[Nouveau] [Bug 101665] lspci blocks forever with a GP107M

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101665

Etienne URBAH <eurbah at free.fr> changed:

           What    |Removed                     |Added
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                 CC|                            |eurbah at free.fr

--- Comment #4 from Etienne URBAH <eurbah at free.fr> ---
I am trying to use 'nouveau' with GP107M [GeForce GTX 1050 Ti Mobile].

With Linux Kernel 4.13.0-16 from Ubuntu 17.10 Artful, 'lspci' systematically
makes immediately 1 CPU freeze.

Therefore, I am testing Linux kernels from
http://kernel.ubuntu.com/~kernel-ppa/mainline

With Linux kernel 4.14.0-rc7, this issue does NOT show up :

$ lspci -nn -v -s 1:0
01:00.0 3D controller [0302]: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti
Mobile] [10de:1c8c] (rev a1)
        Subsystem: Micro-Star International Co., Ltd. [MSI] GP107M [GeForce GTX
1050 Ti Mobile] [1462:11c8]
        Flags: bus master, fast devsel, latency 0, IRQ 134
        Memory at de000000 (32-bit, non-prefetchable) [size=16M]
        Memory at c0000000 (64-bit, prefetchable) [size=256M]
        Memory at d0000000 (64-bit, prefetchable) [size=32M]
        I/O ports at e000 [size=128]
        Expansion ROM at df000000 [disabled] [size=512K]
        Capabilities: <access denied>
        Kernel driver in use: nouveau
        Kernel modules: nvidiafb, nouveau

With Linux kernel 4.14.0-rc8, 'lspci' systematically makes immediately the
whole computer freeze.

With Linux kernel 4.14.0 (released yesterday), 'lspci' systematically fails to
answer, and makes the whole computer freeze after some time.

So, there is probably a regression.

I have also reported this issue at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729736

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