Comment 631 for bug 88746

I have an SB600 chipset and am experiencing the same or similar problem.

I have a USB hard drive attached as well as a USB keyboard and mouse.

When I "exercise" the hard drive via:

for f in `seq 100`; do dd if=/dev/zero of=test bs=64k count=6000; done

One of two things happens:

1. My mouse dies and no amount of unplug/replug works
2. The mouse works but is choppy. The reset messages stop entering the log if I stop my hard drive exerciser command.

Excerpt from dmesg:

usb 1-2.6: new low speed USB device using ehci_hcd and address 4
usb 1-2.6: configuration #1 chosen from 1 choice
input: Logitech Inc. iFeel Mouse as /devices/pci0000:00/0000:00:13.5/usb1/1-2/1-2.6/1-2.6:1.0/input/input6
input,hidraw2: USB HID v1.00 Mouse [Logitech Inc. iFeel Mouse ] on usb-0000:00:13.5-2.6
usb 1-2.6: New USB device found, idVendor=046d, idProduct=c030
usb 1-2.6: New USB device strings: Mfr=4, Product=32, SerialNumber=0
usb 1-2.6: Product: iFeel Mouse
usb 1-2.6: Manufacturer: Logitech Inc.
process `skype' is using obsolete setsockopt SO_BSDCOMPAT
usb 1-3: new high speed USB device using ehci_hcd and address 5
usb 1-3: configuration #1 chosen from 1 choice
usb 1-3: New USB device found, idVendor=05e3, idProduct=0702
usb 1-3: New USB device strings: Mfr=2, Product=3, SerialNumber=0
usb 1-3: Product: USB Mass Storage Device
usb 1-3: Manufacturer: Genesyslogic
Initializing USB Mass Storage driver...
scsi6 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 5
usb-storage: waiting for device to settle before scanning
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb-storage: device scan complete
scsi 6:0:0:0: Direct-Access WDC WD32 00JB-00KFA0 0811 PQ: 0 ANSI: 0
sd 6:0:0:0: [sdb] 625142448 512-byte hardware sectors (320073 MB)
sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
sd 6:0:0:0: [sdb] Assuming drive cache: write through
sd 6:0:0:0: [sdb] 625142448 512-byte hardware sectors (320073 MB)
sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
sd 6:0:0:0: [sdb] Assuming drive cache: write through
 sdb: sdb1
sd 6:0:0:0: [sdb] Attached SCSI disk
sd 6:0:0:0: Attached scsi generic sg2 type 0
kjournald starting. Commit interval 5 seconds
EXT3 FS on sdb1, internal journal
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4
usb 1-2.6: reset low speed USB device using ehci_hcd and address 4

Output of uname -a:
Linux saturn 2.6.25.11-97.fc9.i686 #1 SMP Mon Jul 21 01:31:09 EDT 2008 i686 athlon i386 GNU/Linux