Installing the kext hangs the system at boot

[rickardp]

H/W: Akitio Thunder2 / NVIDIA GTX 1060, MacBookPro11,3

I build the kext using ./package/build.sh and install the pkg. After a reboot, the system hangs at about 80% in the progress bar. The system fails to boot even if I unplug the eGPU.

I can SSH into the machine, delete the /Library/Extensions/NVDAEGPUSupport.kext and do "sudo reboot -q" and the system boots again, but without the eGPU.

Tail of dmesg

SIOCPROTODETACH_IN6: utun0 error=6
NVDAGK100HAL loaded and registered
nvAccelerator::attach provider NVDAgl parent GFX0
nvAccelerator::probe enter provider: NVDAgl [score 130]
nvAccelerator::probe parent: GFX0
nvAccelerator::probe return success <ptr>
nvAccelerator::probe remove "unmatched" property
nvAccelerator::detach provider NVDAgl parent GFX0
nvAccelerator::attach provider NVDAgl parent GFX0
nvAccelerator: ENTER ::start with provider: NVDAgl
nvAccelerator::start switch to parent: GFX0
NVSPI::start starting!
+ IOAudioDevice[<ptr>]::init(<ptr>)
- IOAudioDevice[<ptr>]::init(<ptr>) returns 1
+ IOAudioDevice[<ptr>]::init(<ptr>)
- IOAudioDevice[<ptr>]::init(<ptr>) returns 1
+ IOAudioDevice[<ptr>]::setDeviceModelName(<ptr>)
- IOAudioDevice[<ptr>]::setDeviceModelName(<ptr>)
+ IOAudioDevice[<ptr>]::free()
+ IOAudioDevice[<ptr>]::deactivateAllAudioEngines()
- IOAudioDevice[<ptr>]::deactivateAllAudioEngines()
  did deactiveateAllAudioEngines ()
  did detachAllAudioPorts ()
  did timerEvents->release ()
  did workLoop->removeEventSource ( timerEventSource )
  did workLoop->removeEventSource ( reserved->idleTimer )  did workLoop->removeEventSource ( commandGate )
  did workLoop->release ()
  did IOFree ()
- IOAudioDevice[<ptr>]::free()
+ IOAudioDevice[<ptr>]::init(<ptr>)
- IOAudioDevice[<ptr>]::init(<ptr>) returns 1
+ IOAudioDevice[<ptr>]::setDeviceModelName(<ptr>)
- IOAudioDevice[<ptr>]::setDeviceModelName(<ptr>)
apfs_keybag_get:1307: failed to get apfs volume keybag, err = 2
apfs_keybag_init:1359: failed to initialize volume keybag, err = 2

[perfaram]

Can confirm (MacBookPro11,3 too – that's a model with dedicated graphics). I'm also using the Akitio Thunder2, but with a GTX1070. Just ask if you need more data @pedroresende

[pedroresende]

@rickardp, @perfaram have you tried to book into the system without the eGPU connected and then after having the login screen, plug it in ? If could you please try it ?

[rickardp]

That results in a black screen when I try to log in. I can SSH into the machine and caps lock works, but nothing on the screen.

The GPU seems to work if I don’t use it for graphics (i.e. as a CUDA device only, no HDMI/DP connected).

[perfaram]

@pedroresende Will try in a couple of days, I'm currently abroad and very busy, sorry :(

[rickardp]

Actually, this may be tied to the NVIDIA drivers rather than the eGPU itself. I managed to reproduce this issue on a clean install without using NVIDIAEGPUSupport, by just installing the NVIDIA web driver, at least once. I think this may be due to some inconsistency between the web drivers and the OS (after an update of one of them).

I only had this problem happen once without the eGPU, so I can't say much more than that. I had to do a full OS reinstall at that point (deleting kexts did not help).