----- Original Message ----- > > > ----- Original Message ----- > > I saw this kind io hang in ltp/fs_fill test reliably and the loop is > > over image in tmpfs: > > > > https://lkml.org/lkml/2020/7/26/77 > > > > And I have verified that the following patch can fix the issue: > > > > https://lore.kernel.org/linux-block/bc5fa941-3b7c-f28e-dd46-1a1d6e5c40a8@xxxxxxxxx/T/#t > > Thanks, I'll test your patch with my setup. I've seen no hangs over past ~24 hours with patch above. Thanks, Jan