2.6.20.git regression: 'PCI: add the sysfs driver name to allmodules' causes hard hang on boot

[Mike Galbraith]

Greetings,

Per $subject, git.yesterday hangs hard on boot here. A git bisect
fingered the commit below, which I verified via git bisect reset; git
revert -n 725522b5453dd680412f2b6463a988e4fd148757, after which box
boots fine.  (well, I hope I verified... i'm git-ignorant)

commit 725522b5453dd680412f2b6463a988e4fd148757
Author: Greg Kroah-Hartman <gregkh@xxxxxxx>
Date:   Mon Jan 15 11:50:02 2007 -0800

    PCI: add the sysfs driver name to all modules

    This adds the module name to all PCI drivers, if they are built into the
    kernel or not.  It will show up in /sys/modules/MODULE_NAME/drivers/

    It also fixes up the IDE core, which was calling __pci_register_driver()
    directly.

    Cc: Kay Sievers <kay.sievers@xxxxxxx>
    Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

:040000 040000 a97900b3284ece0d5f1a3eed372f98c5cb4b10d3 4d1f3045dc379f0eb7064fd05dd311625c090ef3 M      drivers
:040000 040000 434c6fa20bd7f9acadb2c6d4a8dfe19a05fe8ea2 9f8ef888fe4050d8cab7333955a6eafb0d2f0fba M      include


Kernel messages:
[    0.781850] ipmi message handler version 39.1
[    0.786438] ipmi device interface
[    0.789973] IPMI System Interface driver.
<hangs here on bad kernel>
[    0.805356] ipmi_si: Unable to find any System Interface(s)
[    0.811224] IPMI Watchdog: driver initialized

gzipped up config attached.

	-Mike

Attachment: config.gz
Description: GNU Zip compressed data