kernel/fs/exec.c
.. .. @@ -1028,6 +1028,7 @@ 1028 1028 } 1029 1029 } 1030 1030 task_lock(tsk); 1031 + preempt_disable_rt();1031 1032 1032 1033 local_irq_disable(); 1033 1034 active_mm = tsk->active_mm; .. .. @@ -1047,6 +1048,7 @@ 1047 1048 local_irq_enable(); 1048 1049 tsk->mm->vmacache_seqnum = 0; 1049 1050 vmacache_flush(tsk); 1051 + preempt_enable_rt();1050 1052 task_unlock(tsk); 1051 1053 if (old_mm) { 1052 1054 up_read(&old_mm->mmap_sem);