Oleg Nesterov <[email protected]> wrote: > > + /* > + * We are locking ->it_lock + tasklist_lock backwards > + * from release_task()->exit_itimers(), beware deadlock. > + */ > + leader = timr->it_process->group_leader; > + while (unlikely(!read_trylock(&tasklist_lock))) { > + if (leader->flags & PF_EXITING) { > + smp_rmb(); > + if (thread_group_empty(leader)) > + return 0; > + } > + cpu_relax(); > + } Oh dear. Is there no way to fix this up by taking the locks in the correct order? (Whatever that is). - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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