Re: Bitbake build fails because of a python function

Maksym Iliev

Dear Alexander,


The reason for running it in /srv/yocto is because this directory uses NFS caching. I will look into the possibility of running the build in $HOME instead.


I have also ran the strace command but it produces way too much output. I will do my best to sort through it and report back.




From: Alexander Kanavin
Sent: November 4, 2021 4:03 PM
To: Maksym Iliev
Cc: Yocto-mailing-list
Subject: Re: [yocto] Bitbake build fails because of a python function


You don't often get email from alex.kanavin@.... Learn why this is important

Just wondering, what it /srv/yocto? Can you build in your $HOME?


Otherwise, you can run bitbake under 'strace -ff -o strace-log ...' and try to check exactly what syscall causes cpio to fail.




On Thu, 4 Nov 2021 at 20:44, Maksym Iliev <maksym.iliev@...> wrote:

Dear Alexander,

Thanks a lot for responding. I've attached the log file.
The only valuable info I could find is the following piece at the end of the log file. Could that be a potential cause for failures?

Deprecated external dependency generator is used!

create archive failed: cpio: write

WARNING: exit code 1 from a shell command.




Thanks in advance,


From: Alexander Kanavin
Sent: November 3, 2021 4:48 PM
To: Maksym Iliev
Cc: Yocto-mailing-list
Subject: Re: [yocto] Bitbake build fails because of a python function


You don't often get email from alex.kanavin@.... Learn why this is important

It's hard to say if we can't replicate the issue. Check /srv/yocto/build/tmp/work/corei7-64-poky-linux/perl/5.30.1-r0/temp/log.do_package_write_rpm, it might have useful debugging info.





On Wed, 3 Nov 2021 at 21:45, Maksym Iliev via <> wrote:

Hello guys. I am brand new to yocto and bitbake and I am looking for any help/advice/hints I can get. I have inherited someone else's code for building yocto project images, but the bitbake fails with the following error:

ERROR: perl-5.30.1-r0 do_package_write_rpm: Error executing a python function in exec_func_python() 
autogenerated:The stack trace of python calls that resulted in this exception/failure was: File: 'exec_func_python() autogenerated', lineno: 2, function: <module>
0001: *** 
File: '/srv/yocto/poky/meta/classes/package_rpm.bbclass', lineno: 712, function: do_package_rpm     
0709:    # Build the rpm package!     
0710:    d.setVar('BUILDSPEC', cmd + \"\\n\" + cleanupcmd + \"\\n\")     
0711:    d.setVarFlag('BUILDSPEC', 'func', '1')
0712:'BUILDSPEC', d)     
0714:    if d.getVar('RPM_SIGN_PACKAGES') == '1':
0715:\"sign_rpm\", d)     
File: '/srv/yocto/poky/bitbake/lib/bb/', lineno: 254, function: exec_func     
0250:    with bb.utils.fileslocked(lockfiles):     
0251:    if ispython:     
0252:            exec_func_python(func, d, runfile, cwd=adir)     
0253:    else: *** 
0254:            exec_func_shell(func, d, runfile, cwd=adir)     
0256:    try:     
0257:        curcwd = os.getcwd()     
0258:    except:
File: '/srv/yocto/poky/bitbake/lib/bb/', lineno: 455, function: exec_func_shell     
0451:    with open(fifopath, 'r+b', buffering=0) as fifo:     
0452:        try:     
0453:            bb.debug(2, \"Executing shell function %s\" % func)    
0454:            with open(os.devnull, 'r+') as stdin, logfile: *** 
0455:      , shell=False, stdin=stdin, log=logfile, extrafiles=[(fifo,readfifo)])     
0456:        finally:     
0457:            os.unlink(fifopath)    
0459:    bb.debug(2, \"Shell function %s finished\" % func)
File: '/srv/yocto/poky/bitbake/lib/bb/', lineno: 184, function: run     
0181:    if pipe.returncode != 0:     
0182:        if log:     
0183:            # Don't duplicate the output in the exception if logging it *** 
0184:            raise ExecutionError(cmd, pipe.returncode, None, None)     
0185:        raise ExecutionError(cmd, pipe.returncode, stdout, stderr)     
0186:    return stdout, stderr Exception: bb.process.ExecutionError: Execution of '/srv/yocto/build/tmp/work/corei7-64-poky-linux/perl/5.30.1-r0/temp/run.BUILDSPEC.35372' failed with exit code 1

Would anyone be able to point me in the right direction as to what could be potentially causing this issue?

Thanks in advance,



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