On Tue, Aug 18, 2020 at 07:19:57PM +0100, John Garry wrote: > On 18/08/2020 13:03, John Garry wrote: > > Hi guys, > > > > JFYI, While doing some testing on v5.9-rc1, I stumbled across this: > > I bisected to here (hopefully without mistake): This one is a long-term problem, see the following discussion: https://lore.kernel.org/linux-block/1553492318-1810-1-git-send-email-jianchao.w.wang@xxxxxxxxxx/ Thanks, Ming