* [Bug 107456] WARNING: CPU: 11 PID: 1137 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88 dm_dp_aux_transfer+0xa5/0xc0 [amdgpu]
@ 2018-08-02 16:55 bugzilla-daemon
2018-09-25 11:27 ` bugzilla-daemon
2019-11-20 7:50 ` bugzilla-daemon
0 siblings, 2 replies; 3+ messages in thread
From: bugzilla-daemon @ 2018-08-02 16:55 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107456
Bug ID: 107456
Summary: WARNING: CPU: 11 PID: 1137 at
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu
_dm_mst_types.c:88 dm_dp_aux_transfer+0xa5/0xc0
[amdgpu]
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: marc@dragonfly.plus.com
Created attachment 140936
--> https://bugs.freedesktop.org/attachment.cgi?id=140936&action=edit
dmesg output
I see the following warning during boot with Linux kernel 4.18.0-rc6 & 4.17.10:
root@deepthought:~# dmesg | grep WARN
[ 9.346100] WARNING: CPU: 11 PID: 1137 at
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88
dm_dp_aux_transfer+0xa5/0xc0 [amdgpu]
[ 9.346162] WARNING: CPU: 14 PID: 1139 at
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88
dm_dp_aux_transfer+0xa5/0xc0 [amdgpu]
Hardware is Ryzen 7 2700x, Sapphire Technology Radeon RX 480, IIyama ProLite
XB2380HS connected via DVI.
It looks like "dm_dp_aux_transfer" is used to setup DisplayPort, using "struct
drm_dp_aux_msg — DisplayPort AUX channel transaction". Now, with my hardware I
don't have any monitors connected via DisplayPort. Is that relevant?
I patched in a "printk("msg->size = %d\n", msg->size);" and it displays the
result twice, which is curious.
# dmesg | grep -i "msg->size"
[ 9.469511] msg->size = -5
[ 9.469803] msg->size = -5
Anyway, full "dmesg" attached.
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* [Bug 107456] WARNING: CPU: 11 PID: 1137 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88 dm_dp_aux_transfer+0xa5/0xc0 [amdgpu]
2018-08-02 16:55 [Bug 107456] WARNING: CPU: 11 PID: 1137 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88 dm_dp_aux_transfer+0xa5/0xc0 [amdgpu] bugzilla-daemon
@ 2018-09-25 11:27 ` bugzilla-daemon
2019-11-20 7:50 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2018-09-25 11:27 UTC (permalink / raw)
To: dri-devel
[-- Attachment #1.1: Type: text/plain, Size: 8106 bytes --]
https://bugs.freedesktop.org/show_bug.cgi?id=107456
--- Comment #1 from Marc Thomas <marc@dragonfly.plus.com> ---
I still see this in 4.18.9.
I found that udevd is running "/usr/bin/xcmddc --i2c /dev/i2c-7 --identify"
during boot and it causes these warnings to be displayed.
Latest from 4.18.9, caused by manually running "xcmddc -lv" :
[ 72.162951] WARNING: CPU: 15 PID: 1886 at
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88
dm_dp_aux_transfer+0xa5/0xb0 [amdgpu]
[ 72.162952] Modules linked in: nct6775 hwmon_vid jc42 amd64_edac_mod
edac_mce_amd pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) ipv6
cmac bnep nls_iso8859_1 nls_cp437 vfat fat fuse rc_pinnacle_pctv_hd em28xx_rc
rc_core si2157 si2168 i2c_mux em28xx_dvb dvb_core btusb em28xx btrtl btbcm
tveeprom btintel v4l2_common videodev bluetooth ecdh_generic rfkill amdkfd
amd_iommu_v2 amdgpu snd_hda_codec_realtek chash i2c_dev snd_hda_codec_generic
mxm_wmi wmi_bmof snd_hda_codec_hdmi gpu_sched kvm_amd ttm snd_hda_intel
snd_hda_codec drm_kms_helper igb kvm snd_hda_core drm snd_hwdep ptp snd_pcm
evdev psmouse irqbypass pps_core snd_timer agpgart crct10dif_pclmul
crc32_pclmul fb_sys_fops crc32c_intel dca efi_pstore syscopyarea sysfillrect
k10temp i2c_piix4 i2c_algo_bit serio_raw ghash_clmulni_intel snd
[ 72.162985] sysimgblt efivars soundcore hwmon i2c_core ccp xhci_pci
xhci_hcd wmi pcc_cpufreq button acpi_cpufreq loop dm_snapshot dm_bufio ext4
mbcache jbd2
[ 72.162995] CPU: 15 PID: 1886 Comm: xcmddc Tainted: G W O
4.18.9 #1
[ 72.162996] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./X370 Taichi, BIOS P4.70 04/17/2018
[ 72.163053] RIP: 0010:dm_dp_aux_transfer+0xa5/0xb0 [amdgpu]
[ 72.163053] Code: be 01 00 00 00 48 8b bf 50 04 00 00 5b e9 a3 99 07 00 4c
8b 46 08 8b 0e 31 d2 31 f6 48 8b bf 50 04 00 00 e8 2d 9a 07 00 eb c6 <0f> 0b 48
c7 c0 f9 ff ff ff 5b c3 0f 1f 44 00 00 41 57 41 56 41 55
[ 72.163076] RSP: 0018:ffffbe2380d9bcc8 EFLAGS: 00010286
[ 72.163077] RAX: 0000000000000005 RBX: 0000000000000007 RCX:
0000000000000238
[ 72.163078] RDX: 0000000000000001 RSI: ffffbe2380d9bd48 RDI:
ffff9756f60c48a0
[ 72.163079] RBP: ffff9756f60c48a0 R08: 00000000000240c0 R09:
fffffffffffffffb
[ 72.163080] R10: ffffe748dfe98f40 R11: ffffbe2380d9baa8 R12:
ffffbe2380d9bd48
[ 72.163081] R13: 0000000000000000 R14: 0000000000000000 R15:
ffffffffc1285cd4
[ 72.163083] FS: 00007f2adf318bc0(0000) GS:ffff97571efc0000(0000)
knlGS:0000000000000000
[ 72.163084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 72.163085] CR2: 00007f2ae07d9ff0 CR3: 00000007e9802000 CR4:
00000000003406e0
[ 72.163085] Call Trace:
[ 72.163094] drm_dp_i2c_do_msg+0x90/0x290 [drm_kms_helper]
[ 72.163098] ? __switch_to_asm+0x34/0x70
[ 72.163104] drm_dp_i2c_xfer+0x155/0x250 [drm_kms_helper]
[ 72.163110] __i2c_transfer+0x123/0x410 [i2c_core]
[ 72.163112] ? __switch_to_asm+0x40/0x70
[ 72.163116] i2c_transfer+0x55/0xa0 [i2c_core]
[ 72.163120] i2c_transfer_buffer_flags+0x4c/0x70 [i2c_core]
[ 72.163123] i2cdev_read+0x5f/0xd0 [i2c_dev]
[ 72.163125] __vfs_read+0x36/0x180
[ 72.163128] vfs_read+0x8a/0x140
[ 72.163130] ksys_read+0x4f/0xb0
[ 72.163133] do_syscall_64+0x55/0x100
[ 72.163136] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 72.163137] RIP: 0033:0x7f2ae08605e1
[ 72.163138] Code: fe ff ff 50 48 8d 3d 2e 27 0a 00 e8 49 21 02 00 66 0f 1f
84 00 00 00 00 00 48 8d 05 19 c1 0d 00 8b 00 85 c0 75 13 31 c0 0f 05 <48> 3d 00
f0 ff ff 77 57 c3 66 0f 1f 44 00 00 41 54 49 89 d4 55 48
[ 72.163159] RSP: 002b:00007ffe53d875c8 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
[ 72.163161] RAX: ffffffffffffffda RBX: 000000000000000a RCX:
00007f2ae08605e1
[ 72.163162] RDX: 0000000000000080 RSI: 0000000001db9d20 RDI:
000000000000000a
[ 72.163162] RBP: 00007f2ae0cd1258 R08: 0000000001db9d20 R09:
0000000000000000
[ 72.163163] R10: 0000000000000000 R11: 0000000000000246 R12:
00007ffe53d875d0
[ 72.163164] R13: 00007ffe53d876b0 R14: 00007ffe53d876b8 R15:
0000000001db1603
[ 72.163166] ---[ end trace 5078b35dfa1666e0 ]---
[ 72.413950] WARNING: CPU: 15 PID: 1886 at
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88
dm_dp_aux_transfer+0xa5/0xb0 [amdgpu]
[ 72.413951] Modules linked in: nct6775 hwmon_vid jc42 amd64_edac_mod
edac_mce_amd pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) ipv6
cmac bnep nls_iso8859_1 nls_cp437 vfat fat fuse rc_pinnacle_pctv_hd em28xx_rc
rc_core si2157 si2168 i2c_mux em28xx_dvb dvb_core btusb em28xx btrtl btbcm
tveeprom btintel v4l2_common videodev bluetooth ecdh_generic rfkill amdkfd
amd_iommu_v2 amdgpu snd_hda_codec_realtek chash i2c_dev snd_hda_codec_generic
mxm_wmi wmi_bmof snd_hda_codec_hdmi gpu_sched kvm_amd ttm snd_hda_intel
snd_hda_codec drm_kms_helper igb kvm snd_hda_core drm snd_hwdep ptp snd_pcm
evdev psmouse irqbypass pps_core snd_timer agpgart crct10dif_pclmul
crc32_pclmul fb_sys_fops crc32c_intel dca efi_pstore syscopyarea sysfillrect
k10temp i2c_piix4 i2c_algo_bit serio_raw ghash_clmulni_intel snd
[ 72.413980] sysimgblt efivars soundcore hwmon i2c_core ccp xhci_pci
xhci_hcd wmi pcc_cpufreq button acpi_cpufreq loop dm_snapshot dm_bufio ext4
mbcache jbd2
[ 72.413989] CPU: 15 PID: 1886 Comm: xcmddc Tainted: G W O
4.18.9 #1
[ 72.413989] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./X370 Taichi, BIOS P4.70 04/17/2018
[ 72.414046] RIP: 0010:dm_dp_aux_transfer+0xa5/0xb0 [amdgpu]
[ 72.414046] Code: be 01 00 00 00 48 8b bf 50 04 00 00 5b e9 a3 99 07 00 4c
8b 46 08 8b 0e 31 d2 31 f6 48 8b bf 50 04 00 00 e8 2d 9a 07 00 eb c6 <0f> 0b 48
c7 c0 f9 ff ff ff 5b c3 0f 1f 44 00 00 41 57 41 56 41 55
[ 72.414068] RSP: 0018:ffffbe2380d9bcc8 EFLAGS: 00010286
[ 72.414069] RAX: 0000000000000005 RBX: 0000000000000007 RCX:
0000000000000238
[ 72.414070] RDX: 0000000000000001 RSI: ffffbe2380d9bd48 RDI:
ffff9756f60c78a0
[ 72.414071] RBP: ffff9756f60c78a0 R08: 00000000000240c0 R09:
fffffffffffffffb
[ 72.414072] R10: ffffe748dfe98f40 R11: ffffbe2380d9baa8 R12:
ffffbe2380d9bd48
[ 72.414073] R13: 0000000000000000 R14: 0000000000000000 R15:
ffffffffc1285cd4
[ 72.414074] FS: 00007f2adf318bc0(0000) GS:ffff97571efc0000(0000)
knlGS:0000000000000000
[ 72.414075] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 72.414076] CR2: 00007f2ae07d9ff0 CR3: 00000007e9802000 CR4:
00000000003406e0
[ 72.414076] Call Trace:
[ 72.414084] drm_dp_i2c_do_msg+0x90/0x290 [drm_kms_helper]
[ 72.414086] ? __switch_to_asm+0x34/0x70
[ 72.414093] drm_dp_i2c_xfer+0x155/0x250 [drm_kms_helper]
[ 72.414097] __i2c_transfer+0x123/0x410 [i2c_core]
[ 72.414100] ? __switch_to_asm+0x40/0x70
[ 72.414103] i2c_transfer+0x55/0xa0 [i2c_core]
[ 72.414107] i2c_transfer_buffer_flags+0x4c/0x70 [i2c_core]
[ 72.414109] i2cdev_read+0x5f/0xd0 [i2c_dev]
[ 72.414112] __vfs_read+0x36/0x180
[ 72.414114] vfs_read+0x8a/0x140
[ 72.414116] ksys_read+0x4f/0xb0
[ 72.414118] do_syscall_64+0x55/0x100
[ 72.414121] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 72.414122] RIP: 0033:0x7f2ae08605e1
[ 72.414122] Code: fe ff ff 50 48 8d 3d 2e 27 0a 00 e8 49 21 02 00 66 0f 1f
84 00 00 00 00 00 48 8d 05 19 c1 0d 00 8b 00 85 c0 75 13 31 c0 0f 05 <48> 3d 00
f0 ff ff 77 57 c3 66 0f 1f 44 00 00 41 54 49 89 d4 55 48
[ 72.414144] RSP: 002b:00007ffe53d875c8 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
[ 72.414145] RAX: ffffffffffffffda RBX: 000000000000000c RCX:
00007f2ae08605e1
[ 72.414146] RDX: 0000000000000080 RSI: 0000000001db9e50 RDI:
000000000000000c
[ 72.414147] RBP: 00007f2ae0cd1258 R08: 0000000001db9e50 R09:
0000000000000000
[ 72.414147] R10: 0000000000000000 R11: 0000000000000246 R12:
00007ffe53d875d0
[ 72.414148] R13: 00007ffe53d876b0 R14: 00007ffe53d876b8 R15:
0000000001db1663
[ 72.414150] ---[ end trace 5078b35dfa1666e1 ]---
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* [Bug 107456] WARNING: CPU: 11 PID: 1137 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88 dm_dp_aux_transfer+0xa5/0xc0 [amdgpu]
2018-08-02 16:55 [Bug 107456] WARNING: CPU: 11 PID: 1137 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88 dm_dp_aux_transfer+0xa5/0xc0 [amdgpu] bugzilla-daemon
2018-09-25 11:27 ` bugzilla-daemon
@ 2019-11-20 7:50 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2019-11-20 7:50 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=107456
Martin Peres <martin.peres@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |MOVED
--- Comment #2 from Martin Peres <martin.peres@free.fr> ---
-- 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
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/470.
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