Bug 82726

Summary:

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

Product:

xorg

Reporter:

Pierre Moreau <pierre.morrow>

Component:

Driver/nouveau

Assignee:

Nouveau Project <nouveau>

Status:

RESOLVED FIXED

QA Contact:

Xorg Project Team <xorg-team>

Severity:

blocker

Priority:

medium

Version:

git

Hardware:

x86-64 (AMD64)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
Dmesg with probe fail on NVAC and NV96	none
Dmesg with probe fail on NVAC and prints of start, offset, and size values	none
Output of lspci -vv as root	none

Description Pierre Moreau 2014-08-17 11:18:50 UTC

Created attachment 104756 [details]
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@redhat.com>
    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@redhat.com>

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.

Comment 1 Pierre Moreau 2014-08-17 11:20:43 UTC

Created attachment 104757 [details]
Dmesg with probe fail on NVAC and prints of start, offset, and size values

Comment 2 Pierre Moreau 2014-08-17 11:21:25 UTC

Created attachment 104758 [details]
Output of lspci -vv as root

Comment 3 Martin Peres 2014-08-24 16:12:43 UTC

Yep, same problem here on many nv50 cards (if not all).

Comment 4 Pierre Moreau 2014-09-15 23:01:22 UTC

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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