From: Al Viro <viro@ZenIV.linux.org.uk>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>,
Abdul Haleem <abdhalee@linux.vnet.ibm.com>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-xfs <linux-xfs@vger.kernel.org>,
linux-next <linux-next@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
chandan <chandan@linux.vnet.ibm.com>
Subject: Re: [linux-next][XFS][trinity] WARNING: CPU: 32 PID: 31369 at fs/iomap.c:993
Date: Mon, 18 Sep 2017 16:43:29 +0100 [thread overview]
Message-ID: <20170918154328.GA32076@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20170918153947.GA12635@lst.de>
On Mon, Sep 18, 2017 at 05:39:47PM +0200, Christoph Hellwig wrote:
> 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.
sysctl suppressing those two, perhaps?
next prev parent reply other threads:[~2017-09-18 16:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-18 14:56 [linux-next][XFS][trinity] WARNING: CPU: 32 PID: 31369 at fs/iomap.c:993 Abdul Haleem
2017-09-18 15:27 ` Christoph Hellwig
2017-09-18 15:28 ` Jens Axboe
2017-09-18 15:39 ` Christoph Hellwig
2017-09-18 15:43 ` Al Viro [this message]
2017-09-18 15:51 ` Jens Axboe
2017-09-18 21:53 ` Dave Chinner
2017-09-18 21:31 ` Dave Chinner
2017-09-18 22:00 ` Eric Sandeen
2017-09-18 22:04 ` Darrick J. Wong
2017-09-18 22:05 ` Dave Chinner
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