failed to run brp-strip-comment-note

[biubiuzy]

Describe the bug
brp-strip-comment-note execution failed.

To Reproduce
rpmbuild -ba scipy.spec

Please link or attach the packages or spec files involved.

Expected behavior
success

Output
rpmbuild execution failed.

Environment
rpm-4.18.2

Additional context
The issue occurred while executing the brp-strip-comment-note script. "Ok" represents normal logs, while "fail" indicates failed logs. One entry has encountered an anomaly.
[root@localhost ~]# cat ok
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/interpolate/interpnd.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/io/_fast_matrix_market/_fmm_core.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/io/_test_fortran.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/io/matlab/_mio5_utils.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/io/matlab/_mio_utils.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/io/matlab/_streams.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/linalg/_cythonized_array_utils.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/linalg/_decomp_lu_cython.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/special/_test_internal.cpython-311-x86_64-linux-gnu.so
[root@localhost ~]# cat fail
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/interpolate/_fitpack.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/interpolate/_ppoly.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/interpolate/_rgi_cython.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/interpolate/dfitpack.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/interpolate/interpnd.cpython-311-x86_64-linux-gnu./home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/special/_test_internal.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/special/_ufuncs.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/special/_ufuncs_cxx.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/special/cython_special.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/stats/_ansari_swilk_statistics.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/stats/_biasedurn.cpython-311-x86_64-linux-gnu.so
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/stats/_boost/beta_ufunc.cpython-311-x86_64-linux-gnu.so

[biubiuzy]

rpm/scripts/brp-strip-comment-note

Line 18 in ef948df

for f in `find "$RPM_BUILD_ROOT" -type f \( -perm -0100 -or -perm -0010 -or -perm -0001 \) -print0 | xargs -0 -r -P$NCPUS -n32 sh -c "file \"\\$@\" | grep -v \"^${RPM_BUILD_ROOT}/\?usr/lib/debug\" | sed -n -e 's/^\(.*\):[ ]*ELF.*, stripped.*/\1/p'" ARG0`; do

xargs executes commands concurrently, and if the command outputs to the same location, it may cause output confusion.
If I specify -P1, there is no problem.

[dmnks]

Sorry, but I don't understand the issue here. Could you be more specific? What has failed exactly and how?

[biubiuzy]

In the brp-strip-comment-note script, the xargs command concurrently executes sh, and multiple sh scripts output to the same location. This can lead to incorrect entries being returned, subsequently causing the strip command to fail with a "file not found" error.
wrong $f entry, see:
[ 118s] /home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/interpolate/interpnd.cpython-311-x86_64-linux-gnu./home/abuild/rpmbuild/BUILDROOT/scipy-1.12.0-1.h3.x86_64/usr/lib64/python3.11/site-packages/scipy/special/_test_internal.cpython-311-x86_64-linux-gnu.so

[dmnks]

I see now, thanks! Commented on the PR #3869 now.