[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=99499

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|DRM/other                   |Driver/nouveau
            Product|DRI                         |xorg
         QA Contact|                            |xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
           Assignee|dri-devel-PD4FTy7X32lNgt0PjOBp93gSJqDPrsil@public.gmane.org |nouveau-PD4FTy7X32lNgt0PjOBp93rCq3LdnpKM@public.gmane.org
                   |.org                        |rg

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[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=99499

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

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

--- Comment #4 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
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https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/321.

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[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99499

Ilia Mirkin <imirkin@alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|DRM/other                   |Driver/nouveau
            Product|DRI                         |xorg
         QA Contact|                            |xorg-team@lists.x.org
           Assignee|dri-devel@lists.freedesktop |nouveau@lists.freedesktop.o
                   |.org                        |rg

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[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99499

--- Comment #3 from Bruno <bonbons@sysophe.eu> ---
In all cases nouveau is built as a module and loaded as follows to enable
debugging output (via netconsole) and make use of proper EDID (edid obtained
from monitor with another system on its HDMI connector as nouveau can't fetch
EDID on this NV1A system)

echo edid/viewsonic.edid > /sys/module/drm_kms_helper/parameters/edid_firmware
echo 0xf > /sys/module/drm/parameters/debug
dmesg -n 8
sync
sleep 1
modprobe nouveau

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[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99499

--- Comment #2 from Bruno <bonbons@sysophe.eu> ---
Created attachment 129103
  --> https://bugs.freedesktop.org/attachment.cgi?id=129103&action=edit
Freezing kernel log (@c85ee6ca79590cd51356bf24fb8936bc352138cf)

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[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99499

--- Comment #1 from Bruno <bonbons@sysophe.eu> ---
Created attachment 129102
  --> https://bugs.freedesktop.org/attachment.cgi?id=129102&action=edit
Successful kernel log (@13de7f462902d1a452d501cdb2d06ef02cabbfff)

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[Bug 99499] [REGRESSION, bisected] KMS hard-freezes around fbcon initialization on NV1A

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99499

            Bug ID: 99499
           Summary: [REGRESSION, bisected] KMS hard-freezes around fbcon
                    initialization on NV1A
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/other
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: bonbons@sysophe.eu

Created attachment 129101
  --> https://bugs.freedesktop.org/attachment.cgi?id=129101&action=edit
Kernel config for regression area

Kernel 4.2 works fine while 4.3 and later fail by freezing hard.

On failure the last kernel message output via netconsole is:
  nouveau 0000:02:00.0: DRM: allocated 1920x1080 fb: 0x4000, bo dd258000

Bisected as follow:
git bisect start 'drivers/gpu/drm/'
# bad: [34cdc49bf8ea385c1b3039be72cf91f98ddf8bbc] sd: Stop disks on reboot
git bisect bad 34cdc49bf8ea385c1b3039be72cf91f98ddf8bbc
# good: [64291f7db5bd8150a74ad2036f1037e6a0428df2] Linux 4.2
git bisect good 64291f7db5bd8150a74ad2036f1037e6a0428df2
# good: [0b2daf09cf3c9893872d68f0ce9a3f4b7e3ff06c] drm/amdgpu: add some common
definitions to amd_shared.h
git bisect good 0b2daf09cf3c9893872d68f0ce9a3f4b7e3ff06c
# good: [a1bfb29a33521efa6b1714589bf68cb4afebacb1] drm/nouveau/device: split
user device implementation out on its own
git bisect good a1bfb29a33521efa6b1714589bf68cb4afebacb1
# bad: [73bf1b7be7aab60d7c651402441dd0b0b4991098] Merge branch 'drm-next-4.3'
of git://people.freedesktop.org/~agd5f/linux into drm-next
git bisect bad 73bf1b7be7aab60d7c651402441dd0b0b4991098
# bad: [ae0a5b2dd2f54584d677701d989732b464b6d8c9] drm/nouveau/mc/gf100-: handle
second interrupt tree
git bisect bad ae0a5b2dd2f54584d677701d989732b464b6d8c9
# good: [0710cc31482ae3711367c42e61580126c50c8ec0] drm/nouveau/dma: convert
user classes to new-style nvkm_object
git bisect good 0710cc31482ae3711367c42e61580126c50c8ec0
# good: [8de65bd0901e2ee7a485a158bfe9e4631cc00644] drm/nouveau/devinit: run
devinit scripts right after preinit
git bisect good 8de65bd0901e2ee7a485a158bfe9e4631cc00644
# good: [e5b31ca63249f03e56529dcd4260b23196ce2c28] drm/nouveau/ce: convert to
new-style nvkm_engine
git bisect good e5b31ca63249f03e56529dcd4260b23196ce2c28
# bad: [97070f23c60869830039b216ff88230f54ef7107] drm/nouveau/pm: convert to
new-style nvkm_engine
git bisect bad 97070f23c60869830039b216ff88230f54ef7107
# good: [70aa8670e5229766f12c4b818a68aa61913df0b6] drm/nouveau/disp: convert to
new-style nvkm_engine
git bisect good 70aa8670e5229766f12c4b818a68aa61913df0b6
# bad: [c85ee6ca79590cd51356bf24fb8936bc352138cf] drm/nouveau/gr: convert to
new-style nvkm_engine
git bisect bad c85ee6ca79590cd51356bf24fb8936bc352138cf
# good: [13de7f462902d1a452d501cdb2d06ef02cabbfff] drm/nouveau/fifo: convert to
new-style nvkm_engine
git bisect good 13de7f462902d1a452d501cdb2d06ef02cabbfff
# first bad commit: [c85ee6ca79590cd51356bf24fb8936bc352138cf] drm/nouveau/gr:
convert to new-style nvkm_engine

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