Failed to map guest I/O buffer for write access with status 0xC0000044

Sandro · 30 Jun 2021

Hi!

I am seeing a strange error on my Windows 2004 Pro host machine when running my guest virtual machine (also Windows 2004 Pro).

Edit: the same is happening with upgraded version 21H1.

Failed to map guest I/O buffer for write access with status 0xC0000044-hosterror.png

Here is the counterpart warning on guest:

Failed to map guest I/O buffer for write access with status 0xC0000044-guesterror.png

The error is associated to the automatic checkpoint file, not the main .vhdx itself.

Thank you for your analysis!

Sandro

Sandro · 12 Jul 2021

It may or may not be related to these errors but there is now a new error showing up once:

DM operation remove for the virtual machine '...' failed with error: %%2147753985 (0x80042001) (Virtual machine ID ...).
Source: Hyper-V-Compute
Event ID: 10019
Level: Error
OpCode: Ino