Browser crash while watching streams with Amdgpu-pro 16.50

English Hardware
1

Kernel 4.4.62-18.6-default here with amdgpu-pro 16.50.
This combination was working very good for me for the last 3 month. No problems at all.

Unfortunattely i´m having problems now since the weekend. For me its not a crash of plasma,
but with chrome, firefox and vivaldi while watching streams (5 to xx min). Never had this before.
Chrome and vivaldi locks the pc, pic freezes and sound still running, but in loop and usb keyboard/
mouse are with no use. Plugging in again changes nothing. The only way to continue is hard reset.
Firefox is different. It crashes the desktop completely throwing me back to login screen, which i
usually don´t see (autologin). But after login in here, i can continue work like nothing has happend.

There is nothing about it in dmesg or journalctl. No entry for any chase.The only thing i noticed is
in /var/log/Xorg.0.log. It´s flooded with hundreds of entries:

AMDGPU(0): amdgpu_dri2_flip_event_handler: Pageflip completion event has impossible msc 97791 < target_msc 97792

This is a well known problem with ubuntu, but it wasn´t present with leap 42.2 since …
Something changed the last 3 weeks, so its now here also.
There is a workaround : https://community.amd.com/thread/205475

I´m testing now, if it helps for the browser problem also.
If someone knows more, please help.

2

To answer my own question, i think, i found the culprit.
The workaround to prevent the flooding of /var/log/Xorg.0.log is still active, but it changed nothing with the browser chrashes.

Switching off baloo was the winner in my case.
Baloo was running for a long time (weeks) on my pc. I didn´t want to switch it off, because i don´t want to lose file indexing and,
even if it was consuming 12% of cpu power all the time, it never gave me a slow system.
After the crashes i took a closer look on baloo:

vos@argh:~> balooctl status
Baloo File Indexer is running
Indexed 28335 / 28334 files
Failed to index 1 files

The status never changed, even after 3-4 days, so i switched baloo off. Since that, there was no more crash or freeze.