My host is Windows 7 (64) Home Premium, running Ubuntu Linux in VB. This morning I accepted the latest VB upgrade to 5.1.26 r117224, which went through fine as usual, and accepted the corresponding Extension Pack upgrade.
At which point, any attempt to boot my Ubuntu 17.04 resulted in:
--------------------------- VirtualBox.exe - Application Error --------------------------- The instruction at 0xeb7d6d43 referenced memory at 0x00000018. The memory could not be read. Click on OK to terminate the program --------------------------- OK ---------------------------Rebooting the PC made no difference. VB marks the image as Aborted.
I was about to come here to report, when I thought I'd better try booting the old images I have for Ubuntu 16.04 & 14.04. These booted fine. At which point, my 17.04 now booted without problem!
However, since then my Ubuntu 17 image has reverted to the above error, regardless of what I do or do not boot first.
My previous VB update was, I believe, accepted a week ago (after a lapse of a few weeks), and that was fine, so this problem appears to have come from the very latest release.
So I am stuck now unable to do my work What do I do now to deal with this, please?
EDIT: FWIW, I completely uninstalled VB and reinstalled. Same crash on trying to run up the image. As of right now, I have been able to get into my VB 5.1.26 with Ubuntu 17, by getting into an old Ubuntu 16 image (sometimes works, sometimes same error), and then running up the other VB image. I do not dare quit, as I'm not at sure I'll be able to run it again....
P.S.
My problem looks like that reported below in post viewtopic.php?f=3&t=84015 Unlike that user, I have attached my VBox.log when it crashes, does that help?