Re: [BUG/REGRESSION] Radeon HDMI casuses oops on Acube Sam460ex amcc 460ex power board

From: Julian Margetson <runaway@candw.ms>
To: Alex Deucher <alexdeucher@gmail.com>
Cc: Maling list - DRI developers <dri-devel@lists.freedesktop.org>
Subject: Re: [BUG/REGRESSION] Radeon HDMI casuses oops on Acube Sam460ex amcc 460ex power board
Date: Mon, 18 May 2015 20:43:12 -0400	[thread overview]
Message-ID: <555A8720.1070407@candw.ms> (raw)
In-Reply-To: <CADnq5_NTp7t2tqQDePG+JkvjPKTLES0sFee1LhyziAJdOhjN+g@mail.gmail.com>

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On 5/18/2015 7:00 PM, Alex Deucher wrote:
> On Mon, May 18, 2015 at 6:41 PM, Julian Margetson <runaway@candw.ms> wrote:
>> On 5/18/2015 4:59 PM, Alex Deucher wrote:
>>
> Snip
>
>
>
>>   * Starting NTP server ntpd       [   28.819002] Unable to handle kernel
>> paging request for data at address 0x00000008
>> [   28.860330] Faulting instruction address: 0xc04a5218
>> [   30.874910] Oops: Kernel access of bad area, sig: 11 [#1]
>> [   30.892488] PREEMPT Canyonlands
>> [   30.907764] Modules linked in:
>> [   30.922944] CPU: 0 PID: 1949 Comm: Xorg Not tainted 4.0.4-Sam460ex #4
>> [   30.941699] task: edd7a920 ti: ee6d0000 task.ti: ee6d0000
>> [   30.959284] NIP: c04a5218 LR: c04a5544 CTR: 00000000
>> [   30.976315] REGS: ee6d1c30 TRAP: 0300   Not tainted  (4.0.4-Sam460ex)
>> [   30.995038] MSR: 00029000 <CE,EE,ME>  CR: 24004242  XER: 00000000
>> [   31.013805] DEAR: 00000008 ESR: 00000000
>> GPR00: c04a5530 ee6d1ce0 edd7a920 ee984000 00000000 00000000 c0ac2c04
>> 61626c69
>> GPR08: 00000000 00000000 00000000 ee6d1ce0 24004244 b7e90afc b84d1ab0
>> b84d0530
>> GPR16: 00000000 ffffffff 6f23c730 ee6d1e18 c03add64 eea00578 00000001
>> 00004000
>> GPR24: 00004000 c0719b98 eeb62200 c08d825c ee4e4000 ee984000 00000000
>> eeaf8f00
>> [   31.111915] NIP [c04a5218] radeon_audio_enable+0x4/0x18
>> [   31.130834] LR [c04a5544] radeon_audio_detect+0x150/0x1bc
>> [   31.150046] Call Trace:
>> [   31.166259] [ee6d1ce0] [c04a5530] radeon_audio_detect+0x13c/0x1bc
>> (unreliable)
>> [   31.187768] [ee6d1d00] [c03e69b4] radeon_dvi_detect+0x3a8/0x3cc
>> [   31.207983] [ee6d1d30] [c0391cf8]
>> drm_helper_probe_single_connector_modes_merge_bits+0xf4/0x448
>> [   31.231287] [ee6d1d70] [c03ade48] drm_mode_getconnector+0xe4/0x334
>> [   31.252222] [ee6d1e10] [c03a0bf4] drm_ioctl+0x348/0x464
>> [   31.272107] [ee6d1ed0] [c00ce2e4] do_vfs_ioctl+0x52c/0x6e8
>> [   31.292084] [ee6d1f20] [c00ce4e0] SyS_ioctl+0x40/0x68
>> [   31.311408] [ee6d1f40] [c000ab1c] ret_from_syscall+0x0/0x3c
>> [   31.331466] --- interrupt: c01 at 0x6fb001dc
>> [   31.331466]     LR = 0x6fb00100
>> [   31.368093] Instruction dump:
>> [   31.385716] 8129012c 806a0018 2f890000 419e0018 81290004 2f890000
>> 419e000c 7d2903a6
>> [   31.408631] 4e800420 38600000 4e800020 81231cd8 <81290008> 2f890000
>> 4d9e0020 7d2903a6
>> [   31.587312] ---[ end trace 2a6dca2844a1913c ]---
>> [   31.591930]
>> [   32.489288] init: bluetooth main process (2051) terminated with status 1
>> [   32.501384] init: bluetooth main process ended, respawning
>> [   33.156098] init: bluetooth main process (2076) terminated with status 1
>> [   33.183330] init: bluetooth main process ended, respawning
>> [   33.859517] init: bluetooth main process (2124) terminated with status 1
>> [   33.880582] init: bluetooth main process ended, respawning
>> [   34.450457] init: bluetooth main process (2177) terminated with status 1
>> [   34.457287] init: bluetooth main process ended, respawning
>>   * Starting Mount filesystems on boot[ OK ]
>>
> Are you sure you booted the right kernel and applied both patches?  I
> don't see any of the debugging output from the patch.
>
> Alex
>
  Restarted from scratch.Newly patched and newly compiled 4.04 kernel tested .
  Same result .

root@julian-VirtualBox:/usr/src/linux-4.0.4# patch -p1 < ../0001-drm-radeon-properly-select-encoder-in-radeon_audio_d.patch
patching file drivers/gpu/drm/radeon/radeon_audio.c
patching file drivers/gpu/drm/radeon/radeon_connectors.c
Hunk #1 succeeded at 1257 (offset -46 lines).
Hunk #2 succeeded at 1335 (offset -46 lines).
root@julian-VirtualBox:/usr/src/linux-4.0.4# patch -p1 < ../debug.diff
patching file drivers/gpu/drm/radeon/radeon_audio.c
root@julian-VirtualBox:/usr/src/linux-4.0.4# patch -p1 < ../Sam460ex-2.patch
(Stripping trailing CRs from patch; use --binary to disable.)
patching file drivers/gpu/drm/radeon/radeon_device.c
Hunk #1 succeeded at 1401 with fuzz 1 (offset 335 lines).
(Stripping trailing CRs from patch; use --binary to disable.)
patching file include/drm/ttm/ttm_bo_api.h
Hunk #1 succeeded at 92 (offset 11 lines).
(Stripping trailing CRs from patch; use --binary to disable.)
patching file arch/powerpc/sysdev/ppc4xx_msi.c
root@julian-VirtualBox:/usr/src/linux-4.0.4#
=======================================================================

[    0.000000] Using Canyonlands machine description
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 4.0.4-Sam460ex (root@julian-VirtualBox) (gcc version 4.8.2 (Ubuntu 4.8.2-16ubuntu3) ) #1 PREEMPT Mon May 18 20:21:14 AST 2015

[   30.102085] Unable to handle kernel paging request for data at address 0x00000008
[   30.148251] Faulting instruction address: 0xc04a5218
[   33.013394] Oops: Kernel access of bad area, sig: 11 [#1]
[   33.019129] PREEMPT Canyonlands
[   33.022469] Modules linked in:
[   33.025713] CPU: 0 PID: 1940 Comm: Xorg Not tainted 4.0.4-Sam460ex #1
[   33.032516] task: edd4a920 ti: ede6a000 task.ti: ede6a000
[   33.038216] NIP: c04a5218 LR: c04a5544 CTR: 00000000
[   33.043460] REGS: ede6bc30 TRAP: 0300   Not tainted  (4.0.4-Sam460ex)
[   33.050264] MSR: 00029000 <CE,EE,ME>  CR: 24004442  XER: 00000000
[   33.056818] DEAR: 00000008 ESR: 00000000
GPR00: c04a5530 ede6bce0 edd4a920 ee9c0000 00000000 00000000 c0ac2c04 61626c69
GPR08: 00000000 00000000 00000000 ede6bce0 24004444 b7f08afc b862fab0 b862e530
GPR16: 00000000 ffffffff 6f23c730 ede6be18 c03add64 ee9a2578 00000001 00004000
GPR24: 00004000 c0719b98 eeb61200 c08d825c ee4e6000 ee9c0000 00000000 ea8f9f00
[   33.091359] NIP [c04a5218] radeon_audio_enable+0x4/0x18
[   33.096883] LR [c04a5544] radeon_audio_detect+0x150/0x1bc
[   33.102582] Call Trace:
[   33.105164] [ede6bce0] [c04a5530] radeon_audio_detect+0x13c/0x1bc (unreliable)
[   33.112838] [ede6bd00] [c03e69b4] radeon_dvi_detect+0x3a8/0x3cc
[   33.119112] [ede6bd30] [c0391cf8] drm_helper_probe_single_connector_modes_merge_bits+0xf4/0x448
[   33.128318] [ede6bd70] [c03ade48] drm_mode_getconnector+0xe4/0x334
[   33.134861] [ede6be10] [c03a0bf4] drm_ioctl+0x348/0x464
[   33.140408] [ede6bed0] [c00ce2e4] do_vfs_ioctl+0x52c/0x6e8
[   33.146214] [ede6bf20] [c00ce4e0] SyS_ioctl+0x40/0x68
[   33.151572] [ede6bf40] [c000ab1c] ret_from_syscall+0x0/0x3c
[   33.157472] --- interrupt: c01 at 0x6fb001dc
[   33.157472]     LR = 0x6fb00100
[   33.165272] Instruction dump:
[   33.168425] 8129012c 806a0018 2f890000 419e0018 81290004 2f890000 419e000c 7d2903a6
[   33.176731] 4e800420 38600000 4e800020 81231cd8 <81290008> 2f890000 4d9e0020 7d2903a6
[   33.340269] ---[ end trace 3e0a38b7fc789e38 ]---
[   33.344890]
[   33.368364] init: bluetooth main process (2019) terminated with status 1
[   33.399413] init: bluetooth main process ended, respawning
  * Starting Mount filesystems on boot

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