bugAVR Downloader/UploaDEr - Bugs: bug #26408, Crash in stk500v2_open()

 
 

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bug #26408: Crash in stk500v2_open()

Submitter:  Ferenc Kovacs <derefer>
Submitted:  Thu 30 Apr 2009 07:50:10 PM UTC
   
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  Fixed Privacy:  Public
Assigned to:  joerg_wunsch Originator Name:  Ferenc Kovacs
Open/Closed:  Closed Release:  None
Programmer hardware:  Device type: 

Thu 30 Apr 2009 07:50:10 PM UTC, original submission:  

Hi,

When I connect something (e.g. a simple USB <-> Serial adapter,
instead of a working STK500) to /dev/ttyUSB0 and I enter:

$ avrdude-trunk -c stk500 -p m32 -P /dev/ttyUSB0
avrdude: stk500_getsync(): not in sync: resp=0x95
Segmentation fault (core dumped)

Loaded symbols for /lib64/ld-linux-x86-64.so.2
Core was generated by `avrdude -c stk500 -p m32 -P /dev/ttyUSB0'.
Program terminated with signal 11, Segmentation fault.
[New process 8709]
#0  0x00000000004253f8 in stk500v2_open (pgm=0x1935fd0, port=0x7fff255b465d "/dev/ttyUSB0") at stk500v2.c:1190
1190      PDATA(pgm)->pgmtype = PGMTYPE_UNKNOWN;
(gdb) bt
#0  0x00000000004253f8 in stk500v2_open (pgm=0x1935fd0, port=0x7fff255b465d "/dev/ttyUSB0") at stk500v2.c:1190
#1  0x000000000042aa13 in stk500generic_open (pgm=0x1935fd0, port=0x7fff255b465d "/dev/ttyUSB0") at stk500generic.c:54
#2  0x0000000000403a84 in main (argc=7, argv=0x7fff255b3978) at main.c:777

Target: x86_64-linux-gnu
Compiler: gcc version 4.3.3 (Debian 4.3.3-5)

It seems to me, that the setup function for STK500V2 is not
called to initialize the cookie field.  STK500 doesn't seem to
use this field, but when we fallback to STK500V2 cookie gets
dereferenced and it's 0x0.  IMO, setup could be called in
stk500generic.c before opening STK500V2.

(Yes, it doesn't make too much sense to use AVRDUDE without a
working programmer :), but I couldn't make my STK500 work yet
due to some kernel issues with FTDI chips...)

Cheers,
Ferenc

Ferenc Kovacs <derefer>

 

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Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by joerg_wunsch (Updated the item)
  • -email is unavailable- added by derefer (Submitted the item)
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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2009-07-02 joerg_wunsch StatusNone Fixed
        Assigned toNone joerg_wunsch
        Open/ClosedOpen Closed
    2009-04-30 derefer Carbon-CopyRemoved derefer -
    2009-04-30 derefer Carbon-Copy- Added derefer

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