Find specific changes between revisions

[Jerry]

On Sat, 9 May 2020 13:41:15 -0300, Mario Lobo commented:
>Hi;
>
>I'm attempting to port VirtualBox 6.0.8 to FreeBSD. I managed do get it
>working perfectly up to
>
>11.3-STABLE-amd64-r359971.
>
>After an svn up to 11.4-PRERELEASE-r360676M, VirtualBox 6.0.8 no longer
>works. Bringing world+kernel back to 11.3-STABLE-amd64-r359971 makes it
>work again, despite whatever ports I've got installed on my machines.
>This was tested on 2 physical machines (desktop and laptop) and it is
>true for both.
>
>When starting a VM on 11.4-PRERELEASE-r360676M, the VM console window
>shows up for 2 seconds and vanishes. Tha VM log shows this:
>
>--------------------------------------------------------------------------------------------------------
>00:00:02.343339 AssertLogRel
>/Vmachines/ports/emulators/virtualbox-ose/work/VirtualBox-6.0.8/src/VBox/Main/src-client/VMMDevInterface.cpp(960)
>int VMMDev::i_guestPropLoadAndConfigure(): timestampsOut.size() ==
>cProps 00:00:02.343365 AssertLogRel
>/Vmachines/ports/emulators/virtualbox-ose/work/VirtualBox-6.0.8/src/VBox/Main/src-client/VMMDevInterface.cpp(1157)
>static int VMMDev::drvConstruct(PPDMDRVINS, PCFGMNODE, uint32_t):
>RT_SUCCESS_NP(rc)
>00:00:02.343450 VERR_INTERNAL_ERROR_3 (-227) - Internal error no. 3.
>00:00:02.345073 PDM: Failed to construct 'VMMDev'/0!
>VERR_INTERNAL_ERROR_3 (-227) - Internal error no. 3.
>00:00:02.347293 GIM: HyperV: Resetting MMIO2 regions and MSRs
>00:00:02.531769 VMSetError:
>/Vmachines/ports/emulators/virtualbox-ose/work/VirtualBox-6.0.8/src/VBox/VMM/VMMR3/VM.cpp(328)
>int VMR3Create(uint32_t, PCVMM2USERMETHODS, PFNVMATERROR, void *,
>PFNCFGMCONSTRUCTOR, void *, PVM *, PUVM *); rc=VERR_INTERNAL_ERROR_3
>00:00:02.531778 VMSetError: Internal error no. 3.
>00:00:02.533693 ERROR [COM]: aRC=NS_ERROR_FAILURE (0x80004005)
>aIID={872da645-4a9b-1727-bee2-5585105b9eed} aComponent={ConsoleWrap}
>aText={Internal error no. 3. (VERR_INTERNAL_ERROR_3)}, preserve=false
>aResultDetail=-227
>00:00:02.534000 Console: Machine state changed to 'PoweredOff'
>--------------------------------------------------------------------------------------------------------
>
>This is the same error that shows when trying to run it on
>12.1-STABLE-amd64-r359985 by the way.
>
>I am no wiz. And on top of that, VBox is extremely complex but I don't
>think that the problem lies on the kernel or on vbox kernel modules.
>They all load correctly and without errors on both
>11.4-PRERELEASE-r360676M and 12.1-STABLE-amd64-r359985.
>
>What looks like (to my poor lame eyes) is that some revision change in
>userland "broke" the connection between vbox and its modules/drivers.
>
>So my quest is to try to pinpoint the changes between
>11.3-STABLE-amd64-r359971 and 11.4-PRERELEASE-r360676M that made
>VirtualBox 6.0.8 stop working, and I was wondering if anyone here
>could give me some direction on how to accomplish that.
>
>Thanks for any advice.

I would love to know what happened between 11.3 and 12.x. See Bug:
<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237666>. No one has
fixed that yet.

-- 
Jerry
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