Ranko Zivojnovic wrote: > BUG: spinlock lockup on CPU#0, swapper/0, c03eff80 > [<c01ed1fe>] _raw_spin_lock+0x108/0x13c > [<c02a8468>] __qdisc_run+0x97/0x1b0 > [<c02a96f3>] qdisc_watchdog+0x19/0x58 > [<c02fe5e7>] __lock_text_start+0x37/0x43 > [<c02a9730>] qdisc_watchdog+0x56/0x58 > [<c02a96da>] qdisc_watchdog+0x0/0x58 > [<c0135d84>] run_hrtimer_softirq+0x58/0xb5 > [...]
> BUG: spinlock lockup on CPU#1, swapper/0, c03eff80 > [<c01ed1fe>] _raw_spin_lock+0x108/0x13c > [<c0298b9b>] est_timer+0x53/0x148 > [<c01294b3>] run_timer_softirq+0x30/0x184 > [<c01295a4>] run_timer_softirq+0x121/0x184 > [<c0126252>] __do_softirq+0x66/0xf3 > [<c0298b48>] est_timer+0x0/0x148 > [...] There is at least one ABBA deadlock, est_timer does: read_lock(&est_lock) spin_lock(e->stats_lock) (which is dev->queue_lock) and qdisc_destroy calls htb_destroy under dev->queue_lock, which calls htb_destroy_class, then gen_kill_estimator and this write_locks est_lock. I can't see the problem above though, the qdisc_run path only takes dev->queue_lock. Please enable lockdep and post the output if any. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html