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Date: Tue, 18 Jul 2017 23:54:38 -0700
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: Metadata corruption detected at xfs_inode_buf_verify
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To: Christian Kujau <christian@nerdbynature.de>
Cc: linux-xfs@vger.kernel.org

On Mon, Jul 17, 2017 at 12:47:16AM -0700, Christian Kujau wrote:
>  | and I'm pretty sure that the USB mass storage interface/driver does not 
>  | pass through cache flushes or support FUA operations.

The usb-storage driver of course implements cache flushes and FUA
properly - it's just a SCSI transport after all.  But that doesn't mean
that the device itself can't have issue, of which there have been
plenty.