VirtualBox on Windows Host / Ubuntu 16.04 LTS guest crash with Alt Gr escaped keys.

[sharp_pixel]

After typing 5 or 6 'Alt Gr' escaped characters in the Linux Guest, VirtualBox crashes.

I have a french (AZERTY) keyboard and I use 'Alt Gr' all the time for '[', '|', '@', ']', '{' and '}' characters.

It is thus impossible to program anything in the guest under those circumstances.

Host is Windows 10 1607 14393.51 64-bit French. Guest is Ubuntu 16.04 LTS 64-bit.

[B]

I do have the same problem (VM crashes) since upgrade to version 5.1.3 (or maybe 5.1.2), and also with 5.1.4. It occurs with Windows Server 2012 R2 guest on W10 host.

It also occurs with the "alt" key, e.g. alt+tab to switch between apps a few times.

Note: I also use an AZERTY (FR) keyboard.

[Frank Mehnert]

Can you provide a Windows application dump, see here?

[B]

Unfortunately, I had to downgrade back to v5.0.26 so the crash does not occur anymore and I can work.

[B]

I finally found back an old crash report in the EventViewer + associated .wer file (I attached it to this ticket).

EventViewer entry is:

Fault bucket 120532831397, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: VirtualBox.exe
P2: 5.1.4.10228
P3: 57b358f8
P4: VBoxC.dll
P5: 5.1.4.10228
P6: 57b358fc
P7: c0000005
P8: 000000000009d307
P9: 
P10: 

Attached files:

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_VirtualBox.exe_8055e5b580b1e81c6368e7591e8ee35d8d62e05d_59566dcd_1df890c3

Analysis symbol: 
Rechecking for solution: 0
Report Id: 68362726-3471-495e-96c4-708d2b80ff25
Report Status: 0
Hashed bucket: 1ad304454a5af68e006b1d57c47e53eb

EventData

   120532831397 
   4 
   APPCRASH 
   Not available 
   0 
   VirtualBox.exe 
   5.1.4.10228 
   57b358f8 
   VBoxC.dll 
   5.1.4.10228 
   57b358fc 
   c0000005 
   000000000009d307 
    
    
    
   C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_VirtualBox.exe_8055e5b580b1e81c6368e7591e8ee35d8d62e05d_59566dcd_1df890c3 
    
   0 
   68362726-3471-495e-96c4-708d2b80ff25 
   0 
   1ad304454a5af68e006b1d57c47e53eb 

[TJ71]

I have the same problem (VM crashes) since windows10 anniversary update. I had to upgarde vbox. Host Win10, guest Win7 64 prof. The guest system randomly crashed because of Altgr keystroke, as we can see on the top. ('[', '|', '@', ']', '{' and '}' ) I have Hungarian qwertz keyboard. I've already killed guest additions service, disabled graphics accelerateting.

Well known error message with virtualbox.exe: The Instruction at 0x... referenced memory at 0x... The memory could not be read

In addition to, the shared clipboard doesn't operate since vbox 5.1.* versions.

[Frank Mehnert]

This problem sounds like a duplicate of #15719 and is most likely fixed. Could you verify that the most recent 5.1 Windows test build fixes the problem for you?

[Frank Mehnert]

Please reopen if still relevant with VBox 5.1.10.

[B]

Looks good with V5.1.10 I installed this morning; no crash at the moment.