wesm commented on pull request #7337:
URL: https://github.com/apache/arrow/pull/7337#issuecomment-637922386
I figured it out, they are threads from cblas
```
Thread 1 "python" hit Breakpoint 1, __pthread_create_2_1
(newthread=0x7fffebffa900 <blas_threads>, attr=0x0,
start_routine=0x7fffea6ae680 <blas_thread_server>, arg=0x0)
at pthread_create.c:610
610 in pthread_create.c
(gdb) bt
#0 __pthread_create_2_1 (newthread=0x7fffebffa900 <blas_threads>, attr=0x0,
start_routine=0x7fffea6ae680 <blas_thread_server>, arg=0x0) at
pthread_create.c:610
#1 0x00007fffea6aea43 in blas_thread_init () from
/home/wesm/miniconda/envs/arrow-3.7/lib/python3.7/site-packages/numpy/core/../../../../libcblas.so.3
#2 0x00007fffea52f087 in gotoblas_init () from
/home/wesm/miniconda/envs/arrow-3.7/lib/python3.7/site-packages/numpy/core/../../../../libcblas.so.3
```
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
