[vbox-dev] Failed to load unit "hda" on OSE VirtualBox 5.1.24 (windows)

[Andreas Löffler]

Hi Mikhail,

the error on the custom-built OSE version high likely comes from
two revision checks we have in our code, specifically in DevHDA.cpp /
hdaLoadExec():

if (SSMR3HandleRevision(pSSM) >= 116273)

As the OSE version has a different SVN revision than our official
versions, this code path won't be taken and therefore the loading fails.

I'll see if I somehow can work around this.

Andreas



Kind regards / Mit freundlichen Grüßen

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Andreas Löffler             | VirtualBox Engineering
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On 26.07.2017 08:21, Mikhail Kovalev wrote:
> Hi all,
> 
> we have a custom-built OSE version of VirtualBox 5.1.24 for windows.
> When "Intel HDA" is selected as an audio adapter and I create an online
> snapshot, power off the VM, revert the snapshot and then start the VM
> again I get an error message "Failed to load unit 'hda'
> (VERR_SMM_LOADED_TOO_LITTLE)" or "Failed to load unit 'hda'
> (VERR_SSM_STRUCTURE_MAGIC)". 
> 
> With AC97 all works fine. And I cannot reproduce the problem on the
> official 5.1.24 build. So there must be something in our build
> environment that makes it fail. However, our build environment didn't
> change from version VirtualBox 5.1.22 and with 5.1.22 we didn't have any
> problems. 
> 
> Does anyone have a hint where the problem could be? And whether there
> were changes in between 5.1.22 and 5.1.24 that could cause the problem?
> 
> Here is the relevant part of the log with "VERR_SSM_STRUCTURE_MAGIC"
> failure and the content of the "hda" unit.
> 
> 000004796 00:00:04.795395 EMT      VMSetError:
> C:\jenkins\workspace\VirtualBox-x86-amd64\devel\5.1.24\src\VBox\VMM\VMMR3\SSM.cpp(8707)
> int __cdecl ssmR3LoadExecV2(struct VM *,struct SSMHANDLE *);
> rc=VERR_SSM_STRUCTURE_MAGIC
> 000004796 00:00:04.795418 EMT      VMSetError: Failed to load unit 'hda'
> 000004796 00:00:04.795450 main     GUI:
> UIMachineLogicNormal::sltCheckForRequestedVisualStateType:
> Requested-state=0, Machine-state=13
> 000004796 00:00:04.795460 main     GUI: UISession::sltAdditionsChange:
> GA state change event came, notifying listeners.
> 000004796 00:00:04.795461 main     GUI:
> UIMachineLogicNormal::sltCheckForRequestedVisualStateType:
> Requested-state=0, Machine-state=13
> 000004796 00:00:04.795478 EMT      SSM: Unit 'hda' contents:
> 000004796 00:00:04.795479 EMT      0x00000000: 1c 00 00 00 02 01 20
> 19-00 80 76 84 83 00 00 00  ...... ...v.....
> 000004796 00:00:04.795480 EMT      0x00000010: 00 01 34 10 00 00 00
> 00-00 01 00 01 00 00 00 00  ..4.............
> 000004796 00:00:04.795481 EMT      0x00000020: 00 00 00 00 00 00 00
> 00-00 00 00 00 00 00 00 00  ................
> .....
> 000004797 00:00:04.796248 EMT      0x00004090: 00 ba 00 be 00 be 00
> c0-00 c1 00 c0 00 c0 00 b8  ................
> 000004797 00:00:04.796248 EMT      0x000040a0: 00 b7 00 af 00 af 00
> ac-00 ac 00 a6 00 a6 00 97  ................
> 000004797 00:00:04.796249 EMT      0x000040b0: 00 96 00 86 00 85 00
> 75-00 76 00 66 00 66 00 57  .......u.v.f.f.W
> 000004797 00:00:04.796250 EMT      0x000040c0: 00 56 00 49 00 49 00
> 40-00 40 00 32 00 33 00 26  .V.I.I. at .@.2.3.&
> 000004797 00:00:04.796265 EMT      0x000040d0: 00 25 00               -
>                         .%.
> ....
> 
> I would really appreciate any help you can provide.
> 
> Best regards,
> Mikhail
> 
> 
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> vbox-dev mailing list
> vbox-dev at virtualbox.org
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> 
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