[Bug 82726] New: [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12 - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 82726] New: [NV96][NVAC] [Regression] [Bisected] Probe failed with error -12
Date: Sun, 17 Aug 2014 11:18:50 +0000	[thread overview]
Message-ID: <bug-82726-8800@http.bugs.freedesktop.org/> (raw)

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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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