after upgrade virtualbox 5.2.16 ose can not useing windows 7 in virtualbox

[dp_pan]

Hi,anybody
there is a problem, I cannot fix it. please help me thx.
env: host os is freebsd 11.1, virtualbox version is 5.2.16. configure is default.
the guest os is windows 7, after started guest os, the guest os is hung.

[socratis]

First of all, FreeBSD has their own support, but just for kicks, we need to see a complete VBox.log, from a complete VM run:

• Start the VM from cold-boot (not from a paused or saved state) / Observe error / Shutdown the VM (force close it if you have to).
• With the VM completely shut down (not paused or saved), right-click on the VM in the VirtualBox Manager and select "Show Log".
• Save only the first "VBox.log", ZIP it and attach it to your response. See the "Upload attachment" tab below the reply form.

[dp_pan]

thank you.
there is AIO error in log, I can not get it ,please help check the log ,thx

[socratis]

Please re-read the instructions that I gave you on how to properly get the log. I did not ask for "VBox.log.3".

[dp_pan]

ok, there is new log. when I poweron the VM, the VM running for a while , soon afterwards it is not response when click vm's anywhere.

[socratis]

00:05:14.946256 AioMgr0-N: Request 0x0000081d07ab00 failed with rc=VERR_TRY_AGAIN, migrating
	endpoint /u/data/guest_os/vbox/_temst/win7_64_0_0.vdi to failsafe manager.
00:05:14.946339 AIOMgr: Flush failed with VERR_INVALID_PARAMETER, disabling async flushes
00:05:18.456407 AIOMgr: I/O manager 0x000008238583a0 encountered a critical error
	(rc=VERR_FILE_AIO_NO_REQUEST) during operation. Falling back to failsafe mode. Expect
	reduced performance
00:05:18.456426 AIOMgr: Error happened in
	/zu/software/FreeBSD/ports/emulators/virtualbox-ose/work/VirtualBox-5.2.16/src/VBox/VMM/VMMR3
	/PDMAsyncCompletionFileNormal.cpp:(1673){int pdmacFileAioMgrNormal(RTTHREAD, void *)}
00:05:18.456431 AIOMgr: Please contact the product vendor
00:05:31.996410 Changing the VM state from 'RUNNING' to 'SUSPENDING'

It seems that something is going on with your host on the file "/u/data/guest_os/vbox/_temst/win7_64_0_0.vdi". I don't know enough about FreeBSD, but as the last highlighted message says "Please contact the product vendor".

You need to look at your FreeBSD logs and talk to the FreeBSD people. I suspect some issues with your host's hard drive.

[dp_pan]

Thanks for help, I will check the machine's hardware.