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FabulaTech Forum Remote Desktop Solutions USB for Remote Desktop (Moderators: Tim_GaliullinFT, Andrew, Sergey_Jarovski) Segmentation fault in ftusbrdpd Linux workstation

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Topic: Segmentation fault in ftusbrdpd Linux workstation (Read 4892 times)

otaci
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Segmentation fault in ftusbrdpd Linux workstation
on: Jun 4^th, 2009, 11:59am

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We are having segmentation fault in ftusbrdpd Linux workstation.

Scenario description:

* USB for Remote Desktop Server runs on Windows Xp Professional SP3;
* USB for Remote Desktop Workstation runs on Linux Fedora 10 kernel 2.6.27.21-170.2.56.fc10.i686;
* USB smart card reader installed on Linux workstation (Bus 003 Device 002: ID 0802:2800 Mako Technologies, LLC);

The segfault happens immediatelly smart card reader device plug in.

We tried other USB devices (webcam, flatbed scanner and pendrives) in the same scenario and they worked like a charm.

An excerpt from "ftusbrdp -d" output:

Version: 2.5.0

This software uses and requires the libusb 1.0 library.
The components of libusb are distributed under the GNU General
Public License and the GNU LGPL. You can obtain updated versions
of libusb and the source code from the libusb homepage at
http://libusb.sourceforge.net.

Trial: 57 days left.

ftusbnet started.
Scanning for new devices...
New device plugged in: [04f2:b008]
[ devcmp] Compare [04f2:b008]@[2:2] ?? [0802:2800]@[3:2]
New device plugged in: [0802:2800]
New connection from 127.0.0.1:46836
[ dump_clients] --------------------
[ dump_clients] Client at 127.0.0.1:46836
[ dump_clients] --------------------
[ act_recv_connmode] >>STAGE: Get connection mode
[ act_recv_connmode] Client requested connection mode: FC0
[ act_recv_version] >>STAGE: Receive protocol version
[ act_recv_version] Client version: 00020500
[ act_send_version] >>STAGE: Send protocol version
[ act_send_version] Client BCD version: 20500

...
... thousands of lines after ...
...

[ dump_usbd_pipe_information] MaximumTransferSize : 0x0 [0]
[ dump_usbd_pipe_information] PipeFlags: 00000000
[ dump_usbd_pipe_information] MaximumPacketSize: 0x0 [0]
[ dump_usbd_pipe_information] EndpointAddress: 0
[ dump_usbd_pipe_information] Interval: 0
[ dump_usbd_pipe_information] PipeType: 0
[ dump_usbd_pipe_information] PipeHandle: (nil)
Segmentation fault.

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Mike
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Re: Segmentation fault in ftusbrdpd Linux workstat
Reply #1 on: Jun 5^th, 2009, 3:30am

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Hi Otaci,

I answered you e-mail message recently, however I would like to post it here too, just in case.

I need you to perform several tests on your side. I describe them below.

==================================================
Test 1 (real Windows XP Professional SP3 machine)
==================================================

1) Download our USB Monitor Pro here:
http://fabulatech.com/usb-monitor-pro-download.html

2) Install and launch it

3) File -> Start New Session -> Monitoring of a hot-plugged USB device -> OK

4) Insert your device into the PC

5) Minimize USB Monitor Pro and work with the device for some time (using device software)

6) Close device software and disconnect the device

7) Restore USB Monitor Pro and Save the log:
File -> Save Session -> "Choose some name of the file" -> Save

Notice: You need to do this test WITHOUT USB for Remote Desktop. It means you need to connect your device directly to Windows XP Professional SP3 machine and make 'real.ftm' log file.

In such a way we could see how your device is operating on a real machine without our USB for Remote Desktop.

============================
Test 2 (Windows Workstation)
============================

The same with 1, but you need to insert the device into PC1 (Windows machine), redirect it with a help of USB for Remote Desktop to PC2 (Windows XP Professional SP3 machine) and make 'win_workstation.ftm' log.

In such a way we could see how your device is operating while using our USB redirection under Windows. Will it work fine? In any case please make a log (win_workstation.ftm) and e-mail it to me too.

Thank you in advance!

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Mike Storm

FabulaTech
===================
http://www.fabulatech.com

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