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SubjectRe: ATA failure regression in kernel 4.2
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On 2015/7/25 1:38, Alex Deucher wrote:
> On Thu, Jul 23, 2015 at 2:44 PM, Alex Deucher <alexdeucher@gmail.com> wrote:
>> On Thu, Jul 23, 2015 at 2:35 PM, Tejun Heo <tj@kernel.org> wrote:
>>> Hello,
>>>
>>> On Thu, Jul 23, 2015 at 01:48:24PM -0400, Alex Deucher wrote:
>>>> Something new in kernel 4.2 seems to have broken one of my hard drives
>>>> (ssd) in kernel 4.2. 4.1 and older kernels work fine. Here are the
>>>> relevant logs.
>>>>
>>> ...
>>>> [ 6.547628] ata2.00: qc timeout (cmd 0xec)
>>>> [ 6.547721] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
>>>> [ 7.007213] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
>>>> [ 16.997819] ata2.00: qc timeout (cmd 0xec)
>>>> [ 16.997910] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
>>>> [ 16.997995] ata2: limiting SATA link speed to 3.0 Gbps
>>>> [ 17.457400] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
>>>> [ 47.429257] ata2.00: qc timeout (cmd 0xec)
>>>> [ 47.429349] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
>>>> [ 47.888822] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
>>>
>>> Nothing really rings a bell. Timeouts on IDENTIFY. Could be IRQ
>>> related. Which controller is it (lspci -nn)? Also, can you try to
>>> bisect the issue?
>>
>> 00:11.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH
>> SATA Controller [AHCI mode] [1022:7801] (rev 40)
>> 00:14.1 IDE interface [0101]: Advanced Micro Devices, Inc. [AMD] FCH
>> IDE Controller [1022:780c]
>>
>> I can take a look at bisecting later this week.
>
> You were right about the interrupts. This is an AMD Kaveri APU system.
Hi Alex,
Could you please help to provide more information about the
system so we could identify the issue? Dmesg and /proc/interrupts
from good and bad kernels are welcomed.
Thanks!
Gerry


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