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* [Bug 92891] New: Maschine hangs forever at loading the radeon module
@ 2015-02-07 10:42 bugzilla-daemon
  2015-02-07 10:43 ` [Bug 92891] " bugzilla-daemon
                   ` (16 more replies)
  0 siblings, 17 replies; 18+ messages in thread
From: bugzilla-daemon @ 2015-02-07 10:42 UTC (permalink / raw)
  To: dri-devel

https://bugzilla.kernel.org/show_bug.cgi?id=92891

            Bug ID: 92891
           Summary: Maschine hangs forever at loading the radeon module
           Product: Drivers
           Version: 2.5
    Kernel Version: v3.14.31-rt28 /
                    e1a0d6d8b023c54a5677310e68222e7a58b11f91 /
                    linux-stable-rt
          Hardware: All
                OS: Linux
              Tree: PREEMPT_RT
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: georg@schorsch-tech.de
        Regression: No

Created attachment 166041
  --> https://bugzilla.kernel.org/attachment.cgi?id=166041&action=edit
Kernel config

Hi all,

recently i changed my Gfx card from a evergreen/hd5770 to a pitcairn/r290
(Chipset: "PITCAIRN" (ChipID = 0x6811)).
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Curacao PRO [Radeon R9 270] [1002:6811]

On a second partition a realtime system without any problems. The system ran
for a year with the kernel 3.10.20-rt17 perfect fine. 

Now as i updated my hardware with the new gfx card i started the RT system, i
assumed the problem is the gfx card driver. I updated the kernel to the latest
in 
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git . The
first try was v3.14.31-rt28. But it froze like the old (v3.10.20-rt17) kernel.
After some testing i found out that the old (3.10) and the new (3.14) kernel
start the machine when i disable KMS (radeon.modeset = 0). 

The exact point in the startup procedure is "Waiting for uevents". At this
stage udev get started and loads the modules. 

After testing various kernel versions i picked 3.14.31-rt28 this did start the
machine without the commandline "radeon.modeset=0" and i thought i have a
working commit, but X did not start and i tried to load the module manually. At
this point (modprobe radeon) the machine froze again.

I attached the old evergreen card in the machine and tested with this card what
configuration runs. I got the following results:

Evergreen:
v3.10.20-rt17    Ok
v3.14.20-rt17    Not Ok (freeze)

Pitcairn:
v3.10.20-rt17    Not Ok (freeze)
v3.14.20-rt17    Not Ok (freeze)


So i just filled this bugreport against the newest version i tried.

What info should i add?

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^ permalink raw reply	[flat|nested] 18+ messages in thread
end of thread, other threads:[~2015-02-11 20:11 UTC | newest]

Thread overview: 18+ messages (download: mbox.gz follow: Atom feed
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2015-02-09 15:29 ` bugzilla-daemon
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2015-02-11 18:00 ` bugzilla-daemon
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