[issue34087] django: segmentation fault on garbage collection in visit_decref()

INADA Naoki added the comment: I received two core files ("core" and "core.23") from fenrrir, thank you. But I can't investigate well, sorry. I think someone breaks memory, and SEGV happened later. I need to reproduce it on my machine... In core.23, SEGV happens in kill() syscall. I can't get

[issue34087] django: segmentation fault on garbage collection in visit_decref()

INADA Naoki added the comment: @jonash, Thank you. Would you share core file too? You can get core file when reproducing it after `ulimit -c unlimited`. My mail address is "songofacandy [at] gmail.com". Please share it via Dropbox or Google Drive. --

[issue34087] django: segmentation fault on garbage collection in visit_decref()

Rodrigo Pinheiro Marques de Araújo added the comment: I did remove PyYAML, lxml and Pillow here but segfault still happen -- ___ Python tracker ___

[issue34087] django: segmentation fault on garbage collection in visit_decref()

Jonas H. added the comment: I can reproduce this on Ubuntu 18.04. INADA, I have a full gdb backtrace with Python 3.7 development build. I'd like to share it with you privately as I'm concerned it may contain sensible information. I know that's a bit unconventional; if you have other suggesti

[issue34087] django: segmentation fault on garbage collection in visit_decref()

INADA Naoki added the comment: Hmm, all segfault are happend on macOS? -- ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue34087] django: segmentation fault on garbage collection in visit_decref()

Rodrigo Pinheiro Marques de Araújo added the comment: Extensions: ./_cffi_backend.cpython-37m-darwin.so ./_mssql.cpython-37m-darwin.so ./_yaml.cpython-37m-darwin.so ./Crypto/Cipher/_AES.cpython-37m-darwin.so ./Crypto/Cipher/_ARC2.cpython-37m-darwin.so ./Crypto/Cipher/_ARC4.cpython-37m-darwin.so

[issue34087] django: segmentation fault on garbage collection in visit_decref()

Jonas H. added the comment: Btw my segfault is from Django too, but that may just be a coincidence -- ___ Python tracker ___ ___ Py

[issue34087] django: segmentation fault on garbage collection in visit_decref()

Jonas H. added the comment: I also have a segfault that goes away with malloc debugging. Not sure if it's the same issue. My extension modules are venv/lib/python3.7/site-packages//_yaml.cpython-37m-darwin.so venv/lib/python3.7/site-packages//netifaces.cpython-37m-darwin.so venv/lib/python3.

[issue34087] django: segmentation fault on garbage collection in visit_decref()

INADA Naoki added the comment: Would you provide list of extension modules? What happens when removing some of them? -- ___ Python tracker ___

[issue34087] django: segmentation fault on garbage collection in visit_decref()

Rodrigo Pinheiro Marques de Araújo added the comment: Unfortunately with 'PYTHONMALLOC=debug' the segmentation fault do not happen. -- ___ Python tracker ___ __

[issue34087] django: segmentation fault on garbage collection in visit_decref()

Change by STINNER Victor : -- title: Segmentation fault on visit_decref -> django: segmentation fault on garbage collection in visit_decref() ___ Python tracker ___ __