Okular or any pdf reader

[Hans Petter Selasky]

On 10/25/17 11:55, blubee blubeeme wrote:
> "os.lock_mtx"
> Oct 25 17:52:58 blubee kernel: 1st os.lock_mtx @ nvidia_os.c:841
> Oct 25 17:52:58 blubee kernel: 2nd os.lock_mtx @ nvidia_os.c:841
> Oct 25 17:52:58 blubee kernel: stack backtrace:
> Oct 25 17:52:58 blubee kernel: #0 0xffffffff80ab6f30 at
> witness_debugger+0x70
> Oct 25 17:52:58 blubee kernel: #1 0xffffffff80ab6e23 at
> witness_checkorder+0xe23
> Oct 25 17:52:58 blubee kernel: #2 0xffffffff80a35293 at
> __mtx_lock_flags+0x93
> Oct 25 17:52:58 blubee kernel: #3 0xffffffff82f4097b at
> os_acquire_spinlock+0x1b
> Oct 25 17:52:58 blubee kernel: #4 0xffffffff82c45b15 at _nv012002rm+0x185
> Oct 25 17:52:58 blubee kernel: ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM:
> Argument #4 type mismatch - Found [Buffer], ACPI requires [Package]
> (20170531/nsarguments-205)
> Oct 25 17:52:59 blubee kernel: nvidia-modeset: Allocated GPU:0
> (GPU-54a7b304-c99d-efee-0117-0ce119063cd6) @ PCI:0000:01:00.0
> 
> 

Hi,

Try: CTRL+ALT+F1
Or SSH into this machine.

Then do:

procstat -ak

It will reveal any hangs and deadlocks.

Further I note you're using 12-current with the NVIDIA driver. That 
might not be a supported configuration :-( Especially nowadays some core 
kernel structures are changing, which means NVIDIA needs to recompile 
their binary blob aswell!

--HPS