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[Lcdproc] lcdproc v0.5.3 - ConnectionType=ftdi [[ Segmentation fault ]]


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  • From: santanu at hep.phy.cam.ac.uk (Santanu Das)
  • Subject: [Lcdproc] lcdproc v0.5.3 - ConnectionType=ftdi [[ Segmentation fault ]]
  • Date: Fri, 22 Oct 2010 10:23:15 +0100

Okay, I have the backtrace now:

root at htpc:/usr/local/etc# gdb LCDd
GNU gdb (GDB) 7.1-ubuntu
Copyright (C) 2010 Free Software Foundation, Inc.

[ .... ]

Reading symbols from /usr/local/sbin/LCDd...(no debugging symbols
found)...done.
(gdb) run
Starting program: /usr/local/sbin/LCDd
LCDd version 0.5.3 starting
Built on Oct 22 2010, protocol version 0.3, API version 0.5
Using Configuration File: /usr/local/etc/LCDd.conf
Set report level to 5, output to stderr
LCDd 0.5.3, LCDproc Protocol 0.3
Part of the LCDproc suite
Copyright (C) 1998-2009 William Ferrell, Scott Scriven
and many other contributors

[ ... ]

Server running in foreground
Listening for queries on 127.0.0.1:13666
screenlist_init()
driver_load(name="hd44780", filename="/usr/local/lib/lcdproc/hd44780.so")
HD44780: using ConnectionType: ftdi
HD44780: Matrix key 3 0: "Enter"
HD44780: Matrix key 3 1: "Up"
HD44780: Matrix key 3 2: "Down"
HD44780: Matrix key 3 3: "Escape"
hd44780: Using hd44780_default charmap

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff743e5a7 in usb_control_msg () from /lib/libusb-0.1.so.4
(gdb) bt
#0 0x00007ffff743e5a7 in usb_control_msg () from /lib/libusb-0.1.so.4
#1 0x00007ffff72367bf in ftdi_enable_bitbang () from
/usr/lib/libftdi.so.1
#2 0x00007ffff764f08c in hd_init_ftdi () from
/usr/local/lib/lcdproc/hd44780.so
#3 0x00007ffff764a6f3 in HD44780_init () from
/usr/local/lib/lcdproc/hd44780.so
#4 0x0000000000411957 in driver_load ()
#5 0x0000000000410bd1 in drivers_load_driver ()
#6 0x00000000004084ee in main ()


Something went wrong during the compilation? Thanks in advance.

Cheers,
Santanu

> On 22/10/2010 08:08, Thomas Jarosch wrote:
>> On Thursday, 21. October 2010 20:59:41 Santanu Das wrote:
>>> 4275.263767] LCDd[1537]: segfault at 0 ip 00007f49ac5aa5a7 sp
>>> 00007fff4fc1f4d0 error 4 in libusb-0.1.so.4.4.4[7f49ac5a7000+7000]
>>>
>>> does it help debugging at all? Can anyone please help?
>> Do you get a core dump or would you be able to
>> run it inside gdb and get a backtrace?
>>
>> That would help the most.
>>
>> Cheers,
>> Thomas
>> _______________________________________________
>> LCDproc mailing list
>> LCDproc at lists.omnipotent.net
>> http://lists.omnipotent.net/mailman/listinfo/lcdproc
>
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> LCDproc at lists.omnipotent.net
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