Bug#902819: system freeze (hang task) when launching Xorg(1) after a new version of linux-image installed

[Luca Boccassi]

Control: forcemerge 901919 -1

On Sun, 2018-07-01 at 23:31 +0800, M0xkLurk3r wrote:
> Package: nvidia-driver
> Version: 390.48
> Severity: serious
> 
> Dear Maintainer:
> 	I had upgrade my linux-image to a new version (4.16.0-2,
> exactly 4.16.16), then i found the Xorg were failed to start up, the
> screen shows blank and the keyboard stops answer, then i try to grab
> out what's kernel happening in the meantime, and i found kernel gives
> looping oop with "CPU stuck" and "hang task" messages.
> 	Probably the issue were still exists in upstream, i try to
> remove this package and install the offical nVIDIA linux driver
> (version 390.67), and the bug were still exists and perfectly
> reproduce. Then i remove the nvidia driver and turn to uses nouveau,
> this issue disappear(but as well known, the nouveau takes a huge
> performance penalty on graphics that i can't accept)

Please check existing bug reports before opening new ones. This is the
7th duplicate...

Add the following to the kernel command line:

slab_common.usercopy_fallback=y

-- 
Kind regards,
Luca Boccassi
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