Checking patch nptl/pthread_cond_common.c...
error: while searching for:
     * New waiters arriving concurrently with the group switching will all go
       into G2 until we atomically make the switch.  Waiters existing in G2
       are not affected.
     * Waiters in G1 have already received a signal and been woken. If they
       haven't woken yet, they will be closed out immediately by the advancing
       of __g_signals to the next "lowseq" (low 31 bits of the new g1_start),
       which will prevent waiters from blocking using a futex on
       __g_signals since it provides enough signals for all possible
       remaining waiters.  As a result, they can each consume a signal
       and they will eventually remove their group reference.  */

  /* Update __g1_start, which finishes closing this group.  The value we add
     will never be negative because old_orig_size can only be zero when we

error: patch failed: nptl/pthread_cond_common.c:221
error: nptl/pthread_cond_common.c: patch does not apply