* linux-low.c (linux_wait_for_event): Don't clear the `stepping' flag. (wait_for_sigstop): Don't leave a finished single-step SIGTRAP pending. (linux_continue_one_thread): Only preserve the stepping flag if there's a pending breakpoint. gdb/testsuite/ * gdb.threads/pending-step.c, gdb.threads/pending-step.exp: New.