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sbrandt
Asked: 2017-02-23 07:25:44 +0800 CST

MemoryError when using gdb's Python extension on Jessie

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In the past, I frequently used the possibility to attach gdb to a running Python process and use the py-* extensions for debugging. However, since Debian Jessie, this does not work anymore and throws a MemoryError instead.

Steps to reproduce:

  • Create a Vagrant machine with debian/jessie64 box
  • In the box sudo apt-get install gdb python-dbg
  • Create a test file echo "raw_input()" > test.py" and run python test.py
  • Attach with gdb gdb -p <processe's PID>
  • Try py-bt or any other py-* command

Result is:

(gdb) py-bt
Python Exception <class 'gdb.MemoryError'> Cannot access memory at address 0x12: 
Error occurred in Python command: Cannot access memory at address 0x12

... when using debian/wheezy64 as base box:

#10 Frame 0xf2faf0, for file test.py, line 1, in <module> ()
    raw_input()

Anyone encountered and solved this issue?

debian python gdb

0 Answers