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From: Keith Busch <kbusch@kernel.org>
To: Gwendal Grignou <gwendal@chromium.org>
Cc: Robert Beckett <bob.beckett@collabora.com>,
	Christoph Hellwig <hch@lst.de>, kbusch <kbusch@meta.com>,
	linux-nvme <linux-nvme@lists.infradead.org>,
	sagi <sagi@grimberg.me>, stable <stable@vger.kernel.org>
Subject: Re: [PATCH] nvme-pci: Remove O2 Queue Depth quirk
Date: Thu, 5 Dec 2024 14:03:00 -0800	[thread overview]
Message-ID: <Z1IjFDWwAonRI30D@kbusch-mbp.dhcp.thefacebook.com> (raw)
In-Reply-To: <CAPUE2utp0qOiMRNPwtn_gF45f2awa9UyNJ91zmpRbtu6zR5p9w@mail.gmail.com>

On Thu, Dec 05, 2024 at 01:53:29PM -0800, Gwendal Grignou wrote:
> Since limiting the queue depth to 2 is only needed for a small subset
> of eMMC memory modules that can be connected behind the bridge, would
> it make sense to apply this patch, but add the kernel module parameter
> mentioned earlier for impacted devices?

I don't think qd2 is needed for anyone, though. The problem sounds like
it was root caused to a boundary condition, which is addressed in a
different patch. But I am not 100% sure, as the thread was left hanging
for some external confirmation:

  https://lore.kernel.org/linux-nvme/Z0DdU9K9QMFxBIL8@kbusch-mbp.dhcp.thefacebook.com/


      reply	other threads:[~2024-12-05 22:03 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-11 17:46 [PATCH] nvme-pci: qdepth 1 quirk Keith Busch
2024-09-12  6:57 ` Christoph Hellwig
2024-09-12 16:30   ` Robert Beckett
2024-10-29  2:42     ` [PATCH] nvme-pci: Remove O2 Queue Depth quirk Gwendal Grignou
2024-10-29  2:52       ` Greg KH
2024-10-29  7:41       ` Christoph Hellwig
2024-10-29 18:58         ` Gwendal Grignou
2024-10-29 19:16           ` Keith Busch
2024-11-07 16:50             ` [PATCH] nvme-pci: 512 byte dma pool segment quirk Bob Beckett
2024-11-07 17:19               ` Keith Busch
2024-11-07 17:35                 ` Robert Beckett
2024-11-08  7:08                 ` Christoph Hellwig
2024-10-29 19:18           ` [PATCH] nvme-pci: Remove O2 Queue Depth quirk Robert Beckett
2024-12-05 21:53             ` Gwendal Grignou
2024-12-05 22:03               ` Keith Busch [this message]

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