Bug 7898 - Dmesg error controller can't do DEVSLP on Minnow Max
Summary: Dmesg error controller can't do DEVSLP on Minnow Max
Status: VERIFIED NOTABUG
Alias: None
Product: BSPs
Classification: Build System, Metadata & Runtime
Component: bsps-intel-corei7-64 (show other bugs)
Version: 1.8
Hardware: MinnowBoard Max x86_64
: Low normal
Target Milestone: 1.9
Assignee: California Sullivan
QA Contact: Cristina Agurida
URL:
Whiteboard:
Depends on:
Blocks:
 
Reported: 2015-06-17 10:50 UTC by Cristina Agurida
Modified: 2015-07-14 11:33 UTC (History)
2 users (show)

See Also:
OS type for building Yocto: ---
Type of Regression: New (Never tested)
Verified:
Documentation change: No (bug/feature does not impact docs)

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Description Cristina Agurida 2015-06-17 10:50:35 UTC 
STATUS: FAILED
BUILD: 1.8: 28e8017ab8ba4f4d9e3fe5a5346bf31b3334bbbb
ENVIRONMENT: intel-corei7-64 on Minnowboard Max
STEPS TO REPRODUCE: 
  
 Parse dmesg log and all log files in /var/log for keywords like: "error" , "failed" , "cannot", "can't" etc.
Filter out the known and invalid errors or errors that appear in certain situations and need to be ignored.



EXPECTED OUTCOME: 
  
 No errors or fails should be present in logs

Actual outcome:

This error appears in dmesg log:

Central error: [    0.691650] ahci 0000:00:13.0: controller can't do DEVSLP, turning off
***********************
[    0.682131] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[    0.683728] acpi device:30: registered as cooling_device2
[    0.683924] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3
[    0.684002] [drm] Initialized i915 1.6.0 20141121 for 0000:00:02.0 on minor 0
[    0.688719] brd: module loaded
[    0.690859] loop: module loaded
[    0.691061] Uniform Multi-Platform E-IDE driver
[    0.691164] ide-gd driver 1.18
[    0.691189] ide-cd driver 5.00
[    0.691348] ahci 0000:00:13.0: version 3.0
[    0.691650] ahci 0000:00:13.0: controller can't do DEVSLP, turning off
[    0.702498] ahci 0000:00:13.0: AHCI 0001.0300 32 slots 2 ports 3 Gbps 0x1 impl SATA mode
[    0.702510] ahci 0000:00:13.0: flags: 64bit ncq pm led clo pio slum part deso 
[    0.705832] scsi host0: ahci
[    0.706509] scsi host1: ahci
[    0.706699] ata1: SATA max UDMA/133 abar m2048@0x9082f000 port 0x9082f100 irq 265
[    0.706706] ata2: DUMMY
[    0.706893] pcnet32: pcnet32.c:v1.35 21.Apr.2008 tsbogend@alpha.franken.de
[    0.706982] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
[    0.706987] e100: Copyright(c) 1999-2006 Intel Corporation
[    0.707034] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
Comment 1 California Sullivan 2015-07-06 19:52:00 UTC 
Hello,

The kernel disables DEVSLP on Baytrail because there is a bug in the Baytrail hardware. This message can be whitelisted.

See commit 0cf4a7d6cf23715276fcd0f1cd1cabc6a9b46942 in the linux-stable repository.

---
Cal
Comment 2 Cristina Agurida 2015-07-14 11:33:29 UTC 
Marking as verified as per last comment.