Whenever perf got rebuilt, I was consistently getting errors such as | find: '[...]/perf/1.0-r9/perf-1.0/plugin_mac80211.so': No such file or directory | find: '[...]/perf/1.0-r9/perf-1.0/plugin_mac80211.so': No such file or directory | find: find: '[...]/perf/1.0-r9/perf-1.0/libtraceevent.a''[...]/perf/1.0-r9/perf-1.0/libtraceevent.a': No such file or directory: No such file or directory | [...] | find: cannot delete '/mnt/xfs/devel/pil/yocto/tmp-glibc/work/wandboard-oe-linux-gnueabi/perf/1.0-r9/perf-1.0/util/.pstack.o.cmd': No such file or directory
breaking the whole build. The root cause seems to be that the implicit 'make clean' done during do_configure ends up running in parallel, and thus multiple find commands attempt to stat and/or delete the same file. This patch of tools/perf/Makefile has been ack'ed upstream (lkml.kernel.org/r/20180705134955.GB3686@krava). Since the sed script matches exactly the lines clean: $(make) it should be harmless to have this even with a fixed kernel, and it can be removed if and when all relevant -stable kernels have it. Signed-off-by: Rasmus Villemoes <rasmus.villem...@prevas.dk> --- meta/recipes-kernel/perf/perf.bb | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/meta/recipes-kernel/perf/perf.bb b/meta/recipes-kernel/perf/perf.bb index 51f5597eb9..1cf2666ee5 100644 --- a/meta/recipes-kernel/perf/perf.bb +++ b/meta/recipes-kernel/perf/perf.bb @@ -145,6 +145,11 @@ python copy_perf_source_from_kernel() { bb.utils.copyfile(src, dest) } +do_configure[prefuncs] += "disable_clean_parallelism" +disable_clean_parallelism () { + sed -i '/^clean:$/{n;s/^\t\$(make)$/\t\$(make) -j1/}' ${S}/tools/perf/Makefile +} + do_configure_prepend () { # If building a multlib based perf, the incorrect library path will be # detected by perf, since it triggers via: ifeq ($(ARCH),x86_64). In a 32 bit -- 2.16.4 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core