The following reply was made to PR kern/26681; it has been noted by GNATS.

From: J Chapman Flack <flack@cs.purdue.edu>
To: gnats-bugs@NetBSD.org
Cc: j+nbsd@2004.salmi.ch
Subject: Re: kern/26681
Date: Tue, 15 Feb 2005 09:52:20 -0500

 I'm pretty sure I'm seeing the same problem in the 2.0 release (or maybe
 the same problem and a related one).  Writing to a Lexar flash drive hung
 the writing process in D state; pulling out the drive caused a general hang.
 
 I also had repeatable failures reading a large scan from an Epson scanner
 (xsane posted "I/O error" alert box and would hang if I tried to repeat scan;
 scanner would not return home unless I disconnect/reconnect USB cable).
 With ehci disabled in userconf, scanning is rock solid.
 
 My adapter is the Acer Labs Combo (6xUSB+2x1394).
 
 NetBSD 2.0 (lundestad) #3: Thu Feb 10 11:55:11 UTC 2005
 	root@:/usr/src/sys/arch/i386/compile/lundestad
 total memory = 767 MB
 avail memory = 742 MB
 BIOS32 rev. 0 found at 0xf0000
 mainbus0 (root)
 mainbus0: Intel MP Specification (Version 1.4) (COMPAQ   PROLIANT    )
 cpu0 at mainbus0: apid 1 (boot processor)
 cpu0: Intel Pentium III (686-class), 598.20 MHz, id 0x673
 ...
 cpu1 at mainbus0: apid 0 (application processor)
 cpu1: starting
 cpu1: Intel Pentium III (686-class), 598.18 MHz, id 0x673
 ...
 ohci0 at pci1 dev 8 function 0: Acer Labs M5237 USB Host Controller (rev. 0x03)
 ohci0: interrupting at ioapic0 pin 20 (irq 15)
 ohci0: OHCI version 1.0, legacy support
 usb0 at ohci0: USB revision 1.0
 uhub0 at usb0
 uhub0: Acer Labs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub0: 2 ports with 2 removable, self powered
 ohci1 at pci1 dev 8 function 1: Acer Labs M5237 USB Host Controller (rev. 0x03)
 ohci1: interrupting at ioapic0 pin 20 (irq 15)
 ohci1: OHCI version 1.0, legacy support
 usb1 at ohci1: USB revision 1.0
 uhub1 at usb1
 uhub1: Acer Labs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub1: 2 ports with 2 removable, self powered
 ohci2 at pci1 dev 8 function 2: Acer Labs M5237 USB Host Controller (rev. 0x03)
 ohci2: interrupting at ioapic0 pin 20 (irq 15)
 ohci2: OHCI version 1.0, legacy support
 usb2 at ohci2: USB revision 1.0
 uhub2 at usb2
 uhub2: Acer Labs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub2: 2 ports with 2 removable, self powered
 ehci0 at pci1 dev 8 function 3: Acer Labs product 0x5239 (rev. 0x01)
 ehci0: interrupting at ioapic0 pin 21 (irq 10)
 ehci0: EHCI version 1.0
 ehci0: companion controllers, 2 ports each: ohci0 ohci1 ohci2
 usb3 at ehci0: USB revision 2.0
 uhub3 at usb3
 uhub3: Acer Labs EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
 uhub3: 6 ports with 6 removable, self powered
 fwohci0 at pci1 dev 8 function 4: Acer Labs product 0x5253 (rev. 0x00)
 fwohci0: interrupting at ioapic0 pin 21 (irq 10)
 fwohci0: OHCI 1.1, 00:90:e6:25:00:00:08:c0, 400Mb/s, 2048 max_rec, 4 ir_ctx, 8 it_ctx
 ...
 umass0 at uhub3 port 2 configuration 1 interface 0
 umass0: LEXAR MEDIA JUMPDRIVE2, rev 2.00/1.25, addr 3
 umass0: using SCSI over Bulk-Only
 scsibus2 at umass0: 2 targets, 1 lun per target
 sd0 at scsibus2 target 0 lun 0: <Generic, STORAGE DEVICE, 1.25> disk removable
 sd0: fabricating a geometry
 sd0: 125 MB, 125 cyl, 64 head, 32 sec, 512 bytes/sect x 256000 sectors
 ...
 uscanner0 at uhub3 port 6
 uscanner0: EPSON EPSON Scanner, rev 2.00/1.00, addr 2