Comment 80 for bug 1652486

I am also see my system completely crash after running Team Fortress 2 for typically 5-20 minutes. In the last three occurrences, I've seen the following:

1. Freeze and system reboot within 10 seconds. I did not see anything in the logs.
2. Successful playing for ~30 minutes without issue.
3. Freeze and sound loop. The screen resets and sound loop changes every 10-20 seconds, which I believe is when the system is trying to reset the GPU. However, it never succeeds, and the system becomes completely non-responsive. The keyboard does not seem to accept input (num lock is frozen, can't switch to console). The only thing I can do is a hard restart. This scenario happens almost every time.

Output from journalctl looks like this:
Nov 24 21:26:42 fedora kernel: radeon 0000:01:00.0: ring 3 stalled for more than 10181msec
Nov 24 21:26:42 fedora kernel: radeon 0000:01:00.0: GPU lockup (current fence id 0x0000000000075bec last fence id 0x0000000000075bf7 on ring 3)

Backtrace starts like this:
Nov 24 21:26:42 fedora /usr/libexec/gdm-x-session[2242]: (EE) Backtrace:
Nov 24 21:26:42 fedora /usr/libexec/gdm-x-session[2242]: (EE) 0: /usr/libexec/Xorg (OsLookupColor+0x139) [0x59f679]
Nov 24 21:26:42 fedora /usr/libexec/gdm-x-session[2242]: (EE) 1: /lib64/libc.so.6 (__restore_rt+0x0) [0x7f4ec08bf7df]
Nov 24 21:26:42 fedora /usr/libexec/gdm-x-session[2242]: (EE) 2: /lib64/libc.so.6 (__memcpy_sse2_unaligned+0x29) [0x7f
4ec0927739]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 3: /usr/lib64/dri/radeonsi_dri.so (__driDriverGetExtensi
ons_virtio_gpu+0x37401a) [0x7f4eb9d88e7a]
...
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 15: /usr/lib64/xorg/modules/libglamoregl.so (glamor_create_gc+0xa16e) [0x7f4ebafcfd3e]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 16: /usr/libexec/Xorg (DamageRegionAppend+0x618) [0x520ea8]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 17: /usr/lib64/xorg/modules/libglamoregl.so (glamor_create_gc+0x11427) [0x7f4ebafde9e7]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 18: /usr/libexec/Xorg (AddTraps+0x56b1) [0x51c1d1]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 19: /usr/libexec/Xorg (SendErrorToClient+0x2df) [0x436e2f]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 20: /usr/libexec/Xorg (remove_fs_handlers+0x463) [0x43ae63]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 21: /lib64/libc.so.6 (__libc_start_main+0xf1) [0x7f4ec08ab731]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 22: /usr/libexec/Xorg (_start+0x29) [0x424d59]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) 23: ? (?+0x29) [0x29]
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE)
Nov 24 21:26:43 fedora /usr/libexec/gdm-x-session[2242]: (EE) Bus error at address 0x7f4eb5af5008

I am running Fedora 24 with the latest updates:
Hardware:
CPU: AMD Athlon II x3 450
GPU: Sapphire / AMD Radeon R7 350 w/ 2GB GDDR5
GPU chipset: Cape Verde

Kernel: 4.8.7-200.fc24.x86_64
Mesa: 12.0.3
LLVM: 3.8.0
DRM: 2.46.0
Driver: radeonsi

I have played a couple other Valve games for several hours with no problems: Portal, Portal 2, and Dota 2.