VirtualBox

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Ticket Resolution Summary Owner Reporter
#18552 duplicate Host-guest shared-folder stops working and guest hangs JohnnyG
Description

Often when trying to access a shared folder from Guest (Win 7 Ultimate N 32bit, fully updated), the explorer.exe stops responding, the folder I/O stops and Guest becomes unstable (other processes don't stop working, only those dependent on explorer). The only solution is hard reset and try again.

Sometimes I am able to transfer larger portions of data to Guest local drive, but usually I can't transffer more than 100 files (100s of MB) at a time until the freeze occurs.

I tried reinstalling Guest Additions, no effect.

I am using an R console on the Guest (cran.r-project.org) and an R-based data analysis program.

Windows reporting says:

Problem Event Name: AppHangB1
Application Name: explorer.exe
Application Version: 6.1.7601.23537
Application Timestamp: 57c44cc4
Hang Signature: 28df
Hang Type: 1
OS Version: 6.1.7601.2.1.0.256.28

In Host (Win 10, up-to-date), the shared folder works fine.

#18549 fixed Windows host wakes from standby mode constantly => Fixed in SVN Daniel Karsubka
Description

I already posted this elsewhere, but it was recommended I open a ticket.

Virtualbox in its current versions 5 and 6 wake up Windows hosts from standby mode.

Executing powercfg -lastwake shows that VBoxSVC.exe is the cause.

The root cause for this is here in line 192: https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Main/src-server/win/HostDnsServiceWin.cpp#L192

SetWaitableTimer is called with the last parameter being "true". The last parameter is whether or not to resume the system when in standby mode. There is no reason to wake up the host every few seconds. It is also the only occurrence in the project. Change it to "false", recompile, republish and the problem should be gone.

https://docs.microsoft.com/en-us/windows/desktop/api/synchapi/nf-synchapi-setwaitabletimer

Thank you very much!

#18548 invalid virtualbox 6.0.4 can not install ubuntu19.04 daily widon1104
Description

I use ubuntu18.04 want install ubuntu19.04 in virtualbox I install latest virtualbox 6.0.4 but still can not install ubuntu19.04 daily 20190406

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