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Re: ATA failure regression in kernel 4.2

From Tejun Heo <tj@kernel.org>
Newsgroups linux.kernel
Subject Re: ATA failure regression in kernel 4.2
Date 2015-07-23 20:40 +0200
Message-ID <pPtzr-6sr-13@gated-at.bofh.it> (permalink)
References <pPsN4-5io-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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?

Thanks.

-- 
tejun
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Thread

ATA failure regression in kernel 4.2 Alex Deucher <alexdeucher@gmail.com> - 2015-07-23 19:50 +0200
  Re: ATA failure regression in kernel 4.2 Tejun Heo <tj@kernel.org> - 2015-07-23 20:40 +0200
    Re: ATA failure regression in kernel 4.2 Alex Deucher <alexdeucher@gmail.com> - 2015-07-23 20:50 +0200
      Re: ATA failure regression in kernel 4.2 Jiang Liu <jiang.liu@linux.intel.com> - 2015-07-27 05:10 +0200

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