Re: Hangs at boot with PS/2 to USB converter

["xerces8" <xerces8@butn.net>]

Hi!

I have more details now :

If USB-PS/2 converter is inserted at boot, the command grep hangs in
/etc/hotplug/usb.rc :

    # If boot time synthesis works, we can assume that pci.rc will have
    # already loaded the drivers needed by the system HCDs.
    # FIXME: should test -x pci.rc ?
    if [ "$SYNTHESIZE" = false ] || [ ! -f /proc/bus/usb/devices ] \
        || ! grep -q -i bus /proc/bus/usb/devices; then

also subsequent "cat /proc/bus/usb/devices" hangs :
(ps auxw output)
root      3711  0.0  0.0  1832  516 pts/1    D+   19:18   0:00 grep -q -i bus /proc/bus/usb/devices

D = uninterruptible sleep (usually IO)

Also catting other files under /proc/bus/usb hang in D state.

If I then remove the adapter nothing happens ( the processes are still
hanging, new cat commands again hang )

Any suggestions ?

Regards,
David


-----Original Message-----
From: "xerces8" <xerces8@butn.net>
To: debian-testing@lists.debian.org
Date: Thu, 10 Feb 2005 10:12:42 +0100
Subject: Hangs at boot with PS/2 to USB converter

> Hi!
> 
> I have a PS2-USB gadget (has two PS/2 sockets where you connect a PS/2
> kdb and/or PS/2 mouse and then plug then thing into an USB port on the PC).
> 
> If I connect it when debian is running, it works fine ( both mouse and kbd ).
> 
> But if I connect it before boot ( like having it connected all the time ),
> then sarge hangs during startup.
> It hangs in the startup sricpt which detects hardware and loads modules.
> I'll try to get the exact messages tomorrow.
> 
> I can interrupt the hanging process with alt-SysRq-K (SAK) and then it continues to boot
> and most things work ( except my USB mouse ).
> 
> Note that I also have an PS/2 keyboard on the real PS/2 port and an USB mouse.
> (I need all of them)
> 
> Version : Debian GNU/Linux testing "Sarge" - Official Snapshot i386 Binary-1 (20050122)
> Kernel : kernel-image-2.6.8-2-k7-smp_2.6.8-12_i386.deb
> 
> Here is what /proc/bus/input/devices say about the gadget :
> 
> I: Bus=0003 Vendor=0a81 Product=0205 Version=0010
> N: Name="CHESEN PS2 to USB Converter"
> P: Phys=usb-0000:00:10.0-2/input0
> H: Handlers=kbd event3 
> B: EV=12000b 
> B: KEY=10000 7 ff800000 7ff febeffdf ffefffff ffffffff fffffffe 
> B: ABS=100 0 
> B: LED=1f07 
> 
> I: Bus=0003 Vendor=0a81 Product=0205 Version=0010
> N: Name="CHESEN PS2 to USB Converter"
> P: Phys=usb-0000:00:10.0-2/input1
> H: Handlers=kbd event4 mouse1 ts1 
> B: EV=10000f 
> B: KEY=1f0000 3ff0000 20000 3878 d801d101 1e0000 0 0 0 
> B: REL=103 
> B: ABS=100 0 
> 
> 
> 
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