vfree() is going to use sleeping lock. Thread stack freed in atomic context, therefore we must use vfree_atomic() here.
Signed-off-by: Andrey Ryabinin <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Joel Fernandes <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Jisheng Zhang <[email protected]> Cc: Chris Wilson <[email protected]> Cc: John Dias <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: [email protected] --- kernel/fork.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/fork.c b/kernel/fork.c index fd85c68..417e94f 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -229,7 +229,7 @@ static inline void free_thread_stack(struct task_struct *tsk) } local_irq_restore(flags); - vfree(tsk->stack); + vfree_atomic(tsk->stack); return; } #endif -- 2.7.3
