kern/97000: [kernel] [patch] bogus "All threads purged from ugen0.1" message

Andrew Muhametshin andrew at
Fri Mar 30 02:30:06 UTC 2007

The following reply was made to PR kern/97000; it has been noted by GNATS.

From: Andrew Muhametshin <andrew at>
To: bug-followup at, jh at
Subject: Re: kern/97000: [kernel] [patch] bogus "All threads purged from ugen0.1"
Date: Fri, 30 Mar 2007 06:00:48 +0400

 I have a similar problem... Very often, scanning terminates in lag of 
 the program "sane" and a conclusion of messages:
 ugen0: at uhub4 port 1 (addr 2) disconnected
 All threads purged from ugen0.2
 All threads purged from ugen0.1
 All threads purged from ugen0
 ugen0: detached
 Whether will solve this problem a patch offered by *john hood*? Or in 
 last versions FreeBSD(version 6.2-RELEASE and above) it have already 
 uname -ra
 FreeBSD host01 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #1: Sat Jan 13 
 05:24:24 MSK 2007
 $ dmesg...
 ehci0: <VIA VT6202 USB 2.0 controller> mem 0xdf040000-0xdf0400ff irq 5 
 at device 16.2 on pci0
 ehci0: [GIANT-LOCKED]
 usb4: EHCI version 0.95
 usb4: companion controllers, 2 ports each: usb2 usb3
 usb4: <VIA VT6202 USB 2.0 controller> on ehci0
 usb4: USB revision 2.0
 uhub4: VIA EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
 uhub4: 4 ports with 4 removable, self powered
 ugen0: EPSON EPSON Scanner, rev 2.00/1.00, addr 2

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