Most recent kernel where this bug did not occur:
Distribution: suse 9.3
Hardware Environment:athlon64 / x86-64 VIA chipset OHCI 
Software Environment:
Problem Description:

Steps to reproduce:

I had a serialconnection open to a pl2303 ttyUSB0 device. Then the USB cable
was unplugged. The serial connection was closed as expected, but afterwards
lsusb hangs. Plugging in the cable again also doesn't make the device
available again.

Backtrace of lsusb:
lsusb         D ffff810065046b30     0 22153  26510               22152 (NOTLB)
ffff8100522fdde8 0000000000000082 0000000000000d19 ffff810065046b30 
       ffffffff803f3780 ffff81000d0fbae8 ffff8100721152a8 6db6db6db6db6db7 
       0000000000000001 ffff81002c4a1030 
Call Trace:<ffffffff8033598e>{__down+222}
<ffffffff80130280>{default_wake_function+0}
       <ffffffff80336ca3>{__down_failed+53}
<ffffffff883d1183>{:usbcore:.text.lock.usb+15}
       <ffffffff883db4c8>{:usbcore:usbdev_read+72} <ffffffff80178a44>{filp_open+68}
       <ffffffff801797c5>{vfs_read+229} <ffffffff80179fa3>{sys_read+83}
       <ffffffff8010e91a>{system_call+126}