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Date:   Tue, 20 Aug 2019 08:14:26 +0200
From:   "hch@lst.de" <hch@lst.de>
To:     Dave Chinner <david@fromorbit.com>
Cc:     "hch@lst.de" <hch@lst.de>,
        "Verma, Vishal L" <vishal.l.verma@intel.com>,
        "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
        "Williams, Dan J" <dan.j.williams@intel.com>,
        "darrick.wong@oracle.com" <darrick.wong@oracle.com>
Subject: Re: 5.3-rc1 regression with XFS log recovery
Message-ID: <20190820061426.GA28042@lst.de>
References: <20190818071128.GA17286@lst.de> <20190818074140.GA18648@lst.de> <20190818173426.GA32311@lst.de> <20190819000831.GX6129@dread.disaster.area> <20190819034948.GA14261@lst.de> <20190819041132.GA14492@lst.de> <20190819042259.GZ6129@dread.disaster.area> <20190819042905.GA15613@lst.de> <20190819044012.GA15800@lst.de> <20190819053122.GK7777@dread.disaster.area>
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On Mon, Aug 19, 2019 at 03:31:22PM +1000, Dave Chinner wrote:
> But I'm not so sure that's all there is to it. I turned KASAN on and
> it works for the first few mkfs/mount cycles, then a mount basically
> pegs a CPU and it's spending most of it's time inside KASAN
> accouting code like this:

Did that KASAN spat lead anywhere?  I've done some KASAN runs now and
I've not seen anything yet after running mkfs/mount/umount in a loop.