linux-kernel - ATA failure regression in kernel 4.2

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Date:	Thu, 23 Jul 2015 13:48:24 -0400
From:	Alex Deucher <alexdeucher@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: ATA failure regression in kernel 4.2

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.

Kernel 4.1:
[    1.435809] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[    1.435837] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    1.444814] input: Logitech Inc. iFeel Mouse    as
/devices/pci0000:00/0000:00:10.0/usb1/1-1/1-1:1.0/0003:046D:C030.0001/input/input3
[    1.445156] hid-generic 0003:046D:C030.0001: input,hidraw0: USB HID
v1.00 Mouse [Logitech Inc. iFeel Mouse   ] on
usb-0000:00:10.0-1/input0
[    1.447770] ata2.00: ATA-8: KINGSTON SV300S37A120G, 506ABBF0, max UDMA/133
[    1.447773] ata2.00: 234441648 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[    1.457610] ata2.00: configured for UDMA/133
[    1.472799] ata1.00: HPA detected: current 156299375, native 156301488
[    1.472805] ata1.00: ATA-7: ST380815AS, 4.AAB, max UDMA/133
[    1.472807] ata1.00: 156299375 sectors, multi 16: LBA48 NCQ (depth 31/32)
[    1.531057] ata1.00: configured for UDMA/133
[    1.531223] scsi 0:0:0:0: Direct-Access     ATA      ST380815AS
  B    PQ: 0 ANSI: 5
[    1.531438] sd 0:0:0:0: [sda] 156299375 512-byte logical blocks:
(80.0 GB/74.5 GiB)
[    1.531476] sd 0:0:0:0: [sda] Write Protect is off
[    1.531478] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    1.531484] sd 0:0:0:0: Attached scsi generic sg0 type 0
[    1.531491] sd 0:0:0:0: [sda] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[    1.531686] scsi 1:0:0:0: Direct-Access     ATA      KINGSTON
SV300S3 BBF0 PQ: 0 ANSI: 5
[    1.531847] sd 1:0:0:0: [sdb] 234441648 512-byte logical blocks:
(120 GB/111 GiB)
[    1.531879] sd 1:0:0:0: [sdb] Write Protect is off
[    1.531881] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[    1.531891] sd 1:0:0:0: [sdb] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[    1.531904] sd 1:0:0:0: Attached scsi generic sg1 type 0
[    1.534210]  sdb: sdb1
[    1.534466] sd 1:0:0:0: [sdb] Attached SCSI disk
[    1.579337]  sda: sda1
[    1.579628] sd 0:0:0:0: [sda] Attached SCSI disk

Kernel 4.2:
[    1.552246] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    1.552308] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[    1.568731] input: Logitech Inc. iFeel Mouse    as
/devices/pci0000:00/0000:00:10.0/usb1/1-1/1-1:1.0/0003:046D:C030.0001/input/input3
[    1.569086] hid-generic 0003:046D:C030.0001: input,hidraw0: USB HID
v1.00 Mouse [Logitech Inc. iFeel Mouse   ] on
usb-0000:00:10.0-1/input0
[    1.597811] ata1.00: HPA detected: current 156299375, native 156301488
[    1.597900] ata1.00: ATA-7: ST380815AS, 4.AAB, max UDMA/133
[    1.597983] ata1.00: 156299375 sectors, multi 16: LBA48 NCQ (depth 31/32)
[    1.656075] ata1.00: configured for UDMA/133
[    1.656417] scsi 0:0:0:0: Direct-Access     ATA      ST380815AS
  B    PQ: 0 ANSI: 5
[    1.656744] sd 0:0:0:0: [sda] 156299375 512-byte logical blocks:
(80.0 GB/74.5 GiB)
[    1.656801] sd 0:0:0:0: Attached scsi generic sg0 type 0
[    1.657071] sd 0:0:0:0: [sda] Write Protect is off
[    1.657166] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    1.657201] sd 0:0:0:0: [sda] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[    1.704347]  sda: sda1
[    1.704779] sd 0:0:0:0: [sda] Attached SCSI disk
[    2.059840] tsc: Refined TSC clocksource calibration: 3693.283 MHz
[    2.059936] clocksource: tsc: mask: 0xffffffffffffffff max_cycles:
0x6a7918f751d, max_idle_ns: 881590915016 ns
[    3.059155] clocksource: Switched to clocksource tsc
[    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)

Any ideas?

Thanks,

Alex
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