Bug 703981

Summary: [PATCH] [drm:drm_debugfs_create_files] *ERROR* Cannot create /sys/kernel/debug/dri/I�@ ���/4
Product: [Fedora] Fedora Reporter: MartinKG <mgansser>
Component: kernelAssignee: Dave Airlie <airlied>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 15CC: eparis, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-12-06 19:00:19 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description MartinKG 2011-05-11 19:39:39 UTC 
Description of problem:

Does not appear to be any real problems, just don't like kernel error messages.
Occurs at boot.
On every boot i would see the following message:
[   18.168121] [drm:drm_debugfs_create_files] *ERROR* Cannot create /sys/kernel/debug/dri/I�@���/4

Version-Release number of selected component (if applicable):

kernel info:
Linux fc15 2.6.38.5-24.fc15.x86_64 #1 SMP Fri May 6 08:00:28 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

Additional info:

grafic info:
02:00.0 VGA compatible controller: nVidia Corporation GT218 [GeForce 210] (rev a2) (prog-if 00 [VGA controller])
	Subsystem: ASUSTeK Computer Inc. Device 8354
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	Memory at d0000000 (64-bit, prefetchable) [size=32M]
	I/O ports at e000 [size=128]
	Expansion ROM at fb000000 [disabled] [size=512K]
	Capabilities: [60] Power Management version 3
	Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [78] Express Endpoint, MSI 00
	Capabilities: [b4] Vendor Specific Information: Len=14 <?>
	Capabilities: [100] Virtual Channel
	Capabilities: [128] Power Budgeting <?>
	Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
	Kernel driver in use: nouveau
	Kernel modules: nouveau, nvidiafb
Comment 1 MartinKG 2011-05-11 19:42:04 UTC 
I saw that same problem alredy discussed.
http://permalink.gmane.org/gmane.comp.video.dri.devel/57345
Comment 2 Dave Jones 2011-09-01 18:49:06 UTC 
this finally got merged for 3.1
I've sent it to -stable, so we should get this in Fedora updates soon.
Comment 3 Steve 2011-09-26 21:08:43 UTC 
I get the following error on fedora 16 and the gdm-login-box does not start:

[drm:drm_debugfs_create_files] *ERROR* Cannot create /sys/kernel/debug/dri/channel\xffffffff/4

Or it is a different bug?
Comment 4 Steve 2011-09-27 20:25:27 UTC 
I made a new bug report: https://bugzilla.redhat.com/show_bug.cgi?id=741770
Comment 5 Dave Jones 2011-12-06 19:00:19 UTC 
should be fixed in 3.1.x (2.6.41) kernels.