Comment 119 for bug 88746

Same thing here, but according to Andrew Straw advice everything works fine.

Things went better after using 'echo Y > /sys/module/usbcore/parameters/old_scheme_first' but there were some extra usb resets and hdparm -t works extremly slow (showing 28 Mb/s but after some minutes of probing...). After doing 'echo -n -1 > /sys/module/usbcore/parameters/autosuspend' my external HDD works just fine!

My hardware is Acer 4283 based on Intel ich7 chip with Intel host controler.
HDD is 80 Gb toshiba momentus + external usb case.

With default Gutsy install with ehci_hcd loaded it looked like this

[...[
Sep 22 00:57:51 lap kernel: [10759.568000] Buffer I/O error on device sdc1, logical block 98309
Sep 22 00:57:51 lap kernel: [10759.568000] lost page write due to I/O error on sdc1
Sep 22 00:57:52 lap kernel: [10759.820000] usb 1-3: new high speed USB device using ehci_hcd and address 16
Sep 22 00:57:52 lap kernel: [10760.144000] scsi 27:0:0:0: rejecting I/O to dead device
[..]

After removing ehci module hdd just worekd but only at 900kB/s...

Turning off usb autosuspend with ehci_hcd loded coused external HDD works fine.

$ uname -a

Linux lap 2.6.22-11-generic #1 SMP Mon Sep 17 03:45:58 GMT 2007 i686 GNU/Linux

$ lsusb

Bus 001 Device 003: ID 058f:6390 Alcor Micro Corp.
Bus 001 Device 002: ID 046d:0896 Logitech, Inc.
Bus 001 Device 001: ID 0000:0000
Bus 005 Device 003: ID 046d:c517 Logitech, Inc.
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000

$ lspci

00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express PCI Express Root Port (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation G70 [GeForce Go 7600] (rev a1)
04:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
05:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)
06:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev c0)
06:04.0 CardBus bridge: ENE Technology Inc CB-712/4 Cardbus Controller (rev 10)
06:04.1 FLASH memory: ENE Technology Inc ENE PCI Memory Stick Card Reader Controller (rev 01)
06:04.2 Generic system peripheral [0805]: ENE Technology Inc ENE PCI Secure Digital Card Reader Controller (rev 01)
06:04.3 FLASH memory: ENE Technology Inc FLASH memory: ENE Technology Inc: (rev 01)
06:04.4 FLASH memory: ENE Technology Inc SD/MMC Card Reader Controller (rev 01)