[avrdude-dev] [bug #53008] avrdude attempts to read large amounts of nonexistent EEPROM

[The Lightning Stalker]

URL:
  <http://savannah.nongnu.org/bugs/?53008>

                 Summary: avrdude attempts to read large amounts of
nonexistent EEPROM
                 Project: AVR Downloader/UploaDEr
            Submitted by: lightningstalker
            Submitted on: Mon 29 Jan 2018 11:33:56 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: The Lightning Stalker
        Originator Email: 
             Open/Closed: Open
                 Release: 6.3
         Discussion Lock: Any
     Programmer hardware: USBtinyISP
             Device type: m8

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Details:

avrdude is unable to read the EEPROM from this device. Oddly enough writing
and verifying seem to work. It seems more likely to be a problem with avrdude
than USBtinyISP because otherwise how would it be able to verify?

Regardless of ihex or any other format it will read several kB of data then
segfault at 85%.

$ avrdude -v -pm8 -cusbtiny -Ueeprom:r:eep:i

avrdude: Version 6.3
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "/etc/avrdude.conf"
         User configuration file is "/home/robert/.avrduderc"
         User configuration file does not exist or is not a regular file,
skipping

         Using Port                    : usb
         Using Programmer              : usbtiny
         Setting bit clk period        : 1.0
avrdude: usbdev_open(): Found USBtinyISP, bus:device: 002:032
         AVR Part                      : ATmega8
         Chip Erase delay              : 10000 us
         PAGEL                         : PD7
         BS2                           : PC2
         RESET disposition             : dedicated
         RETRY pulse                   : SCK
         serial program mode           : yes
         parallel program mode         : yes
         Timeout                       : 200
         StabDelay                     : 100
         CmdexeDelay                   : 25
         SyncLoops                     : 32
         ByteDelay                     : 0
         PollIndex                     : 3
         PollValue                     : 0x53
         Memory Detail                 :

                                  Block Poll               Page               
       Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW 
MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ -----
----- ---------
           eeprom         4    20   128    0 no        512    4      0  9000 
9000 0xff 0xff
           flash         33    10    64    0 yes      8192   64    128  4500 
4500 0xff 0x00
           lfuse          0     0     0    0 no          1    0      0  2000 
2000 0x00 0x00
           hfuse          0     0     0    0 no          1    0      0  2000 
2000 0x00 0x00
           lock           0     0     0    0 no          1    0      0  2000 
2000 0x00 0x00
           calibration    0     0     0    0 no          4    0      0     0  
  0 0x00 0x00
           signature      0     0     0    0 no          3    0      0     0  
  0 0x00 0x00

         Programmer Type : USBtiny
         Description     : USBtiny simple USB programmer,
http://www.ladyada.net/make/usbtinyisp/
avrdude: programmer operation not supported

avrdude: Setting SCK period to 1 usec
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e9307 (probably m8)
avrdude: safemode: hfuse reads as CC
avrdude: reading eeprom memory:

Reading | ###########################################        | 85%
5.23sSegmentation fault





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