Hi Alex,

On 2020-11-12 12:38, Alexander Kanavin wrote:
If you can provide exact steps to reproduce (the recipe is not available in oe-core), I can take a look. It's been reported plenty of times, but always with something not in core and not easily available.

here are the steps to reproduce with only poky. I hope it can help you find the root cause:

    $ git clone https://git.yoctoproject.org/git/poky sources/poky
    $ . ./sources/poky/oe-init-build-env
    $ echo 'MACHINE = "qemuarm64"' >> conf/auto.conf
    $ devtool modify u-boot

And here is the output on my machine:

    Build Configuration:
    BB_VERSION           = "1.49.0"
    BUILD_SYS            = "x86_64-linux"
    NATIVELSBSTRING      = "ubuntu-20.04"
    TARGET_SYS           = "aarch64-poky-linux"
    MACHINE              = "qemuarm64"
    DISTRO               = "poky"
    DISTRO_VERSION       = "3.2+snapshot-20201112"
    TUNE_FEATURES        = "aarch64 armv8a crc cortexa57"
    TARGET_FPU           = ""
    meta
    meta-poky
    meta-yocto-bsp       = "master:e949e76d0f6897ec5d4feaa47afd2b049b32707f"
    workspace            = "<unknown>:<unknown>"

    Initialising tasks: 100% |###########################################################| Time: 0:00:00     Sstate summary: Wanted 20 Found 20 Missed 0 Current 0 (100% match, 0% complete)
    NOTE: Executing Tasks
    ERROR: Error executing a python function in exec_python_func() autogenerated:

    The stack trace of python calls that resulted in this exception/failure was:
    File: 'exec_python_func() autogenerated', lineno: 2, function: <module>
         0001:
     *** 0002:devtool_post_unpack(d)
         0003:
    File: '/work/yocto/devtool-reproduce2/sources/poky/meta/classes/devtool-source.bbclass', lineno: 68, function: devtool_post_unpack
         0064:}
         0065:
         0066:
         0067:python devtool_post_unpack() {
     *** 0068:    import oe.recipeutils
         0069:    import shutil
         0070:    sys.path.insert(0, os.path.join(d.getVar('COREBASE'), 'scripts', 'lib'))
         0071:    import scriptutils
         0072:    from devtool import setup_git_repo
    File: '/work/yocto/devtool-reproduce2/sources/poky/meta/lib/oe/recipeutils.py', lineno: 21, function: <module>
         0017:import shutil
         0018:import re
         0019:import fnmatch
         0020:import glob
     *** 0021:import bb.tinfoil
         0022:
         0023:from collections import OrderedDict, defaultdict
         0024:from bb.utils import vercmp_string
         0025:
    File: '/work/yocto/devtool-reproduce2/sources/poky/bitbake/lib/bb/tinfoil.py', lineno: 19, function: <module>
         0015:from collections import OrderedDict, defaultdict
         0016:from functools import partial
         0017:
         0018:import bb.cache
     *** 0019:import bb.cooker
         0020:import bb.providers
         0021:import bb.taskdata
         0022:import bb.utils
         0023:import bb.command
    File: '/work/yocto/devtool-reproduce2/sources/poky/bitbake/lib/bb/cooker.py', lineno: 25, function: <module>
         0021:import bb, bb.exceptions, bb.command
         0022:from bb import utils, data, parse, event, cache, providers, taskdata, runqueue, build
         0023:import queue
         0024:import signal
     *** 0025:import prserv.serv
         0026:import pyinotify
         0027:import json
         0028:import pickle
         0029:import codecs
    File: '/work/yocto/devtool-reproduce2/sources/poky/bitbake/lib/prserv/serv.py', lineno: 7, function: <module>
         0003:#
         0004:
         0005:import os,sys,logging
         0006:import signal, time
     *** 0007:from xmlrpc.server import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler
         0008:import threading
         0009:import queue
         0010:import socket
         0011:import io
    File: '/usr/lib/python3.8/xmlrpc/server.py', lineno: 117, function: <module>
         0113:import socketserver
         0114:import sys
         0115:import os
         0116:import re
     *** 0117:import pydoc
         0118:import traceback
         0119:try:
         0120:    import fcntl
         0121:except ImportError:
    File: '/usr/lib/python3.8/pydoc.py', lineno: 370, function: <module>
         0366:    return module
         0367:
         0368:# ---------------------------------------------------- formatter base class
         0369:
     *** 0370:class Doc:
         0371:
         0372:    PYTHONDOCS = os.environ.get("PYTHONDOCS",
         0373: "https://docs.python.org/%d.%d/library";
         0374:                                % sys.version_info[:2])
    File: '/usr/lib/python3.8/pydoc.py', lineno: 400, function: Doc
         0396:        raise TypeError(message)
         0397:
         0398:    docmodule = docclass = docroutine = docother = docproperty = docdata = fail
         0399:
     *** 0400:    def getdocloc(self, object, basedir=sysconfig.get_path('stdlib')):
         0401:        """Return the location of module docs or None"""
         0402:
         0403:        try:
         0404:            file = inspect.getabsfile(object)
    File: '/usr/lib/python3.8/sysconfig.py', lineno: 512, function: get_path
         0508:    """Return a path corresponding to the scheme.
         0509:
         0510:    ``scheme`` is the install scheme name.
         0511:    """
     *** 0512:    return get_paths(scheme, vars, expand)[name]
         0513:
         0514:
         0515:def get_config_vars(*args):
         0516:    """With no arguments, return a dictionary of all configuration     File: '/usr/lib/python3.8/sysconfig.py', lineno: 502, function: get_paths          0498:    ``scheme`` is the install scheme name. If not provided, it will
         0499:    return the default scheme for the current platform.
         0500:    """
         0501:    if expand:
     *** 0502:        return _expand_vars(scheme, vars)
         0503:    else:
         0504:        return _INSTALL_SCHEMES[scheme]
         0505:
         0506:
    File: '/usr/lib/python3.8/sysconfig.py', lineno: 172, function: _expand_vars
         0168:def _expand_vars(scheme, vars):
         0169:    res = {}
         0170:    if vars is None:
         0171:        vars = {}
     *** 0172:    _extend_dict(vars, get_config_vars())
         0173:
         0174:    for key, value in _INSTALL_SCHEMES[scheme].items():
         0175:        if os.name in ('posix', 'nt'):
         0176:            value = os.path.expanduser(value)
    File: '/usr/lib/python3.8/sysconfig.py', lineno: 550, function: get_config_vars
         0546:
         0547:        if os.name == 'nt':
         0548:            _init_non_posix(_CONFIG_VARS)
         0549:        if os.name == 'posix':
     *** 0550:            _init_posix(_CONFIG_VARS)
         0551:        # For backward compatibility, see issue19555
         0552:        SO = _CONFIG_VARS.get('EXT_SUFFIX')
         0553:        if SO is not None:
         0554:            _CONFIG_VARS['SO'] = SO
    File: '/usr/lib/python3.8/sysconfig.py', lineno: 421, function: _init_posix
         0417:def _init_posix(vars):
         0418:    """Initialize the module as appropriate for POSIX systems."""          0419:    # _sysconfigdata is generated at build time, see _generate_posix_vars()
         0420:    name = _get_sysconfigdata_name()
     *** 0421:    _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
         0422:    build_time_vars = _temp.build_time_vars
         0423:    vars.update(build_time_vars)
         0424:
         0425:def _init_non_posix(vars):
    Exception: ModuleNotFoundError: No module named '_sysconfigdata'


Thanks,
/Peter

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