Subject: Re: Problems with Kernels 3.17-rc1 and onwards on Acube Sam460 AMCC 460ex board

From: Julian Margetson <[email-masked]>
Date: Mon, 09 Mar 2015 20:53:09 -0400

On 3/9/2015 8:30 PM, Michael Ellerman wrote:
> On Sat, 2015-03-07 at 12:10 -0400, Julian Margetson wrote:
>> With the latest commits
>>
>> [   29.960572] Unable to handle kernel paging request for data at address 0x00000008
>> [   29.974350] Faulting instruction address: 0xc04a4f44
>> [   32.012918] Oops: Kernel access of bad area, sig: 11 [#1]
>> [   32.044900] PREEMPT Canyonlands
>> [   32.061504] Modules linked in: cfg80211 bnep rfcomm bluetooth
>> [   32.081023] CPU: 0 PID: 2087 Comm: Xorg Not tainted 4.0.0-rc2-Sam460ex #1
>> [   32.101802] task: ed6891a0 ti: ed606000 task.ti: ed606000
>> [   32.121175] NIP: c04a4f44 LR: c03e6a4c CTR: c03d7b6c
>> [   32.139995] REGS: ed607c50 TRAP: 0300   Not tainted  (4.0.0-rc2-Sam460ex)
>> [   32.160678] MSR: 00029000 <CE,EE,ME>  CR: 24004442  XER: 00000000
>> [   32.180922] DEAR: 00000008 ESR: 00000000
>> GPR00: c03e6a4c ed607d00 ed6891a0 eeac8000 00000000 0000000f ed607be8 00000000
>> GPR08: 0000f6a3 00000000 eeaae400 ed607cc0 24004422 b7ceeff8 b7d05c14 00000000
>> GPR16: 00000000 ffffffff 00000000 ed607e18 eeaae578 eebe2600 00000001 00004000
>> GPR24: 00004000 c075bd08 fffffff2 00000000 eeac8000 00000001 00000001 ee51a400
>> [   32.285496] NIP [c04a4f44] radeon_audio_enable+0x4/0x18
>> [   32.305509] LR [c03e6a4c] radeon_dvi_detect+0x388/0x3ac
>> [   32.325444] Call Trace:
>> [   32.342325] [ed607d00] [c03e6a4c] radeon_dvi_detect+0x388/0x3ac (unreliable)
>> [   32.364075] [ed607d30] [c0391cc4] drm_helper_probe_single_connector_modes_merge_bits+0xf4/0x434
>> [   32.387631] [ed607d70] [c03adecc] drm_mode_getconnector+0xe4/0x330
>> [   32.408687] [ed607e10] [c03a0bbc] drm_ioctl+0x348/0x464
> You should send that to the Radeon maintainers.
>
> cheers
>
>
>
Thanks.

I have raised a couple of threads on the [email-masked] 
list .