linux-kernel - Regression: USB is nfg after suspend/resume(RAM) cycle on Intel chipset

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Date:	Tue, 29 May 2007 12:35:58 -0400
From:	Mark Lord <lkml@....ca>
To:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>, Linus Torvalds <torvalds@...l.org>,
	Andrew Morton <akpm@...l.org>
Subject: Regression: USB is nfg after suspend/resume(RAM) cycle on Intel chipset

I just "upgraded" from 2.6.21.3 to 2.6.22-rc3,
but will be rebooting back into 2.6.21.xx shortly.

Suspend/Resume (RAM) works perfectly on this Dell i9400 dual-core notebook.
Except with 2.6.22-rc3, all USB devices are non-functional on resume.
Most of the time.
Once in five reboots, my mouse worked after the first suspend/resume cycle,
but not thereafter.  'lsusb' also hangs after resume.

I'm attaching a full syslog with USB_DEBUG=y.
I cannot use PM_DEBUG=y due to an unresolved race condition
in the HRTIMER stuff (previously reported/discussed with no attempt at resolution).

This notebook uses very mainstream Intel chips for most stuff:

0000:00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 03)
0000:00:01.0 PCI bridge: Intel Corporation Mobile PCI Express Graphics Port (rev 03)
0000:00:1b.0 0403: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
0000:00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
0000:00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01)
0000:00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 01)
0000:00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 01)
0000:00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 01)
0000:00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 01)
0000:00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 01)
0000:00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
0000:00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
0000:00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage Controllers cc=IDE (rev 01)
0000:00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
0000:01:00.0 VGA compatible controller: ATI Technologies Inc: Unknown device 7145
0000:03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
0000:03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd: Unknown device 0832
0000:03:01.1 0805: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
0000:03:01.2 System peripheral: Ricoh Co Ltd: Unknown device 0843 (rev 01)
0000:03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a)
0000:03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
0000:0c:00.0 Network controller: Intel Corporation: Unknown device 4222 (rev 02)

There are a zillion USB patches in 2.6.22-rc*.
Greg: got any good suggestions on which one to revert first?

Thanks
Mark Lord

View attachment "usb_toa.log" of type "text/x-log" (84061 bytes)