2.6.32.2 SATA link detect failed, 2.6.32.1 works fine

[fengxiangjun <fengxiangjun@neusoft.com>]

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Hi,

after upgrading to 2.6.32.2,
with the attached config, 
kernel booting always(just tried 10+ times) failed at:

ata1.00: SATA link down (SStatus 0 SControl 301)
...
VFS: Cannot open root device ...

ver_linux info:

/usr/src/linux/scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux darkstar 2.6.32.1 #11 SMP Mon Dec 21 18:47:01 CST 2009 x86_64 
Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz GenuineIntel GNU/Linux

Gnu C                  4.4.2
Gnu make               3.81
binutils               2.18.50.0.9.20080822
util-linux             2.14.2
mount                  support
module-init-tools      found
quota-tools            3.17.
Linux C Library        2.9
Dynamic linker (ldd)   2.9
Procps                 3.2.7
Kbd                    1.15
oprofile               0.9.4
Sh-utils               7.4
Modules Loaded

lspci info:

$ /sbin/lspci
00:00.0 Host bridge: Intel Corporation 82Q963/Q965 Memory Controller Hub 
(rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 
Integrated Graphics Controller (rev 02)
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)
00:1d.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.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI 
Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface 
Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801H (ICH8 Family) 4 port SATA 
IDE Controller (rev 02)
00:1f.5 IDE interface: Intel Corporation 82801H (ICH8 Family) 2 port SATA 
IDE Controller (rev 02)
3f:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5755 
Gigabit Ethernet PCI Express (rev 02)

dmesg(2.6.31.1) and kernel config attached,
let me know if you need any other information.

Thanks.

PS. When using 2.6.32-rc8 and 2.6.32，the same problem happened 
twice, but i can't reproduce that. With 2.6.32.2, it always happens.
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