• Florian Westphal's avatar
    htb: call qdisc_root with rcu read lock held · 0ee13627
    Florian Westphal authored
    saw a debug splat:
    net/include/net/sch_generic.h:287 suspicious rcu_dereference_check() usage!
    other info that might help us debug this:
    rcu_scheduler_active = 1, debug_locks = 0
     2 locks held by kworker/2:1/710:
      #0:  ("events"){.+.+.+}, at: [<ffffffff8106ca1d>]
      #1:  ((&q->work)){+.+...}, at: [<ffffffff8106ca1d>] process_one_work+0x14d/0x690
    Workqueue: events htb_work_func
    Call Trace:
     [<ffffffff812dc763>] dump_stack+0x85/0xc2
     [<ffffffff8109fee7>] lockdep_rcu_suspicious+0xe7/0x120
     [<ffffffff814ced47>] htb_work_func+0x67/0x70
    Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
    Acked-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    0ee13627
sch_htb.c 42.6 KB