Bug 13040

Summary: DRM radeon
Product: Drivers Reporter: Roger Luethi (rl)
Component: Video(DRI - non Intel)Assignee: drivers_video-dri
Status: CLOSED UNREPRODUCIBLE    
Severity: normal CC: florian, rjw
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.29.1 Subsystem:
Regression: Yes Bisected commit-id:
Bug Depends on:    
Bug Blocks: 11808    
Attachments: boot messages (Vanilla Linux 2.6.29.1)
X Server log

Description Roger Luethi 2009-04-07 20:07:47 UTC 
Created attachment 20864 [details]
boot messages (Vanilla Linux 2.6.29.1)

I've been having all kinds of interesting errors with radeon DRM since 2.6.28 (and I filed one report, bug 12333).

With 2.6.29.1, a new X.org server (1.4.2->1.5.3) and a new ATI driver (6.9.0 -> 6.12.1), DRM is not working and I am getting these infos:

In dmesg:
[  160.613947] =======================================================
[  160.613951] [ INFO: possible circular locking dependency detected ]
[  160.613953] 2.6.29.1-01 #1
[  160.613955] -------------------------------------------------------
[  160.613958] X/8820 is trying to acquire lock:
[  160.613960]  (&dev->struct_mutex){--..}, at: [<f879445a>] drm_mmap+0x25/0x3f [drm]
[  160.613986]
[  160.613986] but task is already holding lock:
[  160.613989]  (&mm->mmap_sem){----}, at: [<c0106619>] sys_mmap2+0x44/0x7b
[  160.613997]
[  160.613997] which lock already depends on the new lock.

And in Xorg.0.log:

(II) RADEON(0): [drm] installed DRM signal handler
(EE) RADEON(0): [pci] Out of memory (-12)
(EE) RADEON(0): [pci] PCI failed to initialize. Disabling the DRI.
(II) RADEON(0): [drm] removed 1 reserved context for kernel
(II) RADEON(0): [drm] unmapping 8192 bytes of SAREA 0xf8684000 at 0xb7be9000
(II) RADEON(0): [drm] Closed DRM master.
Comment 1 Roger Luethi 2009-04-07 20:09:07 UTC 
Created attachment 20865 [details]
X Server log
Comment 2 Rafael J. Wysocki 2009-04-26 11:50:19 UTC 
Notify-Also : DRI <dri-devel@lists.sourceforge.net>
Comment 3 Rafael J. Wysocki 2009-04-27 20:20:15 UTC 
On Monday 27 April 2009, Roger Luethi wrote:
> On Sun, 26 Apr 2009 11:46:29 +0200, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.28 and 2.6.29.
> > 
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.28 and 2.6.29.  Please verify if it still should
> > be listed and let me know (either way).
> > 
> > 
> > Bug-Entry   : http://bugzilla.kernel.org/show_bug.cgi?id=13040
> > Subject             : DRM radeon
> > Submitter   : Roger Luethi <rl@hellgate.ch>
> > Date                : 2009-04-07 20:07 (20 days old)
> 
> It is a regression, but it seems to have been introduced in 2.6.28, not
> 2.6.29.
> 2.6.27.20 works fine.
Comment 4 Florian Mickler 2010-09-02 07:38:55 UTC 
Ping... Can this be closed, or is it still a problem?
Comment 5 Florian Mickler 2010-09-22 17:45:06 UTC 
Timeout. 

Since radeon now uses kernel based mode setting this is unlikely to persist.