ggardet added the comment:
With PYTHONMALLOC=malloc, gdb is not crashing anymore. Thanks for the
workaround.
pymalloc is not aware of MTE, so a SegFault occurs on any access to the memory
since the check fails.
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Python tracker
<ht
ggardet added the comment:
Is there any runtime option (env variable or something else) to use glibc
malloc instead of pymalloc? Or the choice made at compile time is immutable?
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Python tracker
<https://bugs.python.org/issue43
New submission from ggardet :
When Memory Tagging Extension (MTE) [0] is enabled on aarch64, python malloc
make programs to crash.
I noticed it while trying to use GDB with MTE enabled in user-space [1], and
gdb crashed on start-up. Rebuilding python (3.8) using '--without-pymalloc
