If glibc rebuilt with --disable-lock-elision (patch of spec file) and related rpms used to build and test findutils, then no errors are reported trying to test in loop the above test-lock. So findutils failure reported by this bug #923486 is probably a side effect of request #285070 (1) referenced in glibc revisions (2) (1) https://build.opensuse.org/request/show/285070 (2) https://build.opensuse.org/package/revisions/Base:System/glibc