Nouveau - Oct 2009 - [Bug 24295] New: No Boot With Nouveau DRM - C51 misaligned reg 0x0000#### not verified

http://bugs.freedesktop.org/show_bug.cgi?id=24295

           Summary: No Boot With Nouveau DRM - C51 misaligned reg 0x0000####
                    not verified
           Product: xorg
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: highest
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: parwok at gmail.com
         QAContact: xorg-team at lists.x.org
                CC: parwok at gmail.com


Created an attachment (id=30030)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=30030)
My kernel config file

I am using a custom (Zen - http://zen-sources.org, #zen-sources in freenode)
kernel, however I know that I have merged all of the nouveau DRM stuff from the
freedesktop git as a head into my kernel. That said, I have had these same
errors with the same addresses since version .30 and Zen is now on revision
.31-zen2, which means that this has gone on for 3 if not more kernel revisions
(even by mainline vanilla standards). Any chance of fixing this? Previously,
nouveau worked like a dream!

I'm using an NV40 (Geforce Go 6150) on an HP DV9205US laptop, with the
Archlinux distro. I'm sure I have everything setup correctly in .config,
it's
the same as it always has been.

The exact errors go as follows:

C51 misaligned reg 0x00001305 not verified
C51 misaligned reg 0x00001401 not verified
C51 misaligned reg 0x00001405 not verified
C51 misaligned reg 0x00001409 not verified
C51 misaligned reg 0x0000140D not verified


Followed by nouveau detecting display outputs before crapping out and stopping
the boot process. I can't boot kernels unless I don't build
nouveau...and I'm
using the nv driver now.

And...out of curiosity, is there any chance of separating nouveau to only build
the driver for the card that a person needs? Rather than building for all nv40,
50, 60, etc, have the user choose those he/she needs? I'd prefer that, it
would
strip out unnecessary code and speed the build, shrink the kernel, and also
avoid needless bugs.


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--- Comment #1 from Ben Skeggs <skeggsb at gmail.com>  2009-10-04 00:53:20
PST ---
The unverified registers you're seeing have nothing to do with your display
issues.  There's other known issues on C51 chipsets that have yet to be
resolved however.

If you could attach your /var/log/messages from after a failed boot with KMS
enabled, or if you can ssh into the machine or something during a failed boot,
the output of the "dmesg" command.

And yes, there is a possibility of doing that, there's no good reason
whatsoever to do so however.  You'll gain nothing in terms of stability or
runtime speed, all the per-chipset code is separated out and largely
independent of each other with the exception that the code for the
"new"
chipsets utilise the functions for "old" chipsets where the hardware
didn't
change.


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--- Comment #2 from Matt Parnell <parwok at gmail.com>  2009-10-04
01:01:06 PST ---
That said, could you tell me where I can find information on this issue with
the C51?

As for the whole building each driver separately, I was just talking splitting
up only the things that were specific, not the header files or the nouveau
components that are used by all. I'm just talking splitting it up so that I
don't have to build the specific files for each GPU, rather only build for
my
NV40. I already did it myself. It's just to reduce kernel size a teeny tiny
tiny bit, that code I do not need.


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--- Comment #3 from Matt Parnell <parwok at gmail.com>  2009-10-04
01:28:14 PST ---
I have seen where you've patched and added the errors about the misaligned
regs
back in July. I guess I can't really use nouveau until they're ironed
out,
correct? I can't boot with nouveau enabled. I remove it from the kernel and
it
boots fine.

Sad thing is, it worked back on 2.6.29...though the console size wasn't
correct...


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--- Comment #4 from Matt Parnell <parwok at gmail.com>  2009-10-04
02:20:18 PST ---
(In reply to comment #2)
> That said, could you tell me where I can find information on this issue
with
> the C51?
> 
> As for the whole building each driver separately, I was just talking
splitting
> up only the things that were specific, not the header files or the nouveau
> components that are used by all. I'm just talking splitting it up so
that I
> don't have to build the specific files for each GPU, rather only build
for my
> NV40. I already did it myself. It's just to reduce kernel size a teeny
tiny
> tiny bit, that code I do not need.
> 
And yes, of course you're right. It's late and I'm not thinking
clearly.


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Lucas Stach <dev at lynxeye.de> changed:

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

--- Comment #5 from Lucas Stach <dev at lynxeye.de> 2011-02-15 00:58:57
PST ---
Ben asked for logs, but no appropriate reaction from reporter for over one
year. I'm closing this as invalid.

If the problem still persists with recent nouveau code, please reopen and
attach needed logs.

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