Bug 34155 - [drm:radeon_crtc_page_flip] *ERROR* failed to reserve new rbo buffer before flip
Summary: [drm:radeon_crtc_page_flip] *ERROR* failed to reserve new rbo buffer before flip
Status: RESOLVED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Radeon (show other bugs)
Version: DRI git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
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Reported: 2011-02-10 17:53 UTC by Alexandre Demers
Modified: 2013-12-04 23:53 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:

Attachments
Dmesg with "failed to reserve" (22.11 KB, application/x-gzip)
2012-02-02 07:26 UTC, Marco Albanese 		no flags Details
Add return value to error message (579 bytes, patch)
2012-02-02 07:56 UTC, Michel Dänzer 		no flags Details | Splinter Review
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Description Alexandre Demers 2011-02-10 17:53:41 UTC 
I have a 780G chipset (HD3200), using xf86-video-ati 6.14.0 with Xserver 1.9, kernel 2.6.37 and 2.6.38-rc4. Looking in my kern.log, I see regularly this error message:
[drm:radeon_crtc_page_flip] *ERROR* failed to reserve new rbo buffer before flip
Comment 1 Kristoffer Tangfelt 2011-02-14 02:03:28 UTC 
Just a me too on this, also seeing the same on my ArchLinux 64bit installation with an Mobility Radeon X1400 PCIE and DRM Testing with KMS PageFlip enabled. 

ATI Dri version: 7.10.0.git20110206
Kernel version: 2.6.37-rc8-34105-g2b2fd60-dirty

i see those errors appear in my dmesg occasionally, and from what it appears the 3D performance goes down a bit sometimes after they have appeared. noticed by wobbly windows in compiz not being silk smooth after a couple of occurances.
Comment 2 Alexandre Demers 2011-04-14 08:45:50 UTC 
When testing with latest drm and kernel, I can't find the error anymore.
Comment 3 Marco Albanese 2011-12-25 00:59:45 UTC 
I'm experiencing this error on my updated Debian Testing with an ATI R100 (RV200 4C57) and: 
kernel 3.1.0-1-486 
Mesa 7.11.2

I'm using no manual xorg.conf.
Comment 4 Michel Dänzer 2011-12-28 02:02:50 UTC 
(In reply to comment #3)
> I'm experiencing this error on my updated Debian Testing with an ATI R100
> (RV200 4C57) [...]

Are there also 'reserve failed' messages before the messages referenced in the original report?

Do you notice any problem other than the messages?
Comment 5 Marco Albanese 2012-02-02 07:26:00 UTC 
Created attachment 56520 [details]
Dmesg with "failed to reserve"
Comment 6 Marco Albanese 2012-02-02 07:26:13 UTC 
(In reply to comment #4)
> Are there also 'reserve failed' messages before the messages referenced in the
> original report?

No, there aren't. Is the only type of "reserve failed" I got.

> 
> Do you notice any problem other than the messages?

Mhm.. seems not. I've noticed anything related with radeon but, you can check in the attachment of my dmesg.
Comment 7 Michel Dänzer 2012-02-02 07:56:37 UTC 
Created attachment 56529 [details] [review]
Add return value to error message

Please apply this debugging patch and post the value(s) of r when the message occurs again.
Comment 8 Marco Albanese 2012-02-14 01:15:48 UTC 
After last kernel upgrade ( 3.2.0-1-486 with Debian patches ) I don't get the error messages anymore.

Would you like me to check the value of r with your patch using the previous kernel?
Comment 9 Michel Dänzer 2012-02-14 01:33:43 UTC 
(In reply to comment #8)
> After last kernel upgrade ( 3.2.0-1-486 with Debian patches ) I don't get the error messages anymore.

Great, let's assume for now it's been fixed.

> Would you like me to check the value of r with your patch using the previous kernel?

I don't think that's necessary. If you ever see the problem again with the newer kernel, it would be interesting to know the value of r though.

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