Linux filesystem through share folder will be data crash

[C-MIKE]

Host Windows 7, Phy 16 GB RAM
Guest Linux Centos 6.8, Virtual 3 GB RAM
/share is share folder on Windows NTFS.

Reproduce command:
*---------- Start
dd if=/dev/zero of=/share/tmp_fs bs=1M count=300
mkreiserfs -f /share/tmp_fs
mount -o loop /share/tmp_fs ~/x
touch ~/x/mark (or copy anything to there)
umount ~/x
*---------- End

Now, if you re-mount tmp_fs, you will found nothing in filesystem, and if you fsck on it, it will show filesystem broken.

On 5.0.28, all thing are fine
On 5.0.40 and above 5.1.x (Note: I don't try on 5.0.30 - 5.0.38), you will catch the bug.

[aeichner]

Could you please attach a VBox.log from a run with 5.0.28 where it worked and a run with a non working version? Btw. did you update the guest additions inside the VM too?

[C-MIKE]

Replying to aeichner:

Could you please attach a VBox.log from a run with 5.0.28 where it worked and a run with a non working version? Btw. did you update the guest additions inside the VM too?

This is VBox.log from 5.0.28, (Note: it does not log file after execute above command lines, it is normal log file).

btw: I was match the guest additions to VirtualBox version, I also reboot computer and VBox, but no effect.