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arm worker pthread lockup state dump
Dumping state on this failure/lockup:
Was locked up in eSDK testing of core-image-minimal in execution of
"devtool sdk-install meta-extsdk-toolchain".
python was sitting in pthread_cond_wait()
no other processes, no active fds that were interesting.
In the end I broke the lock in gdb which resulted in:
NOTE: Starting bitbake server...
Loaded 0 entries from dependency cache.
Parsing of 825 .bb files complete (0 cached, 825 parsed). 1459 targets, 53 skipped, 0 masked, 0 errors.
INFO: meta-extsdk-toolchain is already installed
Fatal Python error: drop_gil: PyCOND_WAIT(gil->switch_cond) failed
Python runtime state: finalizing (tstate=0xaaab08055150)
Current thread 0x0000ffffb6bae010 (most recent call first):
File "/home/pokybuild/yocto-worker/qemuarm64-armhost/build/build/tmp/work/qemuarm64-poky-linux/core-image-minimal/1.0-r0/testsdkext/buildtools/sysroots/aarch64-pokysdk-linux/usr/lib/python3.9/_weakrefset.py", line 39 in _remove
Aborted (core dumped)
i.e. it was sitting waiting on the python GIL.
Looks like a pthread bug.
pthreads being used were:
i.e. *our* pthreads (and our python3.9).
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