smartmontools-5.38 freeze Macbook

[jens-macports@…]

When I install smartmontools, the 'smartd' daemon is automatically registered as a StartupItem. After that, it will periodically - every 30 minutes - query my harddisk:

Oct 14 00:38:05 Schleppmich smartd[50]: Device: IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/SATA@B/AppleMCP79AHCI/ PRT0@0/IOAHCIDevice@0/AppleAHCIDiskDriver/IOAHCIBlockStorageDevice, failed to read SMART Attribute Data

during which my computer freezes completely for about five to ten seconds. Removing smartmontools and killing smartd also stopped the repeated freeze.

Issue: Querying SMART attributes should not freeze the computer (I am running several Linux machines where smartmontools work fine without freeze).

Hardware:

  Modellname:	MacBook Pro
  Modell-Identifizierung:	MacBookPro5,5
  Prozessortyp:	Intel Core 2 Duo
  Prozessorgeschwindigkeit:	2,26 GHz
  Anzahl der Prozessoren:	1
  Gesamtzahl der Kerne:	2
  L2-Cache:	3 MB
  Speicher:	2 GB
  Busgeschwindigkeit:	1,07 GHz
  Boot-ROM-Version:	MBP55.00AC.B03
  SMC-Version (System):	1.47f2

Harddisk:

  Kapazität:	500,11 GB (500.107.862.016 Byte)
  Modell:	WDC WD5000BEVT-22ZAT0                   
  Version:	01.01A01
  Seriennummer:	     WD-WXB0A8948221
  Native Command Queuing:	Ja
  Queue Depth:	32
  Wechselmedien:	Nein
  Absteckbares Laufwerk:	Nein
  BSD-Name:	disk0
  Rotationsrate:	5400
  Partitionstabellentyp:	GPT (GUID-Partitionstabelle)
  S.M.A.R.T.-Status:	Überprüft

Also, 'smartctl' will report SMART as "disabled" when querying the disk, although OS X reports the SMART status as 'OK'.

[tobypeterson]

upstream

[tobypeterson]

Please report this upstream, it's not a bug in MacPorts.