Re: [XFS][trinity] WARNING: CPU: 32 PID: 31369 at fs/iomap.c:993
From: Christoph Hellwig <hch@lst.de>
Date: 2017-09-18 15:39:50
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On Mon, Sep 18, 2017 at 09:28:55AM -0600, Jens Axboe wrote:
If it's expected, why don't we kill the WARN_ON_ONCE()? I get it all the time running xfstests as well.
Dave insisted on it to decourage users/applications from mixing mmap and direct I/O. In many ways a tracepoint might be the better way to diagnose these.