[Bug 82726] New: [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12

[Bug 82726] New: [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=82726

          Priority: medium
            Bug ID: 82726
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: [NV96][NVAC] [Regression] [Bisected] Probe failed with
                    error -12
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: blocker
    Classification: Unclassified
                OS: Linux (All)
          Reporter: pierre.morrow-GANU6spQydw@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

Created attachment 104756
  --> https://bugs.freedesktop.org/attachment.cgi?id=104756&action=edit
Dmesg with probe fail on NVAC and NV96

Linux version: 3.16.0
Nouveau version: commit 263d1d2 from darktama's tree
Cards: 9400M (NVAC)
       9600M GT (NV96)

First bad commit is:

    commit a6924b68dac60d1f991c7ff63bc061aeac85ac3e
    Author: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
    Date:   Mon Aug 11 12:23:23 2014 +1000

        bar: ioremap only the areas that we're actually using

        Signed-off-by: Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Starting with this commit, Nouveau probe fails with -ENOMEM. I did some
testing, and this error isn't returned by nouveau_barobj_ctor, nor by
nouveau_bar_alloc.

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[Bug 82726] [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=82726

--- Comment #1 from Pierre Moreau <pierre.morrow-GANU6spQydw@public.gmane.org> ---
Created attachment 104757
  --> https://bugs.freedesktop.org/attachment.cgi?id=104757&action=edit
Dmesg with probe fail on NVAC and prints of start, offset, and size values

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[Bug 82726] [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=82726

--- Comment #2 from Pierre Moreau <pierre.morrow-GANU6spQydw@public.gmane.org> ---
Created attachment 104758
  --> https://bugs.freedesktop.org/attachment.cgi?id=104758&action=edit
Output of lspci -vv as root

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[Bug 82726] [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=82726

--- Comment #3 from Martin Peres <martin.peres-Iz16wY1oaNPLSKGbIzaifA@public.gmane.org> ---
Yep, same problem here on many nv50 cards (if not all).

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[Bug 82726] [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=82726

Pierre Moreau <pierre.morrow-GANU6spQydw@public.gmane.org> changed:

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

--- Comment #4 from Pierre Moreau <pierre.morrow-GANU6spQydw@public.gmane.org> ---
Seems to be fixed with the new version / some new commits (tested using the
linux-3.18 branch from Nouveau's repo).

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