Hi Suvayu,


On Mon, 5 Mar 2018 at 16:23 Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote:
Hi,

I have been having random hangs on my new Ryzen workstation (Ryzen 5
2400G + B350 mobo). My hardware is supposedly properly supported on
4.15+ kernels.  But I have been unable to boot with any of the ones in
the repo.

That said, I can boot with older kernels, but the desktop hangs
randomly.  When I say hang, I mean it freezes, and my only recourse is
to reset my computer.  I have tried to login remotely, but then I get
"No route to host" from ssh.  Looking at the journal, I can't figure
out what is causing these hangs.  If someone could have a look, that
would be wonderful.

Logs from the last two hangs:

https://paste.fedoraproject.org/paste/8T~X8BYuVboAJK3Mkal72A
https://paste.fedoraproject.org/paste/qypJAnAKE01GD-OgC6n0SQ

TIA,


Does the screen freeze completely (e.g. the clock doesn't change)? Magic SysRq doesn't work? Are you running Chromium by any chance? 

I've been experiencing similar hangs, first with an AMD Phenom II processor and recently with a Ryzen 5 2400G and a X370 motherboard. This morning I left the computer unattended with Chromium and top open and top showed Chromium taking 34% of the CPU around the crash time. Then I left the computer unattended without running Chromium and ran happily for hours.

I might have a go at running Chromium with debug logs to see if I can see anything unusual. 

Reviewing the journal a few crashes ago I saw some Chromium errors regarding GPU, might be a red herring though.

Frustrating.

Greetings,
Jorge