Created attachment 532438 [details]
dmesg

Description of problem:

System extremely slow to boot with grub2. I'm talking go and make a coffee slow. Takes at least 3 or four mins to get pass the loading inital RAM disk.

Notice in dmesg after boot lot of this:
 
         72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 
[   37.575900]         05 c6 bd f8 
[   37.575904] sd 0:0:0:0: [sda]  Add. Sense: No additional sense information
[   37.575909] sd 0:0:0:0: [sda] CDB: Read(10): 28 00 05 c6 bd c0 00 00 08 00
[   37.575917] end_request: I/O error, dev sda, sector 96910784
[   37.575923] sd 0:0:0:0: [sda]  Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[   37.575927] sd 0:0:0:0: [sda]  Sense Key : Aborted Command [current] [descriptor]
[   37.575931] Descriptor sense data with sense descriptors (in hex):
[   37.575934]         72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 
[   37.575943]         05 c6 bd f8 

Note this is a SSD disk with the system is installed on and hence the boot disk. This disk is connect to the Intel Corporation 82801JI (ICH10 Family) SATA AHCI Controller on the motherboard.

Note there are no issue with this disk itself, SMART data show all good. If I go back to Fedora 15 I have no slow boot issues.

Once the system is booted the sda's performance seems fine and normal.

Version-Release number of selected component (if applicable):

Yum update have been run and the system is completely up to date.

How reproducible:

Every time.

Steps to Reproduce:
1.
2.
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Actual results:

Very slow boot.

Expected results:

Normal operation.

Additional info: