[avrdude-dev] [bug #27507] SIGSEGV when using avrdragon (avrdude 5.8)

[ŁukaszGóralczyk]

URL:
  <http://savannah.nongnu.org/bugs/?27507>

                 Summary: SIGSEGV when using avrdragon (avrdude 5.8)
                 Project: AVR Downloader/UploaDEr
            Submitted by: liku
            Submitted on: Wed 23 Sep 2009 05:45:44 PM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Lukasz Goralczyk
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Hello,

I've upgraded my system recently and avrdude stopped programming AVRs through
avrdragon board. I'm using avrdude version 5.8, I'm using 64 bit system
(Ubuntu Karmic Koala). Here's the backtrace:

#0  0x000000000041bf06 in jtagmkII_send (pgm=0x6996a0, data=0x7fffffffbf40
"�01277377377377177", len=1) at jtagmkII.c:378
#1  0x000000000041c752 in jtagmkII_getsync (pgm=0x6996a0, mode=3) at
jtagmkII.c:618
#2  0x000000000042c6f8 in stk500v2_dragon_isp_open (pgm=0x6996a0,
port=0x7fffffffe58b "usb") at stk500v2.c:2849
#3  0x0000000000403e20 in main (argc=7, argv=0x7fffffffe248) at main.c:778

There's a dereference of null pointer in jtakmkII_send(), the pointer (cookie
variable) is being set to chained_pdata in in stk500v2_dragon_isp_open() which
is initialised to zero during setup and never changed (I guess).




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