Howard A. Landman <how...@riverrock.org> added the comment:
It appears to be in the spidev library xfer method, when used for reading.
Calling that 107.4M times (using the same code as inside my read_regs24()
method) causes the free() error.
Breakpoint 1, malloc_printerr (str=0x76e028f8 "free(): invalid pointer")
at malloc.c:5341
5341 malloc.c: No such file or directory.
(gdb) bt
#0 malloc_printerr (str=0x76e028f8 "free(): invalid pointer") at malloc.c:5341
#1 0x76d44d50 in _int_free (av=0x76e1f7d4 <main_arena>,
p=0x43417c <small_ints.lto_priv+72>, have_lock=<optimized out>) at
malloc.c:4165
#2 0x001b4f40 in list_dealloc (op=0x766d0f58) at ../Objects/listobject.c:324
#3 0x7669b660 in ?? ()
from /usr/lib/python3/dist-packages/spidev.cpython-37m-arm-linux-gnueabihf.so
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Should I be worried about the "corrupt stack" message?
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue41335>
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