Re: [PATCH 1/3] ata: sata_dwc_460ex: use "dmas" DT property to find dma channel

From: Måns Rullgård
Date: Fri Dec 18 2015 - 07:49:57 EST


Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> writes:

>> > [    5.206125] Unable to handle kernel paging request for data at
>> > address 0x00000000
>> > [    5.228546] Faulting instruction address: 0xc043a2c8
>> > [    5.248577] Vector: 300 (Data Access) at [eddafae0]
>> > [    5.268658]     pc: c043a2c8: sata_dwc_qc_issue+0xb8/0x204
>>
>> Well, that's not good.  Can you translate that address to a line of
>> code?
>
> Besides that, can you enable DYNAMIC_DEBUG in the config and append
> 'dw_dmac_core.dyndbg dw_dmac.dyndbg' to the kernel cmdline?

Enabling debug messages in the sata_dwc driver might also be informative.

--
Måns Rullgård
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