Re: possible regression fs corruption on 64GB nvme

To: Robert Beckett <bob.beckett@xxxxxxxxxxxxx>
Subject: Re: possible regression fs corruption on 64GB nvme
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 10 Sep 2024 06:24:11 +0200
Cc: linux-nvme <linux-nvme@xxxxxxxxxxxxxxxxxxx>, Keith Busch <kbusch@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxx>, Christoph Hellwig <hch@xxxxxx>, Sagi Grimberg <sagi@xxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, linux-mm <linux-mm@xxxxxxxxx>
In-reply-to: <191d810a4e3.fcc6066c765804.973611676137075390@collabora.com>
References: <191d810a4e3.fcc6066c765804.973611676137075390@collabora.com>
User-agent: Mutt/1.5.17 (2007-11-01)

Hi Robert,

what platform is this on?  Does it have DMA that is not cache coherent?

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References:
- possible regression fs corruption on 64GB nvme
  - From: Robert Beckett