On Sat, Dec 30, 2023 at 1:31 AM Richard Purdie
<[email protected]> wrote:
>
> On Wed, 2023-12-27 at 11:30 -0700, Joshua Watt wrote:
> > On Wed, Dec 27, 2023 at 4:28 AM Richard Purdie
> > <[email protected]> wrote:
> > >
> > > I wanted to write down some thoughts on this which I have all the
> > > pieces handy.
> > >
> > > We saw a nightly layer check fail for meta-openembedded:
> > >
> > > https://autobuilder.yoctoproject.org/typhoon/#/builders/121/builds/1798/steps/21/logs/stdio
> > >
> > > INFO: 
> > > ======================================================================
> > > INFO: ERROR: test_show_environment (common.CommonCheckLayer)
> > > INFO: 
> > > ----------------------------------------------------------------------
> > > INFO: Traceback (most recent call last):
> > >   File 
> > > "/home/pokybuild/yocto-worker/check-layer-nightly/build/scripts/lib/checklayer/cases/common.py",
> > >  line 48, in test_show_environment
> > >     check_command('Layer %s failed to show environment.' % 
> > > self.tc.layer['name'],
> > >   File 
> > > "/home/pokybuild/yocto-worker/check-layer-nightly/build/scripts/lib/checklayer/__init__.py",
> > >  line 287, in check_command
> > >     raise RuntimeError(msg)
> > > RuntimeError: Layer meta-gnome failed to show environment.
> > > Command: bitbake -e
> > > Output:
> > > libgcc_s.so.1 must be installed for pthread_cancel to work
> > > Aborted (core dumped)
> > >
> > > which unsurprisingly is on ubuntn 20.04. We've also seen issues like
> > > this on Debian 11.
> > >
> > > I noticed:
> > >
> > > https://stackoverflow.com/questions/64797838/libgcc-s-so-1-must-be-installed-for-pthread-cancel-to-work
> > >
> > > and:
> > >
> > > https://bugs.ams1.psf.io/issue42888
> > >
> > > which led me to try:
> > > ubuntu2004-ty-1:~$ wget 
> > > https://bugs.ams1.psf.io/file50112/pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ echo $?
> > > 0
> > > rpurdie@ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > libgcc_s.so.1 must be installed for pthread_cancel to work
> > > Aborted (core dumped)
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > libgcc_s.so.1 must be installed for pthread_cancel to work
> > > Aborted (core dumped)
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > libgcc_s.so.1 must be installed for pthread_cancel to work
> > > Aborted (core dumped)
> > >
> > > (1 in 4 success)
> > >
> > > Then adding to the script:
> > > import ctypes
> > > libgcc_s = ctypes.CDLL('libgcc_s.so.1')
> > >
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 pthread_cancel_bug.py
> > > ubuntu2004-ty-1:~$ python3 --version
> > > Python 3.8.10
> > >
> > > I also tried this on debian 11:
> > >
> > > debian11-ty-1:~$ python3 pthread_cancel_bug.py
> > > libgcc_s.so.1 must be installed for pthread_cancel to work
> > > Aborted
> > >
> > > debian11-ty-1:~$ python3 --version
> > > Python 3.9.2
> > >
> > > where the above workaround using ctypes also seems to work.
> > >
> > > I'm therefore tempted for python 3.8/3.9 to preload libgcc_s as a
> > > workaround for this...
> >
> > Seems reasonable to me, as long as we can restrict it to a specific
> > version range of python and have a nice comment explaining why
>
> Patch tested, sent and I've applied it to older bitbake branches too in
> the hope that it helps some of Steve's autobuilder failures too.

I pulled the patch into my -nut branches when you posted it and have
been testing too -- all looks fine from my perspective.

Thanks for merging!

Steve
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