Kernel almost hangs when CONFIG_DRM_RADEON=y

[Pavel Ivanov]

Hi,

I observe very strange behavior dependent on value of
CONFIG_DRM_RADEON parameter. When it's set to m everything works very
good, no problem. When I set it to y I see kernel hang during boot. Or
I should better say it "almost hangs" because during last boot attempt
I accidentally waited a little bit longer and saw that after more than
a minute waiting system continued to boot. Dmesg after "hang" shows
these messages:

[    8.542639] [drm] Loading CEDAR Microcode
[   69.161605] r600_cp: Failed to load firmware "radeon/CEDAR_pfp.bin"
[   69.161670] [drm:evergreen_startup] *ERROR* Failed to load firmware!

While during normal boot

[    9.898870] [drm] Loading CEDAR Microcode
[    9.908425] radeon 0000:05:00.0: WB enabled


Is this a bug?


I'm seeing this on 3.1-rc3. Full dmesgs for both boots are attached.


Pavel
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