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[Bug 1471119] Re: Samsung 840 Pro 512GB not recognized


These errors seem to indicate that either the drive or sata controller
are defective:

[   13.649232] ata1: link is slow to respond, please be patient (ready=0)
[   17.790930] ata1: COMRESET failed (errno=-16)
[   23.651669] ata1: link is slow to respond, please be patient (ready=0)
[   27.793364] ata1: COMRESET failed (errno=-16)
[   33.654107] ata1: link is slow to respond, please be patient (ready=0)
[   62.813890] ata1: COMRESET failed (errno=-16)
[   62.813914] ata1: limiting SATA link speed to 3.0 Gbps
[   67.835096] ata1: COMRESET failed (errno=-16)
[   67.835121] ata1: reset failed, giving up
[   68.842534] ata1: exception Emask 0x10 SAct 0x0 SErr 0xc00000 action 0x1 t4
[   68.842561] ata1: irq_stat 0x0c000000, interface fatal error
[   68.842580] ata1: SError: { Handshk LinkSeq }

Are you sure it works when you upgrade?  Are you booting with any
special kernel command line arguments?  cat /proc/cmdline please.

** Package changed: ubuntu => linux (Ubuntu)

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  Samsung 840 Pro 512GB not recognized

Status in linux package in Ubuntu:

Bug description:
  In order to get newer systemd version I installed 15.10.

  However the partition manager (using the server image) did not
  recognize the Samsung 840 Pro SSD. I was forced to go back and install
  15.04, then upgrade to 15.10 and that worked without issues.

  Changing to a different tty and doing checking /dev/disk/by-id also
  shows no sign of the Sasmungs 840 Pro.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1
  Uname: Linux 3.19.0-22-generic x86_64
  ApportVersion: 2.17.3-0ubuntu4
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Fri Jul  3 08:47:27 2015
  InstallCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-22-generic root=UUID=78220e78-a48e-4add-8268-b84e73d2b2cb ro rootflags=subvol=@ splash quiet pcie_aspm=force nomdmonddf nomdmonisw vt.handoff=7
   PATH=(custom, no user)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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