entry= macb_rx_ring_wrap(bp, queue->rx_prepared_head);/*Make hw descriptor updates visible to CPU*/rmb(); queue->rx_prepared_head++; desc=macb_rx_desc(queue, entry);if(!queue->rx_skbuff[entry]) {/*allocate sk_buff for this free entry in ring*/skb= netdev_alloc_skb(bp->dev...
struct__sk_buff{ __u32 len; __u32 pkt_type; __u32 mark; __u32 queue_mapping; __u32 protocol; __u32 vlan_present; __u32 vlan_tci; __u32 vlan_proto; __u32 priority; __u32 ingress_ifindex; __u32 ifindex; __u32 tc_index; __u32 cb[5]; __u32 hash; __u32 tc...
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Hypervisor : Nutanix Openshift Container Platform 3.6 Issue skb_warn_bad_offloadwarning message during starting openshift pod(container) Raw kernel: ---[ cut here ]--- kernel: WARNING: CPU: 3 PID: 2696 at net/core/dev.c:2496 skb_warn_bad_offload+0xcd/0xda kernel: : caps=(0x0000362007...
在Linux内核开发中,有一个非常重要的数据结构叫做skb_queue_tail。在内核网络子系统中,skb_queue_tail被用来管理网络数据包的队列,是一种实现网络包收发的高效机制。skb_queue_tail可以让内核注册的网络协议栈能够快速地处理网络数据包,提高系统的网络性能和吞吐量。
<2>[259117.681597] kernel BUG at net/core/skbuff.c:1886! <4>[259117.738957] invalid opcode: 0000 [#1] SMP <4>[259117.789236] last sysfs file: /sys/devices/system/cpu/online <4>[259117.857008] CPU 0 crash> bt PID: 0 TASK: ffffffff81a8d020 CPU: 0 COMMAND: "swapper" #0 [ffff880061...
But as soon as this skb is added to socket receive queue, another thread can consume it. This means that llc must use regular skb_unlink() and kfree_skb() so that both producer and consumer can safely work on the same skb. [1] BUG: KASAN: use-after-free in atomic_read include/...
q = &sk->sk_receive_queue; spin_lock_bh(&q->lock); skb = skb_peek(q); if (skb) len = skb->len; spin_unlock_bh(&q->lock); }return len; }static int pep_ioctl(struct sock *sk, int cmd, int *karg) { struct pep_sock *pn = pep_sk(sk); ...
- int err; struct iphdr *user_iph = (struct iphdr *)v->payload; + struct sk_buff *nskb; if (v->data_len < sizeof(*user_iph)) return 0; @@ -349,14 +349,16 @@ ipq_mangle_ipv4(ipq_verdict_msg_t *v, struct ipq_queue_entry *e) if (v->data_len > 0xFFFF) return -...
GIT: unionfs-odf: PPPOL2TP: Fix SMP issues in skb reorder queue handling commit 43bee598bd747dc6849d3c4f32a3a912200073c0 Author: James Chapman <[EMAIL PROTECTED]> Date: Sun Apr 6 23:41:29 2008 -0700