https://bugs.freedesktop.org/show_bug.cgi?id=96271
--- Comment #8 from Stephen Liang hi+freedesktop@stephenliang.pw --- Created attachment 124225 --> https://bugs.freedesktop.org/attachment.cgi?id=124225&action=edit Kernel log, dmesg, gallium debug logs during GPU hang and system crash
No good but I've got quite a bit of information! I tried with this command:
R600_DEBUG=noce,nohyperz GALLIUM_DDEBUG="800 noflush" steam steam://rungameid/440
The GPU recovered and I was able to alt-tab to gnome terminal and grab the dmesg. See "dmesg_after_alt_tab.txt".
I then continued to play the game and it hung again. This time, the entire screen froze with only the mouse being able to move. Luckily, this time I was able to drop to TTY4, and grab a dmesg. See "dmesg_after_hard_hang.txt", there is certainly a lot more output here with quite a bit of call traces which I've never seen before.
Now, I decided to restart X since the mouse still moved so I wondered if this is an X issue. So I ran "sudo service gdm restart" and it crashed the system with a calltrace displayed on screen on text mode. On restart, I checked the kernel logs and I can see a lot of call traces, so it seems whatever happened ended up tainting the kernel requiring the system to need a hard reset. See "kernel_log_during_gdm_restart.txt".
Finally, since I ran this with GALLIUM_DDEBUG="800 noflush", I was able to collect another gallium debug that goes along with this. I really hope this information helps capture the state of the system at the time of crash. Please let me know if you want me to try anything else.