Bug 7945

Summary:	poweroff regression 2.6.20, unless CONFIG_USB_SUSPEND=n
Product:	Drivers	Reporter:	Len Brown (lenb)
Component:	USB	Assignee:	Greg Kroah-Hartman (greg)
Status:	REJECTED DUPLICATE
Severity:	normal	CC:	acpi-bugzilla
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.20	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	2.6.20 config

Description Len Brown 2007-02-05 19:14:56 UTC

Using linux-2.6.19, "init 0" properly shutdown and powered off the machine.
Using linux-2.6.20, the machine resets and reboots instead of power off.

Distro: OpenSuse 10.2
System: Intel SE7525GP2 Dual Xeon Server - x86_64

in both cases, dmesg ends with this:

Stopping udevd:                                                       done
proc umounted
The system will be halted immediately.
Synchronizing SCSI cache for disk sda:
ACPI: PCI interrupt for device 0000:06:03.0 disabled
ACPI: PCI interrupt for device 0000:05:06.1 disabled
ACPI: PCI interrupt for device 0000:05:06.0 disabled
ACPI: PCI interrupt for device 0000:05:04.1 disabled
ACPI: PCI interrupt for device 0000:05:04.0 disabled
Power down.
acpi_power_off called
 hwsleep-0285 [02] enter_sleep_state     : Entering sleep state [S5]

If I enter BIOS SETUP and disable USB, then 2.6.20 powers off properly.

Leaving USB enabled in BIOS and booting with "nousb" doesn't help.

CONFIG_USB=n fixes poweroff.

Comment 1 Len Brown 2007-02-05 19:33:00 UTC

Created attachment 10308 [details]
2.6.20 config

Disabling CONFIG_USB_SUSPEND is sufficient to prevent this failure.
Attached is the config file that I'm using -- just set
CONFIG_USB_SUSPEND=y to cause poweroff to fail.

The system behaves the same no matter if USB devices
(I use a kbd+mouse over IOGEAR KVM) are attached or not.

Comment 2 Adrian Bunk 2007-02-05 19:37:32 UTC


*** This bug has been marked as a duplicate of 7828 ***