https://bugs.freedesktop.org/show_bug.cgi?id=77784
Priority: medium Bug ID: 77784 Assignee: dri-devel@lists.freedesktop.org Summary: Certain mono based games hang the system with radeonsi (probably llvm backend) Severity: normal Classification: Unclassified OS: Linux (All) Reporter: j.suarez.agapito@gmail.com Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Drivers/Gallium/radeonsi Product: Mesa
My system specs are as follows (taken from Steam system information):
Processor Information: Vendor: AuthenticAMD CPU Family: 0x15 CPU Model: 0x1 CPU Stepping: 0x2 CPU Type: 0x0 Speed: 3600 Mhz 8 logical processors 8 physical processors HyperThreading: Unsupported FCMOV: Supported SSE2: Supported SSE3: Supported SSSE3: Supported SSE4a: Supported SSE41: Supported SSE42: Supported
Network Information: Network Speed:
Operating System Version: Ubuntu 14.04 LTS (64 bit) Kernel Name: Linux Kernel Version: 3.15.0-031500rc2-generic X Server Vendor: The X.Org Foundation X Server Release: 11501000 X Window Manager: KWin Steam Runtime Version: steam-runtime-release_2014-02-05
Video Card: Driver: X.Org Gallium 0.4 on AMD PITCAIRN
Driver Version: 3.0 Mesa 10.2.0-devel (git-7cb3bbf trusty-oibaf-ppa) OpenGL Version: 3.0 Desktop Color Depth: 24 bits per pixel Monitor Refresh Rate: 60 Hz VendorID: 0x1002 DeviceID: 0x6818 Number of Monitors: 1 Number of Logical Video Cards: 1 Primary Display Resolution: 1920 x 1080 Desktop Resolution: 1920 x 1080 Primary Display Size: 18,78" x 10,55" (21,54" diag) 47,7cm x 26,8cm (54,7cm diag) Primary VRAM Not Detected
Sound card: Audio device: Realtek ALC889
Memory: RAM: 15865 Mb
Miscellaneous: UI Language: English LANG: es_ES.UTF-8 Microphone: Not set Total Hard Disk Space Available: 469324 Mb Largest Free Hard Disk Block: 35328 Mb
Installed software:
Recent Failure Reports:
GPU is a Radeon HD 7870, using radeonsi git 2014.04.21 (7cb3bbf) from oibaf ppa recompiled with llvm 3.5 (svn 206757).
Even after bug #60929 was fixed I have been experiencing system hangs with LITTLE Racers Street, which is based on mono. The hang usually happens randomly after a few races have been played and results in the image in the screen getting its colors corrupted (just like when in old times you changed the color depth in windows 95 -I'll try to get a picture with a camera because the system is hard locked-) and a loop in the sound. So just a hard lock.
I did not know what was to blame and was waiting for a game update in order to see if things got solved.
However, I have recently bought Foosball Street Edition (also based on mono). The game launches and shows the menus OK, but hangs the system at about 5-10 secs after the kick-off of any match. The hang is not like LITTLE Racers Street, but rather like a series of GPU hangs and recoveries (screen goes black and then shows the game a few times in a row) which end up in the system totally frozen. During that time there is no sound playing. So probably not a lock as hard as in LITTLE Racers Street.
I'm not sure how to debug this but I am quite convinced that this could be another case of mono + llvm backend incompatibility. The reason for that belief is that (i) I have tested this game on this same PC with catalyst and the game does not hang and everything works wonderfully, (ii) I obtained the same good results in a laptop with a Radeon HD 4570 (r600g, not llvm) (mesa git from around 10 April); and (iii) both games are based on mono.
As stated above, I'm not sure how to debug this because when the system hangs, it does not allow VT switching to check the logs or the dmesg output. I would be happy to help with any further information needed.
Regards