Comment # 3
on bug 84920
from Alexander
I observe the same issue on virtual machine with VGA passthrough. The virtual
guest runs only Kodi media center session with autologin from lightdm display
manager.
The issue is easily reproducible when I do fast forward (FF).
Here's sample from dmesg:
[ 195.123895] perf interrupt took too long (10006 > 10000), lowering
kernel.perf_event_max_sample_rate to 12500
[ 457.994431] perf interrupt took too long (20020 > 20000), lowering
kernel.perf_event_max_sample_rate to 6250
[45310.627571] [drm:radeon_uvd_cs_msg] *ERROR* No more free UVD handles!
[45310.627575] [drm:radeon_cs_ib_chunk] *ERROR* Invalid command stream !
... and lots of such messages ...
[45323.651977] [drm:radeon_uvd_cs_msg] *ERROR* No more free UVD handles!
[45323.651979] [drm:radeon_cs_ib_chunk] *ERROR* Invalid command stream !
You see, that before doing FF there were some messages and long uptime without
any message. When I stop doing FF the messages stop.
The system is Debian GNU/Linux 8.0 Jesie
$ uname -a
Linux infmc 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt4-3 (2015-02-03) i686
GNU/Linux
$ lspci -vnn | grep -A 10 VGA
03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] [1002:6779] (prog-if
00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device [1043:3017]
Physical Slot: 0
Flags: bus master, fast devsel, latency 0, IRQ 43
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at fe800000 (64-bit, non-prefetchable) [size=128K]
I/O ports at c000 [size=256]
Expansion ROM at fe820000 [disabled] [size=64K]
Capabilities: <access denied>
Kernel driver in use: radeon
The graphics card is ASUS AMD R5 230 1G.
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