On Tue, Dec 21, 2010 at 08:45:56AM -0500, J. Bruce Fields wrote:
> Tests otherwise complete fine. This may also be in upstream, I haven't
> checked.
Also reproduceable with pnfs-submit (f5219ae).
--b.
>
> --b.
>
> Dec 21 04:17:33 plink2 kernel: =================================
> Dec 21 04:17:33 plink2 kernel: [ INFO: inconsistent lock state ]
> Dec 21 04:17:33 plink2 kernel: 2.6.37-rc5-pnfs-00434-g89c4ccf #2000
> Dec 21 04:17:33 plink2 kernel: ---------------------------------
> Dec 21 04:17:33 plink2 kernel: inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
> Dec 21 04:17:33 plink2 kernel: 192.168.122.101/7686 [HC0[0]:SC0[0]:HE1:SE1] takes:
> Dec 21 04:17:33 plink2 kernel: (&(&serv->sv_cb_lock)->rlock){+.?...}, at: [<ffffffff8125adb1>] nfs4_set_callback_sessionid+0xb1/0x190
> Dec 21 04:17:33 plink2 kernel: {IN-SOFTIRQ-W} state was registered at:
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8106de76>] __lock_acquire+0xba6/0x1c20
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8106ef82>] lock_acquire+0x92/0x180
> Dec 21 04:17:33 plink2 kernel: [<ffffffff819d2cfb>] _raw_spin_lock+0x3b/0x50
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8196d280>] xs_tcp_data_recv+0x650/0xba0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818e4396>] tcp_read_sock+0x116/0x240
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8196c8e2>] xs_tcp_data_ready+0x72/0xb0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818eb37f>] tcp_data_queue+0x8cf/0xe80
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818ee766>] tcp_rcv_established+0xf6/0x6b0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818f5d9d>] tcp_v4_do_rcv+0xcd/0x250
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818f679e>] tcp_v4_rcv+0x87e/0xae0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818d51e9>] ip_local_deliver_finish+0xa9/0x270
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818d5448>] ip_local_deliver+0x98/0xa0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818d4b48>] ip_rcv_finish+0x128/0x450
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818d5075>] ip_rcv+0x205/0x2d0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818a5ee2>] __netif_receive_skb+0x2e2/0x3d0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818a6176>] netif_receive_skb+0x46/0x50
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8176f755>] virtnet_poll+0x535/0x6b0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff818a64f5>] net_rx_action+0xc5/0x260
> Dec 21 04:17:33 plink2 kernel: [<ffffffff81040ee4>] __do_softirq+0xe4/0x280
> Dec 21 04:17:33 plink2 kernel: [<ffffffff810032ea>] call_softirq+0x1a/0x50
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8100440d>] do_softirq+0x8d/0xc0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff81040185>] irq_exit+0x55/0x70
> Dec 21 04:17:33 plink2 kernel: [<ffffffff819da8f3>] do_IRQ+0x63/0xd0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff819d3cd3>] ret_from_intr+0x0/0xe
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8100176b>] cpu_idle+0x6b/0x120
> Dec 21 04:17:33 plink2 kernel: [<ffffffff819bcaaf>] rest_init+0xcf/0xe0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff81ed6c08>] start_kernel+0x358/0x363
> Dec 21 04:17:33 plink2 kernel: [<ffffffff81ed6321>] x86_64_start_reservations+0x131/0x135
> Dec 21 04:17:33 plink2 kernel: [<ffffffff81ed6417>] x86_64_start_kernel+0xf2/0xf9
> Dec 21 04:17:33 plink2 kernel: irq event stamp: 187
> Dec 21 04:17:33 plink2 kernel: hardirqs last enabled at (187): [<ffffffff810e5585>] kmem_cache_alloc_notrace+0x125/0x1b0
> Dec 21 04:17:33 plink2 kernel: hardirqs last disabled at (186): [<ffffffff810e54e7>] kmem_cache_alloc_notrace+0x87/0x1b0
> Dec 21 04:17:33 plink2 kernel: softirqs last enabled at (176): [<ffffffff8196e713>] rpc_wake_up_next+0x103/0x1e0
> Dec 21 04:17:33 plink2 kernel: softirqs last disabled at (174): [<ffffffff819d2fd6>] _raw_spin_lock_bh+0x16/0x50
> Dec 21 04:17:33 plink2 kernel:
> Dec 21 04:17:33 plink2 kernel: other info that might help us debug this:
> Dec 21 04:17:33 plink2 kernel: no locks held by 192.168.122.101/7686.
> Dec 21 04:17:33 plink2 kernel:
> Dec 21 04:17:33 plink2 kernel: stack backtrace:
> Dec 21 04:17:33 plink2 kernel: Pid: 7686, comm: 192.168.122.101 Not tainted 2.6.37-rc5-pnfs-00434-g89c4ccf #2000
> Dec 21 04:17:33 plink2 kernel: Call Trace:
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8106b2d2>] print_usage_bug+0x182/0x1d0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8106b73b>] mark_lock+0x41b/0x630
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8106deec>] __lock_acquire+0xc1c/0x1c20
> Dec 21 04:17:33 plink2 kernel: [<ffffffff810b2107>] ? mempool_free_slab+0x17/0x20
> Dec 21 04:17:33 plink2 kernel: [<ffffffff810b21bd>] ? mempool_free+0x8d/0xa0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8196d8b0>] ? rpc_free_task+0x50/0x80
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8106ef82>] lock_acquire+0x92/0x180
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8125adb1>] ? nfs4_set_callback_sessionid+0xb1/0x190
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8125ad6c>] ? nfs4_set_callback_sessionid+0x6c/0x190
> Dec 21 04:17:33 plink2 kernel: [<ffffffff810314d1>] ? get_parent_ip+0x11/0x50
> Dec 21 04:17:33 plink2 kernel: [<ffffffff819d2cfb>] _raw_spin_lock+0x3b/0x50
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8125adb1>] ? nfs4_set_callback_sessionid+0xb1/0x190
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8125adb1>] nfs4_set_callback_sessionid+0xb1/0x190
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8124a78f>] ? nfs4_proc_create_session+0x15f/0x210
> Dec 21 04:17:33 plink2 kernel: [<ffffffff81257c37>] nfs41_init_clientid+0x67/0xf0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8125731d>] nfs4_run_state_manager+0x27d/0x5a0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff812570a0>] ? nfs4_run_state_manager+0x0/0x5a0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8105ab56>] kthread+0x96/0xa0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff810031f4>] kernel_thread_helper+0x4/0x10
> Dec 21 04:17:33 plink2 kernel: [<ffffffff81033221>] ? finish_task_switch.clone.3+0x81/0xe0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff819d3d7e>] ? restore_args+0x0/0x30
> Dec 21 04:17:33 plink2 kernel: [<ffffffff8105aac0>] ? kthread+0x0/0xa0
> Dec 21 04:17:33 plink2 kernel: [<ffffffff810031f0>] ? kernel_thread_helper+0x0/0x10
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