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[Bug 297058] Re: Consistent repeating [ata1: link is slow to respond, please be patient ]

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The "bug" is still here in 14.04.

$ uname -a
Linux valhalla 3.13.0-44-generic #73-Ubuntu SMP Tue Dec 16 00:22:43 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

$ grep AHCI /boot/config-3.13.0-44-generic 
CONFIG_SATA_AHCI=m
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_AHCI_IMX is not set
CONFIG_SATA_ACARD_AHCI=m

Yes, a workaround is to set BIOS to use IDE not AHCI but isn't AHCI
better than IDE? Hot-plug, queuing, etc. Specillay if you have a e-SATA
port.

Is it safe to hot-plug in IDE mode?
Is performance better in AHCI mode?
Why it is so problematic to include the AHCI driver compiled into the kernel?

Fortunately, I only reboot this computer from time to time :)

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Title:
  Consistent repeating [ata1: link is slow to respond, please be patient
  ]

Status in linux package in Ubuntu:
  Won't Fix

Bug description:
  I have a Dell Latitude D630.

  With Ubuntu 8.04 and now with 8.10 I consistently receive the
  following error message(s).

  Currently I am running an Hitachi 80GB SATA drive, I have also tried a
  Seagate 80G and another Hitachi 80G hard drive and all seem to exhibit
  the problem.

  Nov 12 12:01:57 itasca kernel: [ 1226.128187] ata1: link is slow to respond, please be patient (ready=0)
  Nov 12 12:02:02 itasca kernel: [ 1231.112167] ata1: device not ready (errno=-16), forcing hardreset
  Nov 12 12:02:02 itasca kernel: [ 1231.112191] ata1: soft resetting link
  Nov 12 12:02:02 itasca kernel: [ 1231.292629] ata1.00: configured for PIO3
  Nov 12 12:02:02 itasca kernel: [ 1231.292662] ata1: EH complete
  Nov 12 12:08:27 itasca kernel: [ 1616.132171] ata1: link is slow to respond, please be patient (ready=0)
  Nov 12 12:08:32 itasca kernel: [ 1621.116175] ata1: device not ready (errno=-16), forcing hardreset
  Nov 12 12:08:32 itasca kernel: [ 1621.116199] ata1: soft resetting link
  Nov 12 12:08:32 itasca kernel: [ 1621.296651] ata1.00: configured for PIO3
  Nov 12 12:08:32 itasca kernel: [ 1621.296684] ata1: EH complete
  Nov 12 12:11:43 itasca kernel: [ 1812.128172] ata1: link is slow to respond, please be patient (ready=0)
  Nov 12 12:11:48 itasca kernel: [ 1817.112176] ata1: device not ready (errno=-16), forcing hardreset
  Nov 12 12:11:48 itasca kernel: [ 1817.112202] ata1: soft resetting link
  Nov 12 12:11:48 itasca kernel: [ 1817.292446] ata1.00: configured for PIO3
  Nov 12 12:11:48 itasca kernel: [ 1817.292462] ata1: EH complete
  Nov 12 12:13:03 itasca kernel: [ 1892.128178] ata1: link is slow to respond, please be patient (ready=0)
  Nov 12 12:13:08 itasca kernel: [ 1897.120164] ata1: device not ready (errno=-16), forcing hardreset
  Nov 12 12:13:08 itasca kernel: [ 1897.120187] ata1: soft resetting link
  Nov 12 12:13:08 itasca kernel: [ 1897.300640] ata1.00: configured for PIO3
  Nov 12 12:13:08 itasca kernel: [ 1897.300671] ata1: EH complete
  Nov 12 12:15:11 itasca kernel: [ 2020.069207] ata1.00: limiting speed to PIO0
  Nov 12 12:15:16 itasca kernel: [ 2025.108176] ata1: link is slow to respond, please be patient (ready=0)
  Nov 12 12:15:21 itasca kernel: [ 2030.092169] ata1: device not ready (errno=-16), forcing hardreset
  Nov 12 12:15:21 itasca kernel: [ 2030.092194] ata1: soft resetting link
  Nov 12 12:15:21 itasca kernel: [ 2030.272660] ata1.00: configured for PIO0
  Nov 12 12:15:21 itasca kernel: [ 2030.272690] ata1: EH complete

  
  The message repeats approximately every 2 minutes.

  I hoped that upgrading to 8.10 would resolve the issue but it has not,
  with the same problem seen when I ran 8.04

  rbuckland@itasca:~$ uname -a
  Linux itasca 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:06 UTC 2008 x86_64 GNU/Linux

  rbuckland@itasca:~$ cat /proc/version
  Linux version 2.6.27-7-generic (buildd@crested) (gcc version 4.3.2 (Ubuntu 4.3.2-1ubuntu11) ) #1 SMP Tue Nov 4 19:33:06 UTC 2008

  
  rbuckland@itasca:~$ lspci
  00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
  00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
  00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
  00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
  00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
  00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
  00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
  00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
  00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
  00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 02)
  00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
  00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
  00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
  00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
  00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2)
  00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 02)
  00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02)
  00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 02)
  00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
  03:01.0 CardBus bridge: O2 Micro, Inc. Cardbus bridge (rev 21)
  03:01.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
  09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5755M Gigabit Ethernet PCI Express (rev 02)
  0c:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)

  
  There does not seem to be any consensus on what causes this issue, or how to resolve it. There is a lot of similarities to other bugs posted. 

  Things which have been tried 
  - change BIOS to AHCI from ATA (for the controller)
  - upgrade the BIOS to the latest from Dell (July 2008)
  - have a CD in the drive

  
  Regards
  Ramon

  ProblemType: Bug
  Architecture: amd64
  DistroRelease: Ubuntu 8.10
  Package: linux-image-2.6.27-7-generic 2.6.27-7.16
  ProcCmdLine: root=LABEL=ithaca ro quiet splash
  ProcEnviron:
   PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/opt/jdk/bin:/opt/apache-maven/bin:/opt/eclipse
   LANG=en_AU.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.27-7.16-generic
  SourcePackage: linux

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