Hi Brian,

On Mo, 06 Feb 2012, Brian Norris wrote:

Is there any possibility of debugging this regression instead of
effectively reverting it for mainline? Or perhaps can I have better
information regarding the hardware on which this regression is seen?

Sure, Sony VAIO Z11 laptop. I have attached several dmesg output
to emails in this thread, that should give you a good idea what
the hardware is. FOr the ahci:
$ lspci -v -s 00:1f.2
00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 03) (prog-if 01 [AHCI 1.0])
	Subsystem: Sony Corporation Device 9025
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 44
	I/O ports at 7128 [size=8]
	I/O ports at 713c [size=4]
	I/O ports at 7120 [size=8]
	I/O ports at 7138 [size=4]
	I/O ports at 7020 [size=32]
	Memory at daa25000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit-
	Capabilities: [70] Power Management version 3
	Capabilities: [a8] SATA HBA v1.0
	Capabilities: [b0] PCI Advanced Features
	Kernel driver in use: ahci

If you need any other information, please let me know.

Best wishes

Norbert
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Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan                                 TeX Live & Debian Developer
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