From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 106470] [gma500] BUG: unable to handle kernel NULL pointer dereference at 0000000000000081 Date: Thu, 10 May 2018 22:17:56 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0432277847==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 8D13A6E26A for ; Thu, 10 May 2018 22:17:56 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0432277847== Content-Type: multipart/alternative; boundary="15259906760.f0De.23959" Content-Transfer-Encoding: 7bit --15259906760.f0De.23959 Date: Thu, 10 May 2018 22:17:56 +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=3D106470 Bug ID: 106470 Summary: [gma500] BUG: unable to handle kernel NULL pointer dereference at 0000000000000081 Product: DRI Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/other Assignee: dri-devel@lists.freedesktop.org Reporter: dominik@greysector.net Created attachment 139482 --> https://bugs.freedesktop.org/attachment.cgi?id=3D139482&action=3Dedit journalctl -k --no-hostname --no-pager output I'm consistently getting this kernel NULL pointer dereference on a Thecus N= 5550 NAS box (Intel Atom D2550 CPU) on every boot if gma500_gfx module is not blacklisted: Mar 14 13:44:02 kernel: BUG: unable to handle kernel NULL pointer dereferen= ce at 0000000000000081 Mar 14 13:44:02 kernel: IP: drm_fb_helper_is_bound.isra.16+0x5/0xa0 [drm_kms_helper] Mar 14 13:44:03 kernel: PGD 0 P4D 0=20 Mar 14 13:44:03 kernel: Oops: 0000 [#1] SMP NOPTI Mar 14 13:44:03 kernel: Modules linked in: it87 hwmon_vid vfat fat snd_hda_codec_realtek snd_hda_codec_generic gma500_gfx snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd Mar 14 13:44:03 kernel: CPU: 0 PID: 277 Comm: kworker/0:2 Not tainted 4.15.7-300.fc27.x86_64 #1 Mar 14 13:44:03 kernel: Hardware name: Intel Corporation Milstead Platform/Granite Well, BIOS CDV_T30 X64 09/17/2012 Mar 14 13:44:03 kernel: Workqueue: events output_poll_execute [drm_kms_help= er] Mar 14 13:44:03 kernel: RIP: 0010:drm_fb_helper_is_bound.isra.16+0x5/0xa0 [drm_kms_helper] Mar 14 13:44:03 kernel: RSP: 0018:ffffb118005ebe28 EFLAGS: 00010286 Mar 14 13:44:03 kernel: RAX: 0000000000000000 RBX: ffff9da9b656c800 RCX: 000000000000e800 Mar 14 13:44:03 kernel: RDX: ffff9da9b632da00 RSI: 0000000000000031 RDI: ffff9da9b656c800 Mar 14 13:44:03 kernel: RBP: ffff9da9b656c8d0 R08: 00000000000251a0 R09: 0000000000000000 Mar 14 13:44:03 kernel: R10: fffff2ca40f61c00 R11: 0000000000000000 R12: 0000000000000001 Mar 14 13:44:03 kernel: R13: ffff9da9b71e7800 R14: ffff9da9b71e79f8 R15: 0000000000000000 Mar 14 13:44:03 kernel: FS: 0000000000000000(0000) GS:ffff9da9bb400000(000= 0) knlGS:0000000000000000 Mar 14 13:44:03 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 14 13:44:03 kernel: CR2: 0000000000000081 CR3: 000000007b2a0000 CR4: 00000000000006f0 Mar 14 13:44:03 kernel: Call Trace: Mar 14 13:44:03 kernel: drm_fb_helper_hotplug_event.part.29+0x34/0xb0 [drm_kms_helper] Mar 14 13:44:03 kernel: output_poll_execute+0x185/0x1b0 [drm_kms_helper] Mar 14 13:44:03 kernel: process_one_work+0x175/0x390 Mar 14 13:44:03 kernel: worker_thread+0x2e/0x380 Mar 14 13:44:03 kernel: ? process_one_work+0x390/0x390 Mar 14 13:44:03 kernel: kthread+0x113/0x130 Mar 14 13:44:03 kernel: ? kthread_create_worker_on_cpu+0x70/0x70 Mar 14 13:44:03 kernel: ret_from_fork+0x1f/0x40 Mar 14 13:44:03 kernel: Code: 4c d0 f8 8b 45 20 39 c3 7c e6 83 e8 01 4c 89 = ef 31 db 89 45 20 e8 6c b0 ea c4 eb 9f 83 c3 02 eb bf 0f 1f 44 00 00 0f 1f 44 = 00 00 <48> 8b 56 50=20 Mar 14 13:44:03 kernel: RIP: drm_fb_helper_is_bound.isra.16+0x5/0xa0 [drm_kms_helper] RSP: ffffb118005ebe28 Mar 14 13:44:03 kernel: CR2: 0000000000000081 Mar 14 13:44:03 kernel: ---[ end trace 0bc03676f9e43f5d ]--- Full dmesg attached. --=20 You are receiving this mail because: You are the assignee for the bug.= --15259906760.f0De.23959 Date: Thu, 10 May 2018 22:17:56 +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
Bug ID 106470
Summary [gma500] BUG: unable to handle kernel NULL pointer dereferenc= e at 0000000000000081
Product DRI
Version unspecified
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component DRM/other
Assignee dri-devel@lists.freedesktop.org
Reporter dominik@greysector.net 

Created attachment 139482 [detail=
s]
journalctl -k  --no-hostname --no-pager output

I'm consistently getting this kernel NULL pointer dereference on a Thecus N=
5550
NAS box (Intel Atom D2550 CPU) on every boot if gma500_gfx module is not
blacklisted:

Mar 14 13:44:02 kernel: BUG: unable to handle kernel NULL pointer dereferen=
ce
at 0000000000000081
Mar 14 13:44:02 kernel: IP: drm_fb_helper_is_bound.isra.16+0x5/0xa0
[drm_kms_helper]
Mar 14 13:44:03 kernel: PGD 0 P4D 0=20
Mar 14 13:44:03 kernel: Oops: 0000 [#1] SMP NOPTI
Mar 14 13:44:03 kernel: Modules linked in: it87 hwmon_vid vfat fat
snd_hda_codec_realtek snd_hda_codec_generic gma500_gfx snd_hda_codec_hdmi
iTCO_wdt iTCO_vendor_support snd
Mar 14 13:44:03 kernel: CPU: 0 PID: 277 Comm: kworker/0:2 Not tainted
4.15.7-300.fc27.x86_64 #1
Mar 14 13:44:03 kernel: Hardware name: Intel Corporation Milstead
Platform/Granite Well, BIOS CDV_T30 X64 09/17/2012
Mar 14 13:44:03 kernel: Workqueue: events output_poll_execute [drm_kms_help=
er]
Mar 14 13:44:03 kernel: RIP: 0010:drm_fb_helper_is_bound.isra.16+0x5/0xa0
[drm_kms_helper]
Mar 14 13:44:03 kernel: RSP: 0018:ffffb118005ebe28 EFLAGS: 00010286
Mar 14 13:44:03 kernel: RAX: 0000000000000000 RBX: ffff9da9b656c800 RCX:
000000000000e800
Mar 14 13:44:03 kernel: RDX: ffff9da9b632da00 RSI: 0000000000000031 RDI:
ffff9da9b656c800
Mar 14 13:44:03 kernel: RBP: ffff9da9b656c8d0 R08: 00000000000251a0 R09:
0000000000000000
Mar 14 13:44:03 kernel: R10: fffff2ca40f61c00 R11: 0000000000000000 R12:
0000000000000001
Mar 14 13:44:03 kernel: R13: ffff9da9b71e7800 R14: ffff9da9b71e79f8 R15:
0000000000000000
Mar 14 13:44:03 kernel: FS:  0000000000000000(0000) GS:ffff9da9bb400000(000=
0)
knlGS:0000000000000000
Mar 14 13:44:03 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar 14 13:44:03 kernel: CR2: 0000000000000081 CR3: 000000007b2a0000 CR4:
00000000000006f0
Mar 14 13:44:03 kernel: Call Trace:
Mar 14 13:44:03 kernel:  drm_fb_helper_hotplug_event.part.29+0x34/0xb0
[drm_kms_helper]
Mar 14 13:44:03 kernel:  output_poll_execute+0x185/0x1b0 [drm_kms_helper]
Mar 14 13:44:03 kernel:  process_one_work+0x175/0x390
Mar 14 13:44:03 kernel:  worker_thread+0x2e/0x380
Mar 14 13:44:03 kernel:  ? process_one_work+0x390/0x390
Mar 14 13:44:03 kernel:  kthread+0x113/0x130
Mar 14 13:44:03 kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Mar 14 13:44:03 kernel:  ret_from_fork+0x1f/0x40
Mar 14 13:44:03 kernel: Code: 4c d0 f8 8b 45 20 39 c3 7c e6 83 e8 01 4c 89 =
ef
31 db 89 45 20 e8 6c b0 ea c4 eb 9f 83 c3 02 eb bf 0f 1f 44 00 00 0f 1f 44 =
00
00 <48> 8b 56 50=20
Mar 14 13:44:03 kernel: RIP: drm_fb_helper_is_bound.isra.16+0x5/0xa0
[drm_kms_helper] RSP: ffffb118005ebe28
Mar 14 13:44:03 kernel: CR2: 0000000000000081
Mar 14 13:44:03 kernel: ---[ end trace 0bc03676f9e43f5d ]---

Full dmesg attached.

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