[vbox-dev] attach CD/DVD aborts the guest

[Perry Halbert]

Tracked it down to 3D acceleration.  Disable that and you can attach a 
CD from within the guest.  You can also leave 3D enabled and simply log 
out and attach the CD from the login screen.

VBox lightdm-greeter?



On 03/12/2013 12:20 PM, Perry Halbert wrote:
> More interesting is I can add the CD/DVD from the main manager storage 
> section (while guest is running) and it works as it should, just not 
> from the guest. It also make no difference if the GAs are installed or 
> not.
>
>
> On 03/09/2013 08:34 AM, Perry Halbert wrote:
>> I still can't find the exact cause even with the debug build.  But I 
>> see this in the hosts syslog
>>
>> kernel: [  864.637068] EXT4-fs (sdb1): Unaligned AIO/DIO on inode 
>> 23068695 by AioMgr0-N; performance will be poor.
>> kernel: [  907.647546] VirtualBox[3025]: segfault at 10 ip 
>> 00007ffe574ede84 sp 00007fff617f1610 error 4 in 
>> libpthread-2.15.so[7ffe574e4000+18000]
>>
>> All that is needed to trigger this segfault is to select choose a 
>> virtual cd in the devices menu.
>>
>> This happens on two separate (Debian based) systems the laptop was 
>> built using deb build and the main PC as a run file install.
>>
>>
>>
>> On 03/07/2013 01:18 PM, Perry Halbert wrote:
>>
>>> One more thing.  I can revert back to r44844 and the problem 
>>> disappears.  But wait it gets better.
>>> After the latest today r44929 saved state even causes an abort.
>>>
>>>
>>> On 03/07/2013 08:22 AM, Perry Halbert wrote:
>>>> OK.  It's more of a heads up any way because usually when I see 
>>>> these issues there is a gremlin lurking somewhere.
>>>>
>>>> If I locate it I will send along the cause.
>>>>
>>>>
>>>>
>>>>
>>>> On 03/07/2013 07:52 AM, Klaus Espenlaub wrote:
>>>>> On 07.03.2013 00:38, Perry Halbert wrote:
>>>>>> Still can't locate it. All I know for sure is that it is a segfault.
>>>>>>
>>>>>> Core was generated by `/opt/VirtualBox/VirtualBox -startvm Debian-SID'.
>>>>>> Program terminated with signal 11, Segmentation fault.
>>>>>> #0 0x00007fb07dbf3e84 in ?? ()
>>>>>>
>>>>>> Core was generated by `/opt/VirtualBox/VirtualBox -startvm Mint-14'.
>>>>>> Program terminated with signal 11, Segmentation fault.
>>>>>> #0 0x00007f3ba1546e84 in ?? ()
>>>>>>
>>>>>> It happens the second I click on select CD in the device menu.
>>>>>>
>>>>>> I must admit that I am not the sharpest knife in the drawer with core
>>>>>> dumps. The dump is 7MB tar'ed (217.5MB) each.
>>>>>>
>>>>>> I can send it to you if you like.
>>>>> The core won't help me much since you're running your own builds, and I
>>>>> wouldn't have the matching debug info.
>>>>>
>>>>> Did you install the ...-dbg package? Then you should get much more out
>>>>> of gdb than just some hex values.
>>>>>
>>>>> Klaus
>>>>>> On 03/04/2013 09:02 AM, Klaus Espenlaub wrote:
>>>>>>> On 03.03.2013 19:01, Perry Halbert wrote:
>>>>>>>> I seem to have an issue that I can't put my finger on. With the latest
>>>>>>>> builds from SVN r44872&  r44885 if I try to select a CD/DVD image to the
>>>>>>>> "running" guest the guest immediately aborts. I can remove an already
>>>>>>>> attached CD/DVD image with no issues. I can't seem to find the trigger
>>>>>>>> that is causing this issue. Anyway I thought you should know.
>>>>>>> How about enabling core dumps and looking where it crashes? I tried a
>>>>>>> few CD unmount/mount combinations, and couldn't trigger any problems,
>>>>>>> neither in VBoxSVC nor in the GUI.
>>>>>>>
>>>>>>> Klaus
>>>>>>>
>>>>>>>> Linux host guest does not matter.
>>>>> _______________________________________________
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>>>>>
>>>>
>>>>
>>>>
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