Re: [PATCH] net: tipc: Fix a sleep-in-atomic bug in tipc_msg_reverse

From: Jia-Ju Bai Date: Sat, 10 Jun 2017 17:03:35 +0800 > The kernel may sleep under a rcu read lock in tipc_msg_reverse, and the > function call path is: > tipc_l2_rcv_msg (acquire the lock by rcu_read_lock) > tipc_rcv > tipc_sk_rcv > tipc_msg_reverse >

Re: [PATCH] net: tipc: Fix a sleep-in-atomic bug in tipc_msg_reverse

From: Jia-Ju Bai Date: Sat, 10 Jun 2017 17:03:35 +0800 > The kernel may sleep under a rcu read lock in tipc_msg_reverse, and the > function call path is: > tipc_l2_rcv_msg (acquire the lock by rcu_read_lock) > tipc_rcv > tipc_sk_rcv > tipc_msg_reverse >

RE: [PATCH] net: tipc: Fix a sleep-in-atomic bug in tipc_msg_reverse

Acked. ///jon > -Original Message- > From: Jia-Ju Bai [mailto:baijiaju1...@163.com] > Sent: Saturday, June 10, 2017 05:04 > To: Jon Maloy ; Ying Xue > ; da...@davemloft.net > Cc: net...@vger.kernel.org;

RE: [PATCH] net: tipc: Fix a sleep-in-atomic bug in tipc_msg_reverse

Acked. ///jon > -Original Message- > From: Jia-Ju Bai [mailto:baijiaju1...@163.com] > Sent: Saturday, June 10, 2017 05:04 > To: Jon Maloy ; Ying Xue > ; da...@davemloft.net > Cc: net...@vger.kernel.org; tipc-discuss...@lists.sourceforge.net; linux- > ker...@vger.kernel.org; Jia-Ju Bai

[PATCH] net: tipc: Fix a sleep-in-atomic bug in tipc_msg_reverse

The kernel may sleep under a rcu read lock in tipc_msg_reverse, and the function call path is: tipc_l2_rcv_msg (acquire the lock by rcu_read_lock) tipc_rcv tipc_sk_rcv tipc_msg_reverse pskb_expand_head(GFP_KERNEL) --> may sleep tipc_node_broadcast tipc_node_xmit_skb

[PATCH] net: tipc: Fix a sleep-in-atomic bug in tipc_msg_reverse

The kernel may sleep under a rcu read lock in tipc_msg_reverse, and the function call path is: tipc_l2_rcv_msg (acquire the lock by rcu_read_lock) tipc_rcv tipc_sk_rcv tipc_msg_reverse pskb_expand_head(GFP_KERNEL) --> may sleep tipc_node_broadcast tipc_node_xmit_skb