Bug 42855 - Xorg eats 40% of CPU during drm_ioctl
Summary: Xorg eats 40% of CPU during drm_ioctl
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
Depends on:
Reported: 2011-11-12 09:13 UTC by Stéphane Maniaci
Modified: 2018-06-12 19:06 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

sysprof log (745.58 KB, patch)
2011-11-12 09:13 UTC, Stéphane Maniaci
no flags Details | Splinter Review
Xorg.0.log (85.71 KB, text/plain)
2011-11-14 10:48 UTC, Stéphane Maniaci
no flags Details
dmesg output (69.38 KB, text/plain)
2011-11-14 10:48 UTC, Stéphane Maniaci
no flags Details

Description Stéphane Maniaci 2011-11-12 09:13:40 UTC
Created attachment 53461 [details] [review]
sysprof log

Running on Fedora 16, kernel is 3.1.0-7.fc16.i686, Radeon HD 3870.

04:00.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3870 (prog-if 00 [VGA controller])
        Subsystem: Hightech Information System Ltd. Device 2244
        Flags: bus master, fast devsel, latency 0, IRQ 45
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at febf0000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at e000 [size=256]
        Expansion ROM at febc0000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
        Kernel driver in use: radeon
        Kernel modules: radeon

I'm joining the sysprof log as well. Feel free to update the description/category if needed.
Comment 1 Michel Dänzer 2011-11-14 10:40:12 UTC
Please attach Xorg.0.log and dmesg output.
Comment 2 Stéphane Maniaci 2011-11-14 10:48:03 UTC
Created attachment 53547 [details]
Comment 3 Stéphane Maniaci 2011-11-14 10:48:40 UTC
Created attachment 53548 [details]
dmesg output
Comment 4 Stéphane Maniaci 2011-11-14 10:50:08 UTC
I think I have found the faulty program ; when I play something in Rhythmbox (the GNOME music player), Xorg jumps to 40% constant, if I pause it goes back to normal 7/8%.

Maybe the GtkScale used for playback progress is doing something wrong there.
Comment 5 Adam Jackson 2018-06-12 19:06:15 UTC
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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