[Bug 77471] New: VESA VGA to radeondri handoff results in boot hang

[Bug 77471] New: VESA VGA to radeondri handoff results in boot hang

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=77471

            Bug ID: 77471
           Summary: VESA VGA to radeondri handoff results in boot hang
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.15-rc8
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: joshua.r.marshall.1991@gmail.com
        Regression: No

Created attachment 138461
  --> https://bugzilla.kernel.org/attachment.cgi?id=138461&action=edit
The kernel config I'm using

Suspecting a kernel memory leak involving radeon stuffs, I pulled down the
kernel source, used "make localyesconfig" to automatically configure the kernel
from my distro's configuration, did the typical procedure to make the kernel
boot as per archlinux instructions and past experiance.  During boot of the new
kernel, a line saying the handoff from VESA VGA was handing off to radeondri
for the framebuffer switchoff prints, CPU goes to 100% (from what I can tell --
fan speeds up and CPU kicks off heat) and does not progress.  Even given a half
hour, this doesn't change.

I'm not sure how to proceed other than filing this report.

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

--- Comment #1 from joshua.r.marshall.1991@gmail.com ---
My distro kernel version is at 3.14.5

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Can you attach the dmesg output from a sucessful load the driver?  What GPU is
this?

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

--- Comment #3 from joshua.r.marshall.1991@gmail.com ---
This is the R7 GPU on the A10-7850K

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

--- Comment #4 from joshua.r.marshall.1991@gmail.com ---
Created attachment 138971
  --> https://bugzilla.kernel.org/attachment.cgi?id=138971&action=edit
New kernel config that does boot

I used localmodconfig for then, then added debug info -- my guess is something
related to having the module built in vs. loaded.  I ran into similar issues
with my intel graphics a while back.

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

--- Comment #5 from joshua.r.marshall.1991@gmail.com ---
Created attachment 138981
  --> https://bugzilla.kernel.org/attachment.cgi?id=138981&action=edit
dmesg output

I found where my kernel is leaking memory (USB audio related) but this hand off
should still not have been an issue.

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

--- Comment #6 from Alex Deucher <alexdeucher@gmail.com> ---
Did you build the necessary firmware into your kernel image when you built the
driver into the kernel?  I don't think this has anything to do with the
handoff.

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

--- Comment #7 from joshua.r.marshall.1991@gmail.com ---
I'm not aware of anything involving firmware for building the modules
separately or part of the main kernel.  I follow the same build procedure for
both.

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

--- Comment #8 from Alex Deucher <alexdeucher@gmail.com> ---
You need to build the firmware into the kernel image if you build the driver
into the kernel otherwise, the driver will not be able to fetch the firmware. 
What you may be seeing is the kernel firmware loading waiting for firmware to
become available, but it never does since it's not actually in the kernel
binary.

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[Bug 77471] VESA VGA to radeondri handoff results in boot hang

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https://bugzilla.kernel.org/show_bug.cgi?id=77471

joshua.r.marshall.1991@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|NEW                         |RESOLVED

--- Comment #9 from joshua.r.marshall.1991@gmail.com ---
That looks to be it.

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