我在Linux内核中具有如下结构：
struct st_fetch_point {
struct sk_buff *end_pkt ;
struct sk_buff *start_pkt ;
struct sk_buff *current_pkt ;
struct st_fetch_point *next_fortp ;
struct st_fetch_point *next_consec ;
};
我对定义的结构有四个指针，如下所示：
struct mptcp_tcp_sock {
struct st_fetch_point *start_fetch_point ;
struct st_fetch_point *last_fetch_point;
struct st_fetch_point *current_fetch_point;
struct st_fetch_point *first_fetch_point ;
struct tcp_sock *tp;
.......................
.......................
};
struct tcp_sock {
struct mptcp_tcp_sock *mptcp;
............................
............................
};
我只是在执行此操作：
first_fetch_point = kmalloc ((sizeof(struct st_fetch_point)), GFP_ATOMIC);
first_fetch_point->start_pkt = skb; //skb value is a pointer to some memory address
first_fetch_point->current_pkt = skb;
first_fetch_point->end_pkt = skb2;
然后，当我执行以下行时：
tp->mptcp->current_fetch_point = first_fetch_point ; // tp->mptcp->current_fetch_point = NULL before this point
内核冻结。我分配这些指针的方式有什么问题吗？我正在ubuntu平台上工作，并且确实在修复中导致内核冻结的问题。