From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 105173] [MCP79][Regression] Unhandled NULL pointer dereference in nvkm_object_unmap since kernel 4.15 Date: Thu, 01 Mar 2018 08:20:02 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2092058489==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============2092058489== Content-Type: multipart/alternative; boundary="15198924020.552ad5fF1.15768" Content-Transfer-Encoding: 7bit --15198924020.552ad5fF1.15768 Date: Thu, 1 Mar 2018 08:20:02 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D105173 --- Comment #11 from Nick Lee --- (In reply to Pierre Moreau from comment #10) > What exactly is reproducible? The artefacts I would assume, but which err= or > exactly? The NULL pointer dereference, or the =E2=80=9Ctrapped read at 00= 80000000 on > channel 1 [0fbb0000 DRM] engine 00 [PGRAPH] client 03 [DISPATCH] subclient > 04 [M2M_IN] reason 00000006 [NULL_DMAOBJ]=E2=80=9D one? > I did manage to reproduce the second one with Wayland, but still no luck > with the first one. This error: [ 372.954548] nouveau 0000:03:00.0: imem: OOM: 00100000 00001000 -28 [ 372.954702] nouveau 0000:03:00.0: gr: TRAP_M2MF 00000002 [IN] [ 372.954712] nouveau 0000:03:00.0: gr: TRAP_M2MF 00320951 c0001fc0 000000= 00 04000430 [ 372.954722] nouveau 0000:03:00.0: gr: 00200000 [] ch 1 [000fbb0000 DRM] = subc 4 class 5039 mthd 0100 data 00000000 [ 372.954752] nouveau 0000:03:00.0: fb: trapped read at 00c0000000 on chan= nel 1 [0fbb0000 DRM] engine 00 [PGRAPH] client 03 [DISPATCH] subclient 04 [M2M_= IN] reason 00000000 [PT_NOT_PRESENT] kernel-4.15.6-300.vanilla.knurd.1.fc27.x86_64 mesa-17.3.6 Screenshot: https://s9.postimg.org/hajle1skf/Screenshot_from_2018-03-01_10-12-28.png > (In reply to Nick Lee from comment #8) > > Fedora-Workstation-Live-x86_64-Rawhide-20180220.n.0.iso > > wayland session > >=20 > > [ 1035.437016] nouveau 0000:03:00.0: swiotlb buffer is full (sz: 2097152 >=20 > I=E2=80=99ll try the iso. Did you get this error with supertuxkart as wel= l, or > simply by launching the session? >=20 by launching the session --=20 You are receiving this mail because: You are the assignee for the bug.= --15198924020.552ad5fF1.15768 Date: Thu, 1 Mar 2018 08:20:02 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comme= nt # 11 on bug 10517= 3 from Nick Lee 
(In reply to Pierre Moreau from comment #10)

> What exactly is reproducible? The artefacts I wo=
uld assume, but which error
> exactly? The NULL pointer dereference, or the =E2=80=9Ctrapped read at=
 0080000000 on
> channel 1 [0fbb0000 DRM] engine 00 [PGRAPH] client 03 [DISPATCH] subcl=
ient
> 04 [M2M_IN] reason 00000006 [NULL_DMAOBJ]=E2=80=9D one?
> I did manage to reproduce the second one with Wayland, but still no lu=
ck
> with the first one.

This error:
[  372.954548] nouveau 0000:03:00.0: imem: OOM: 00100000 00001000 -28
[  372.954702] nouveau 0000:03:00.0: gr: TRAP_M2MF 00000002 [IN]
[  372.954712] nouveau 0000:03:00.0: gr: TRAP_M2MF 00320951 c0001fc0 000000=
00
04000430
[  372.954722] nouveau 0000:03:00.0: gr: 00200000 [] ch 1 [000fbb0000 DRM] =
subc
4 class 5039 mthd 0100 data 00000000
[  372.954752] nouveau 0000:03:00.0: fb: trapped read at 00c0000000 on chan=
nel
1 [0fbb0000 DRM] engine 00 [PGRAPH] client 03 [DISPATCH] subclient 04 [M2M_=
IN]
reason 00000000 [PT_NOT_PRESENT]

kernel-4.15.6-300.vanilla.knurd.1.fc27.x86_64
mesa-17.3.6

Screenshot:
https://s9.postimg.org/hajle1skf/Screenshot_from_2018-03-01_10-12=
-28.png

> (In reply to Nick Lee from comment #8)
> > Fedora-Workstation-Live-x86_64-Rawhide-20180220.n.0.iso
> > wayland session
> >=20
> > [ 1035.437016] nouveau 0000:03:00.0: swiotlb buffer is full (sz: =
2097152
>=20
> I=E2=80=99ll try the iso. Did you get this error with supertuxkart as =
well, or
> simply by launching the session?
> 

by launching the session

You are receiving this mail because:
  • You are the assignee for the bug.
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