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139c72f38a
Various C library implementations have various races with regards to caching getpid() or TID inside pthread_kill() implementations. For example see clone(2) glibc man page and pthread_kill Bionic C library source. Work around that by making sure correct PID/TGID and TID values are retrieved from the kernel when re-raising the signal. It can be delivered immediately after the clone system call while C library cached copies have not yet been updated. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>