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Reproducible panics with tulip

To: jgarzik@xxxxxxxxx
Subject: Reproducible panics with tulip
From: Alexander Nyberg <alexn@xxxxxxxxx>
Date: Fri, 18 Mar 2005 21:36:07 +0100
Cc: netdev@xxxxxxxxxxx
Sender: netdev-bounce@xxxxxxxxxxx
Using latest bk I basically mount a share over NFS and run dbench 20,
I get this very fast, changing the NIC to a rtl8139-driver based one 
makes problems go away. I don't know how earlier kernels respond to 
this as I haven't tried it before.

tulip card is:
0000:00:0f.0 Ethernet controller: Linksys NC100 Network Everywhere Fast 
Ethernet 10/100 (rev 11)



Warning: kfree_skb on hard IRQ c46c3950
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
rpciod/0: page allocation failure. order:0, mode:0x20
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c0282ffa>] find_skb+0x2a/0x80
 [<c02830fb>] netpoll_send_udp+0x2b/0x230
 [<c024207a>] write_msg+0x3a/0x50
 [<c01164a2>] __call_console_drivers+0x52/0x60
 [<c011659f>] call_console_drivers+0x7f/0x100
 [<c01169d6>] release_console_sem+0x36/0xa0
 [<c0116881>] vprintk+0x171/0x200
 [<c0116708>] printk+0x18/0x20
 [<c013012c>] __alloc_pages+0x24c/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
 [<c0103437>] dump_stack+0x17/0x20
 [<c0130131>] __alloc_pages+0x251/0x390
 [<c013263f>] kmem_getpages+0x2f/0x90
 [<c01339b0>] cache_grow+0x90/0x110
 [<c0133f6d>] cache_alloc_refill+0x17d/0x250
 [<c0134538>] __kmalloc+0x98/0xb0
 [<c0274e19>] alloc_skb+0x39/0xd0
 [<c023cafe>] tulip_rx+0x28e/0x3e0
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
Unable to handle kernel NULL pointer dereference at virtual address 00000064
 printing eip:
c023c9f7
*pde = 00000000
Oops: 0000 [#1]
DEBUG_PAGEALLOC
CPU:    0
EIP:    0060:[<c023c9f7>]    Not tainted VLI
EFLAGS: 00010246   (2.6.12-rc1)
EIP is at tulip_rx+0x187/0x3e0
eax: 00000000   ebx: c70a0220   ecx: 00000000   edx: 00000640
esi: 00000040   edi: 00000000   ebp: c46c3ba8   esp: c46c3b64
ds: 007b   es: 007b   ss: 0068
Process rpciod/0 (pid: 595, threadinfo=c46c2000 task=c4673b10)
Stack: c46c3e40 c07f5f60 c0c1f824 c46c3b90 c028ecb9 00000000 c46c3b80 00000000
       0000003c 00000000 0000000f 00000070 00000031 c70a0000 c70a0220 00009fde
       0000001e c46c3c00 c023d5a5 00000040 00000000 00000000 00000084 c4687e8c
Call Trace:
 [<c010340a>] show_stack+0x7a/0x90
 [<c0103588>] show_registers+0x148/0x1b0
 [<c010376a>] die+0xda/0x150
 [<c010eb20>] do_page_fault+0x2f0/0x625
 [<c01030a3>] error_code+0x2b/0x30
 [<c023d5a5>] tulip_interrupt+0x955/0x970
 [<c012afda>] handle_IRQ_event+0x2a/0x60
 [<c012b0b4>] __do_IRQ+0xa4/0xf0
 [<c010471c>] do_IRQ+0x1c/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c027507b>] kfree_skbmem+0xb/0x20
 [<c02750e3>] __kfree_skb+0x53/0xc0
 [<c02b8d6b>] packet_rcv_spkt+0x11b/0x200
 [<c027a47b>] netif_receive_skb+0x12b/0x190
 [<c027a55e>] process_backlog+0x7e/0x100
 [<c027a645>] net_rx_action+0x65/0xe0
 [<c011a4fa>] __do_softirq+0x7a/0x90
 [<c011a53c>] do_softirq+0x2c/0x30
 [<c0104721>] do_IRQ+0x21/0x30
 [<c0102ffe>] common_interrupt+0x1a/0x20
 [<c02afe64>] inet_sendpage+0x74/0xa0
 [<c02c592e>] xdr_sendpages+0x13e/0x220
 [<c02bdc2d>] xprt_transmit+0xcd/0x470
 [<c02bbd1b>] call_transmit+0x4b/0xb0
 [<c02bf44c>] __rpc_execute+0x5c/0x300
 [<c0123680>] worker_thread+0x150/0x1e0
 [<c0126c45>] kthread+0x95/0xa0
 [<c0100b65>] kernel_thread_helper+0x5/0x10
Code: 07 83 e8 04 66 3d ee 05 0f 8f f3 01 00 00 98 3b 05 90 d5 3f c0 89 45 dc 
0f 8c 07 01 00 00 8b 4d ec 8b 8c cb 18 01 00 00 89 4d e0 <8b> 51 64 8b b1 90 00 
00 00 85 d2 0f 85 dc 00 00 00 8b 55 dc 8b
 <0>Kernel panic - not syncing: Fatal exception in interrupt



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