Re: binary execution from DAX mount hang since next-20160407

[Xiong Zhou]

# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-4.6.0-rc3-next-20160414+
root=/dev/mapper/xxxxx--01-root ro crashkernel=auto
rd.lvm.lv=xxxxx-01/root rd.lvm.lv=xxxxxx/swap console=ttyS1,115200n81
memmap=10G!5G memmap=15G!15G selinux=0 LANG=en_US.UTF-8

# mkfs.ext4 -V
mke2fs 1.43-WIP (15-Mar-2016)
Using EXT2FS Library version 1.43-WIP

# mkfs.xfs -V
mkfs.xfs version 4.5.0


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