Bug 34096 - r300: Cannot get a relocation in radeon_drm_cs_write_reloc.
Summary: r300: Cannot get a relocation in radeon_drm_cs_write_reloc.
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/r300 (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL: http://www.minecraft.net/
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-02-09 10:47 UTC by Sven Arvidsson
Modified: 2012-02-13 06:06 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
more dmesg output (15.87 KB, application/x-gzip)
2011-02-09 10:47 UTC, Sven Arvidsson 		Details
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Description Sven Arvidsson 2011-02-09 10:47:27 UTC 
Created attachment 43168 [details]
more dmesg output

When starting the game Minecraft, I'm getting these messages in the terminal:

radeon: The kernel rejected CS, see dmesg for more information.
r300: Cannot get a relocation in radeon_drm_cs_write_reloc.

dmesg:
[  527.282839] [drm:r100_packet3_load_vbpntr] *ERROR* No reloc for packet3 47
[  527.282841] [drm] ib[13751]=0xC0052F00
[  527.282842] [drm] ib[13752]=0x00000023
[  527.282843] [drm] ib[13753]=0x08010803
[  527.282844] [drm] ib[13754]=0x000EA840
[  527.282845] [drm] ib[13755]=0x000EA858
[  527.282846] [drm] ib[13756]=0x00000802
[  527.282847] [drm] ib[13757]=0x000EA84C
[  527.282849] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !

If needed, I will try and bisect when I have more time.

System environment:
-- system architecture: 32-bit
-- Linux distribution: Debian unstable
-- GPU: RV570
-- Model: Asus EAX1950Pro 256MB
-- Display connector: DVI
-- xf86-video-ati: 6.13.2
-- xserver: 1.9.4
-- mesa: 04c5cc5b8bec1f34f2405b08fd0d9ed6bd70ea61
-- drm: 2.4.23
-- kernel: 2.6.37
Comment 1 Sven Arvidsson 2011-02-17 13:27:30 UTC 
Bisecting leads to this:

c95bc1224a4b20b9470ddcb37b5f78975991073b is the first bad commit
commit c95bc1224a4b20b9470ddcb37b5f78975991073b
Author: Marek Olšák <maraeo@gmail.com>
Date:   Mon Feb 7 02:00:44 2011 +0100

    r300g: use the new vertex buffer manager

:040000 040000 4be08dc19f4fa4e1de6b1b259c6bd481b2fc33e5 28f8c721e519137890b5082fdff66671dbcfacb0 M	src
Comment 2 Marek Olšák 2011-02-18 05:00:59 UTC 
Commit 449c4f3706bb479aaa3921cd8e6edc62e80c6e5b should fix this. Can you test please?
Comment 3 Sven Arvidsson 2011-02-18 06:22:52 UTC 
Confirmed, no more problems!
Comment 4 414N 2012-02-09 06:00:05 UTC 
Having this problem too with a mesa built from a 2 days old git snapshot.
The problem occurs when trying to launch a WebGL demo (http://www.chromeexperiments.com/detail/glass-shader/) using Firefox 10.0 (x86_64).
On the shell the following message appears:

radeon: Cannot get a relocation in radeon_drm_cs_write_reloc.

and then Firefox crashes.
Reading the previous comments I looked at dmesg too and the following happens:
1) When using a 3.1.0 kernel, some lines similar to those already mentioned in the above comments appear;
2) When using a 3.2.5 kernel, nothing appears in dmesg anymore after Firefox crashing.
I tried using the 3.2.5 kernel because I thought that some changes undergone in libdrm would only be available with a newer kernel.
My system specs follow:
CPU: AMD Athlon 64 FX-55
GPU: ATI Technologies Inc R420 JP [Radeon X800XT]
OS: Slackware64 13.37
Mesa git snapshot taken on February, the 7th
libdrm-2.4.31

If more information is needed, please tell me.
Comment 5 Sven Arvidsson 2012-02-09 06:05:40 UTC 
414N : It's probably a better idea to open a new bug for this, it might not be the same problem.
Comment 6 414N 2012-02-13 06:06:29 UTC 
(In reply to comment #5)
> 414N : It's probably a better idea to open a new bug for this, it might not be the same problem.

Thanks for the advice. I just opened bug 45993 for my problem

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