queue limit set at initialization time directly to
> > > blk_mq_alloc_disk instead of updating it right after the allocation.
> > >
> > > This requires refactoring the code a bit so that what was mmc_setup_queue
> > > before also allocates the gendisk now and actually sets all limits.
> > >
> > > Signed-off-by: Christoph Hellwig <hch@lst.de>
> >
> > Thanks for your patch, which is now commit 616f876617927732 ("mmc: pass
> > queue_limits to blk_mq_alloc_disk") in block/for-next.
> >
> > I have bisected the following failure on White-Hawk (also seen on
> > other R-Car Gen3/4 systems) to this commit:
> >
> >     renesas_sdhi_internal_dmac ee140000.mmc: mmc0 base at
> > 0x00000000ee140000, max clock rate 200 MHz
> >     mmc0: new HS400 MMC card at address 0001
> >     ------------[ cut here ]------------
> >     WARNING: CPU: 1 PID: 20 at block/blk-settings.c:202
> > blk_validate_limits+0x12c/0x1e0
>
> This is:
>
>         if (lim->virt_boundary_mask) {
>                 if (WARN_ON_ONCE(lim->max_segment_size &&
>                                  lim->max_segment_size != UINT_MAX))
>                         return -EINVAL;
>
> so we end up here with both a virt_boundary_mask and a
> max_segment_size set, which is rather bogus.  I think the
> problem is the order of check in the core blk_validate_limits
> that artificially causes this.  Can you try this patch?

Thanks, good thinking, as that fixed the issue for me!

Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

  reply	other threads:[~2024-02-21  9:37 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-15  7:02 pass queue_limits to blk_mq_alloc_disk for simple drivers Christoph Hellwig
2024-02-15  7:02 ` [PATCH 01/17] ubd: pass queue_limits to blk_mq_alloc_disk Christoph Hellwig
2024-02-15  7:02 ` [PATCH 02/17] aoe: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 03/17] floppy: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 04/17] mtip: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 05/17] nbd: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 06/17] ps3disk: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 07/17] rbd: " Christoph Hellwig
2024-02-20 11:18   ` Ilya Dryomov
2024-02-15  7:02 ` [PATCH 08/17] rnbd-clt: " Christoph Hellwig
2024-02-16  7:49   ` Jinpu Wang
2024-02-15  7:02 ` [PATCH 09/17] sunvdc: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 10/17] gdrom: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 11/17] ms_block: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 12/17] mspro_block: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 13/17] mtd_blkdevs: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 14/17] ubiblock: " Christoph Hellwig
2024-02-18  2:33   ` Zhihao Cheng
2024-02-15  7:02 ` [PATCH 15/17] scm_blk: " Christoph Hellwig
2024-02-15  7:02 ` [PATCH 16/17] ublk: " Christoph Hellwig
2024-02-15  7:03 ` [PATCH 17/17] mmc: " Christoph Hellwig
2024-02-15 16:40   ` Ulf Hansson
2024-02-15 16:49     ` Christoph Hellwig
2024-02-15 16:53       ` Ulf Hansson
2024-02-20 22:01   ` Geert Uytterhoeven
2024-02-20 22:14     ` Geert Uytterhoeven
2024-02-21  5:44     ` Christoph Hellwig
2024-02-21  9:37       ` Geert Uytterhoeven [this message]
2024-02-20 13:22 ` pass queue_limits to blk_mq_alloc_disk for simple drivers Jens Axboe

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