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From: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= <mans@mansr.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Julian Margetson <runaway@candw.ms>, Tejun Heo <tj@kernel.org>,
        linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] ata: sata_dwc_460ex: use "dmas" DT property to find dma channel
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Date: Fri, 18 Dec 2015 12:49:50 +0000
In-Reply-To: <1450441395.30729.203.camel@linux.intel.com> (Andy Shevchenko's
	message of "Fri, 18 Dec 2015 14:23:15 +0200")
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Andy Shevchenko <andriy.shevchenko@linux.intel.com> 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