From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 99013] [regression, bisected] radeonsi: commit 4c8c13b3  "Use
 amdgcn intrinsics for fs interpolation" makes system unusable
Date: Wed, 07 Dec 2016 04:59:06 +0000
Message-ID: <bug-99013-502@http.bugs.freedesktop.org/>
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--14810867450.921667.15533
Date: Wed, 7 Dec 2016 04:59:05 +0000
MIME-Version: 1.0
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Auto-Submitted: auto-generated

https://bugs.freedesktop.org/show_bug.cgi?id=3D99013

            Bug ID: 99013
           Summary: [regression, bisected] radeonsi: commit 4c8c13b3  "Use
                    amdgcn intrinsics for fs interpolation" makes system
                    unusable
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: alexandre.f.demers@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Using an R9 280X
kernel 4.8.12 (radeonsi driver)

LLVM 4.0.0svn r288795
Latest drm from git
latest ddx ati from git

When compiling mesa commit 4c8c13b3, the system is unusable. Reverting to t=
he
previous commit fix the behavior.

My screen displays a fixed background followed by a black flash and a refre=
sh
every few seconds once logged in Gnome 3.

Switching to a terminal shows rings hanging and diving into systemd's journ=
al,
I see a lot of the following:

d=C3=A9c 06 23:23:47 Xander kernel: ------------[ cut here ]------------
d=C3=A9c 06 23:23:47 Xander kernel: WARNING: CPU: 1 PID: 650 at
drivers/gpu/drm/radeon/radeon_objec
d=C3=A9c 06 23:23:47 Xander kernel: Modules linked in: fuse nls_iso8859_1 n=
ls_cp437
vfat fat kvm_am
d=C3=A9c 06 23:23:47 Xander kernel:  ehci_hcd libata usbcore scsi_mod usb_c=
ommon
i8042 serio i915 i
d=C3=A9c 06 23:23:47 Xander kernel: CPU: 1 PID: 650 Comm: Xorg Tainted: G  =
    D W=20=20
    4.8.12-2-A
d=C3=A9c 06 23:23:47 Xander kernel: Hardware name: To be filled by O.E.M. T=
o be
filled by O.E.M./M5
d=C3=A9c 06 23:23:47 Xander kernel:  0000000000000286 00000000e7a1a4fc
ffff880406243b40 ffffffff812
d=C3=A9c 06 23:23:47 Xander kernel:  0000000000000000 0000000000000000
ffff880406243b80 ffffffff810
d=C3=A9c 06 23:23:47 Xander kernel:  0000005400000001 ffff8803e57f5468
ffffffffffffffff ffff8803e57
d=C3=A9c 06 23:23:47 Xander kernel: Call Trace:
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff812fde90>] dump_stack+0x63/0=
x83
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff8107c85b>] __warn+0xcb/0xf0
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff8107c98d>]
warn_slowpath_null+0x1d/0x20
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa00ff09a>]
radeon_ttm_bo_destroy+0xea/0xf0 [radeon]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa006b7fb>]
ttm_bo_release_list+0xcb/0x220 [ttm]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa0073780>] ?
ttm_bo_man_put_node+0x40/0x50 [ttm]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa006c5bf>] ttm_bo_unref+0x1a=
f/0x220
[ttm]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa00ff5d9>] radeon_bo_unref+0=
x39/0x70
[radeon]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa01124f7>]
radeon_gem_object_free+0x57/0x70 [radeon]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa00048a9>]
drm_gem_object_free+0x29/0x70 [drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa000492a>]
drm_gem_object_unreference_unlocked+0x3a/
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa0004a55>]
drm_gem_object_handle_unreference_unlocke
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa0005025>]
drm_gem_object_release_handle+0x55/0xa0 [
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff812fe912>] idr_for_each+0xb2=
/0x110
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa0004fd0>] ?
drm_gem_object_init+0x40/0x40 [drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa0005820>] drm_gem_release+0=
x20/0x30
[drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffffa00047c2>] drm_release+0x2c2=
/0x380
[drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff8120b4ff>] __fput+0x9f/0x1e0
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff8120b67e>] ____fput+0xe/0x10
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff8109a0d0>] task_work_run+0x8=
0/0xa0
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff810806e2>] do_exit+0x2c2/0xb=
50
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff81003016>] ?
___preempt_schedule+0x16/0x18
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff81080feb>] do_group_exit+0x3=
b/0xb0
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff81081074>] SyS_exit_group+0x=
14/0x20
d=C3=A9c 06 23:23:47 Xander kernel:  [<ffffffff815f8032>]
entry_SYSCALL_64_fastpath+0x1a/0xa4
d=C3=A9c 06 23:23:47 Xander kernel: ---[ end trace 44dfe616ce5e8b1c ]---

--=20
You are receiving this mail because:
You are the assignee for the bug.=

--14810867450.921667.15533
Date: Wed, 7 Dec 2016 04:59:05 +0000
MIME-Version: 1.0
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Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://bugs.freedesktop.org/
Auto-Submitted: auto-generated

<html>
    <head>
      <base href=3D"https://bugs.freedesktop.org/">
    </head>
    <body><table border=3D"1" cellspacing=3D"0" cellpadding=3D"8">
        <tr>
          <th>Bug ID</th>
          <td><a class=3D"bz_bug_link=20
          bz_status_NEW "
   title=3D"NEW - [regression, bisected] radeonsi: commit 4c8c13b3 &quot;Us=
e amdgcn intrinsics for fs interpolation&quot; makes system unusable"
   href=3D"https://bugs.freedesktop.org/show_bug.cgi?id=3D99013">99013</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[regression, bisected] radeonsi: commit 4c8c13b3  &quot;Use a=
mdgcn intrinsics for fs interpolation&quot; makes system unusable
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/Gallium/radeonsi
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel&#64;lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>alexandre.f.demers&#64;gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>dri-devel&#64;lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Using an R9 280X
kernel 4.8.12 (radeonsi driver)

LLVM 4.0.0svn r288795
Latest drm from git
latest ddx ati from git

When compiling mesa commit 4c8c13b3, the system is unusable. Reverting to t=
he
previous commit fix the behavior.

My screen displays a fixed background followed by a black flash and a refre=
sh
every few seconds once logged in Gnome 3.

Switching to a terminal shows rings hanging and diving into systemd's journ=
al,
I see a lot of the following:

d=C3=A9c 06 23:23:47 Xander kernel: ------------[ cut here ]------------
d=C3=A9c 06 23:23:47 Xander kernel: WARNING: CPU: 1 PID: 650 at
drivers/gpu/drm/radeon/radeon_objec
d=C3=A9c 06 23:23:47 Xander kernel: Modules linked in: fuse nls_iso8859_1 n=
ls_cp437
vfat fat kvm_am
d=C3=A9c 06 23:23:47 Xander kernel:  ehci_hcd libata usbcore scsi_mod usb_c=
ommon
i8042 serio i915 i
d=C3=A9c 06 23:23:47 Xander kernel: CPU: 1 PID: 650 Comm: Xorg Tainted: G  =
    D W=20=20
    4.8.12-2-A
d=C3=A9c 06 23:23:47 Xander kernel: Hardware name: To be filled by O.E.M. T=
o be
filled by O.E.M./M5
d=C3=A9c 06 23:23:47 Xander kernel:  0000000000000286 00000000e7a1a4fc
ffff880406243b40 ffffffff812
d=C3=A9c 06 23:23:47 Xander kernel:  0000000000000000 0000000000000000
ffff880406243b80 ffffffff810
d=C3=A9c 06 23:23:47 Xander kernel:  0000005400000001 ffff8803e57f5468
ffffffffffffffff ffff8803e57
d=C3=A9c 06 23:23:47 Xander kernel: Call Trace:
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff812fde90&gt;] dump_stack+=
0x63/0x83
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff8107c85b&gt;] __warn+0xcb=
/0xf0
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff8107c98d&gt;]
warn_slowpath_null+0x1d/0x20
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa00ff09a&gt;]
radeon_ttm_bo_destroy+0xea/0xf0 [radeon]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa006b7fb&gt;]
ttm_bo_release_list+0xcb/0x220 [ttm]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa0073780&gt;] ?
ttm_bo_man_put_node+0x40/0x50 [ttm]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa006c5bf&gt;] ttm_bo_unre=
f+0x1af/0x220
[ttm]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa00ff5d9&gt;] radeon_bo_u=
nref+0x39/0x70
[radeon]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa01124f7&gt;]
radeon_gem_object_free+0x57/0x70 [radeon]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa00048a9&gt;]
drm_gem_object_free+0x29/0x70 [drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa000492a&gt;]
drm_gem_object_unreference_unlocked+0x3a/
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa0004a55&gt;]
drm_gem_object_handle_unreference_unlocke
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa0005025&gt;]
drm_gem_object_release_handle+0x55/0xa0 [
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff812fe912&gt;] idr_for_eac=
h+0xb2/0x110
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa0004fd0&gt;] ?
drm_gem_object_init+0x40/0x40 [drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa0005820&gt;] drm_gem_rel=
ease+0x20/0x30
[drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffffa00047c2&gt;] drm_release=
+0x2c2/0x380
[drm]
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff8120b4ff&gt;] __fput+0x9f=
/0x1e0
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff8120b67e&gt;] ____fput+0x=
e/0x10
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff8109a0d0&gt;] task_work_r=
un+0x80/0xa0
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff810806e2&gt;] do_exit+0x2=
c2/0xb50
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff81003016&gt;] ?
___preempt_schedule+0x16/0x18
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff81080feb&gt;] do_group_ex=
it+0x3b/0xb0
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff81081074&gt;] SyS_exit_gr=
oup+0x14/0x20
d=C3=A9c 06 23:23:47 Xander kernel:  [&lt;ffffffff815f8032&gt;]
entry_SYSCALL_64_fastpath+0x1a/0xa4
d=C3=A9c 06 23:23:47 Xander kernel: ---[ end trace 44dfe616ce5e8b1c ]---</p=
re>
        </div>
      </p>


      <hr>
      <span>You are receiving this mail because:</span>

      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>=

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