On Fri, Feb 15, 2019 at 06:59:48PM +0200, Meelis Roos wrote: > The result of the bisection is > [88dbcbb3a4847f5e6dfeae952d3105497700c128] blkdev: avoid migration stalls for blkdev pages > > Is that result relevant for the problem or should I continue bisecting between 4.20.0 and the so far first bad commit? Can you try reverting the commit and see if it makes the problem go away? - Ted