linux-kernel - Re: [PATCH v2 00/24] ext4: enable block size larger than page size

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Message-ID: <20251112152933.GC3131573@mit.edu>
Date: Wed, 12 Nov 2025 10:29:33 -0500
From: "Theodore Ts'o" <tytso@....edu>
To: Baokun Li <libaokun1@...wei.com>
Cc: linux-ext4@...r.kernel.org, adilger.kernel@...ger.ca, jack@...e.cz,
        linux-kernel@...r.kernel.org, kernel@...kajraghav.com,
        mcgrof@...nel.org, ebiggers@...nel.org, willy@...radead.org,
        yi.zhang@...wei.com, yangerkun@...wei.com, chengzhihao1@...wei.com,
        Baokun Li <libaokun@...weicloud.com>,
        "Darrick J. Wong" <djwong@...nel.org>
Subject: Re: [PATCH v2 00/24] ext4: enable block size larger than page size

On Wed, Nov 12, 2025 at 02:27:19PM +0800, Baokun Li wrote:
> Darrick’s reply in another thread has already made a similar change,
> so we can apply that patch first for testing.

I'll give that a try when I have a chance.  For now, here's a test run
using a version of my test appliance which excludes the way group for
the config ext4/lbs, and which has a modified e2fsprogs (built from
the latest e2fsprogs git repo) which suppresses both warnings when
using large block sizes if the kernel has the blocksize_gt_pagesize
feature detected.

ext4/lbs: 595 tests, 6 failures, 101 skipped, 6656 seconds
  Failures: ext4/033 generic/620 generic/759 generic/760
  Flaky: generic/251: 60% (3/5)   generic/645: 40% (2/5)
Totals: 619 tests, 101 skipped, 25 failures, 0 errors, 6291s

Fixing all of these filures is not a blocker for getting this patchset
upstream, but it would be nice for us to figure out the root cause for
them, so we can decide whether it's better to exclude the tests for
now, or whether there's an easy fix.

Thanks,

					- Ted