Hang/Crash when trying to choose disc (VBox 4.3.18)

Discussions about using Linux guests in VirtualBox.

Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Thomas_123 » 14. Oct 2014, 22:21

Host: Windows 7 64-bit
VBox: 4.3.18
Guest: Ubuntu 14.04 LTS

Similar to another post titled "Hang/Crash when trying to choose disc" (can not post url_ because first day on the forum..)

Steps:
1. Start VM
2. Try to mount an ISO: Devices menu > CD/DVD devices
3. VirtualBox hangs forever when clicking on "CD/DVD devices" (no dialog opened), the only solution is to Power off the machine

Best,
Thomas
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Stefanus » 29. Oct 2014, 15:42

I have the same issue with different Windows Guests:

Host: Windows 7 64-bit
VBox: 4.3.18
Guests: Windows 7 64-Bit, Windows Server 2008 64-Bit

Regards,
Steff
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby loukingjr » 29. Oct 2014, 15:47

See Minimum information needed for assistance.

Do you have the extension pack installed?
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Stefanus » 30. Oct 2014, 10:13

Yes extension pack 4.3.18 is installed. I could reproduce this yesterday on another Windows 7 64-Bit host.

It´s the same issue which was discussed here some time ago:
https://www.virtualbox.org/ticket/10189

It appears to be independent of what OS is running on the guest. The problem doesn´t occur when selecting an iso with the Virtualbox Manager GUI, only when using the console window of a VM.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Stefanus » 3. Dec 2014, 13:59

I found out what caused the problem. The special character "®" in the file name of an ISO.

I edited the VirtualBox configuration file C:\Users\%username%\.VirtualBox\VirtualBox.xml and cleared the list of remembered ISO´s:
<ExtraDataItem name="GUI/RecentListCD" value=""/>

Now I have no more problems to mount ISO´s.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby loukingjr » 3. Dec 2014, 14:45

Good Job although I'm surprised the character caused a problem. You can also remove remembered .isos from the list in the VirtualBox Virtual Media Manager.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby loukingjr » 3. Dec 2014, 15:24

fwiw I inserted the ® character into a Linux .iso and had no problem opening it in VirtualBox.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Stefanus » 4. Dec 2014, 12:17

yes, it seems it wasn´t the "®" character... the problem is back :-(

I also tried to completely remove and reinstall V4.3.20 (including extension pack), unfortunately without success.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby BengtJ » 9. Dec 2014, 15:32

I had the same issue. I had previously used an iso named ubuntu-14.04-desktop-amd64.iso. If I removed the '.' character between 14 and 04 in the path listed in C:\Users\%username%\.VirtualBox\VirtualBox.xml I got it to work. Could it be that the dialog gets confused by multiple '.' characters in iso name?

I use Windows 7 as host.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby mpack » 9. Dec 2014, 15:53

BengtJ wrote:Could it be that the dialog gets confused by multiple '.' characters in iso name?

I doubt it, though it would be easy enough to test. I would be thinking more about the complete path, and how long it is. Also, what exactly is the default path? Does it for example refer to a volume that isn't currently mounted?
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Stefanus » 25. Mar 2015, 09:21

I am still having this issue :cry: It seems to occur rarely because only a few people are reporting it. Ticket #10189 describes the same issue.

I have one Windows 7 64-bit host where the problem occurs permanently. Another Windows 7 64-Bit host where I can reproduce it after some time, but it doesn´t occur permanently. And a third Windows 7 64-Bit host (with older hardware) where the problem doesn´t occur. All hosts are running Virtualbox 4.3.26 with Extension Pack 4.3.26. When I remember correctly this issue occurs since V4.3.16.

Is there something I can do to troubleshoot this with your assistance? I tried the debug mode, but the debug console freezes at the same time when the VM freezes.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby michaln » 25. Mar 2015, 11:52

Needless to say, we can only fix this if we can reproduce it (and we can't -- don't have the magic mix of ingredients), or someone needs to provide a crash dump from a system where the problem does occur. See https://www.virtualbox.org/wiki/Core_dump
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Stefanus » 25. Mar 2015, 13:54

Hello michaln,

thanks for your help and advice. I have created the attached minidump (by using Process Explorer) from the process of a VM after I tried to choose an iso and it hung. Maybe you can analyze it and see what´s the problem :roll:

I'm not sure yet, but you can possibly reproduce it by trying to open an iso under a path named "D:\DL\". It seems this could somehow be the cause of the issue.
Attachments
VirtualBox.zip
(313.08 KiB) Downloaded 12 times
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby mhanor » 26. Mar 2015, 22:45

You should attach a Vbox.log of a hung/crashed VM.
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Re: Hang/Crash when trying to choose disc (VBox 4.3.18)

Postby Stefanus » 27. Mar 2015, 08:43

Hello mhanor,

ok, i attached it. I compared the log before and after the VM hung. It doesn´t change when the VM hangs and I close the console window, no lines are added after the crash.
Attachments
VBox.zip
(11.56 KiB) Downloaded 15 times
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