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Date:   Fri, 4 Aug 2023 15:42:48 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Sergey Senozhatsky <senozhatsky@chromium.org>
Cc:     Dusty Mabe <dusty@dustymabe.com>, Hannes Reinecke <hare@suse.de>,
        wq@lst.de, Minchan Kim <minchan@kernel.org>,
        Jens Axboe <axboe@kernel.dk>, linux-kernel@vger.kernel.org,
        linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
        Andrew Morton <akpm@linux-foundation.org>, marmijo@redhat.com
Subject: Re: XFS metadata CRC errors on zram block device on ppc64le
 architecture
Message-ID: <20230804134248.GA26611@lst.de>
References: <b2d40565-7868-ba15-4bb1-fca6f0df076b@dustymabe.com> <20230802094106.GA28187@lst.de> <3f36882c-b429-3ece-989b-a6899c001cbd@suse.de> <43843fec-f30a-1edc-b428-1d38ddb1050f@dustymabe.com> <a0f05188-d142-82f2-74aa-6c9a6ae2bbc9@dustymabe.com> <20230804032523.GA81493@google.com>
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FYI, I've found an arm64 system with 16k page size support, and while
I can't reproduce the exact issue, I do see corruption with I/O test
on zram that don't show on the same system with 4k pages.  I'm trying
to understand the details at the moment.