[New-bugs-announce] [issue40746] test_gdb failing on Raspbian on 3.9, regression from 3.8

[Gregory P. Smith]

New submission from Gregory P. Smith <greg at krypto.org>:

https://buildbot.python.org/all/#/builders/727

test_tuples (test.test_gdb.PrettyPrintTests)
Verify the pretty-printing of tuples ... ok
test_bt (test.test_gdb.PyBtTests)
Verify that the "py-bt" command works ... FAIL
Stderr:
Python Exception <class 'gdb.MemoryError'> Cannot access memory at address 0xfffffedc: 
Error occurred in Python command: Cannot access memory at address 0xfffffedc

and a pile of similar errors after test_bt

Marking release blocker as this isn't present in 3.8 or earlier, we've got a regression here.

i haven't tried to debug yet, but that pointer value smells like something did a negative offset from NULL...

----------
components: Tests
messages: 369736
nosy: gregory.p.smith
priority: release blocker
severity: normal
status: open
title: test_gdb failing on Raspbian on 3.9, regression from 3.8
versions: Python 3.10, Python 3.9

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<https://bugs.python.org/issue40746>
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