Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 17 Feb 2002 17:34:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 17 Feb 2002 17:34:36 -0500 Received: from Hell.WH8.TU-Dresden.De ([141.30.225.3]:8717 "EHLO Hell.WH8.TU-Dresden.De") by vger.kernel.org with ESMTP id ; Sun, 17 Feb 2002 17:34:21 -0500 Message-ID: <3C702FE3.B914C0D@delusion.de> Date: Sun, 17 Feb 2002 23:34:11 +0100 From: "Udo A. Steinberg" Organization: Disorganized X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.5.5-pre1 i686) X-Accept-Language: en, de MIME-Version: 1.0 To: Greg Kroah Hartmann CC: Linux Kernel Subject: khubd blocking in D state with 2.5.5-pre1 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Greg, Since 2.5.5-pre1 I'm using the normal UCHI driver (used the JE one before). The USB system is as follows: /proc/bus/usb/devices T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 11/900 us ( 1%), #Int= 1, #Iso= 0 D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 0.00 S: Product=USB UHCI Root Hub S: SerialNumber=d000 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 4 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=058f ProdID=9254 Rev= 1.00 S: Manufacturer=ALCOR S: Product=Generic USB Hub C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=255ms T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 0.00 S: Product=USB UHCI Root Hub S: SerialNumber=d400 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs= 1 P: Vendor=04b8 ProdID=0110 Rev= 1.10 S: Manufacturer=EPSON S: Product=EPSON Scanner C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=usbscanner E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms My monitor acts as USB hub. When the monitor is switched off and then back on the khubd kernel thread blocks in D state: PID TT USER COMMAND TMOUT F WCHAN WCHAN 12 ? root khubd - 140 down 1075e6 dmesg shows: hub.c: new USB device on bus 1 path /1, assigned address 2 hub.c: new USB device on bus 1 path /2, assigned address 3 hub.c: USB hub found at /2 hub.c: 5 ports detected hub.c: new USB device on bus 1 path /2/1, assigned address 4 usb-uhci.c: interrupt, status 2, frame# 1932 usb.c: USB device not responding, giving up (error=-84) hub.c: new USB device on bus 1 path /2/1, assigned address 5 usb.c: USB device 5 (vend/prod 0x56d/0x2) is not claimed by any active driver. usb.c: USB disconnect on device 3 Is this a known problem? Regards, Udo. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/