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

[Perry Halbert]

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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>>
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