2008/8/7 Lazy <lazy404@gmail.com>:
quoted text
> vanilla 2.6.25.13, working as a router, 4 interfaces about 100MBit/s traffic
> using e1000 and tg3 ethernet drivers
>
> it's a production machine so I basicly can't touch it now, I think
> it's triggerd by ipsec tunnel because
> before rolling this machine on production it was stress tested
> (without the tunnel) to tune the firewall,
> and there ware no BUG()'s triggerd.
>
> Aug  7 07:16:49 cisco-ng kernel: SKB BUG: Invalid truesize (412)
> len=286, sizeof(sk_buff)=156
> Aug  7 07:16:51 cisco-ng kernel: SKB BUG: Invalid truesize (284)
> len=142, sizeof(sk_buff)=156
> Aug  7 07:16:51 cisco-ng kernel: SKB BUG: Invalid truesize (284)
> len=142, sizeof(sk_buff)=156
> Aug  7 07:16:54 cisco-ng kernel: SKB BUG: Invalid truesize (284)
> len=134, sizeof(sk_buff)=156
> Aug  7 07:16:55 cisco-ng kernel: SKB BUG: Invalid truesize (284)
> len=134, sizeof(sk_buff)=156
> Aug  7 07:16:59 cisco-ng kernel: SKB BUG: Invalid truesize (284)
> len=142, sizeof(sk_buff)=156
> Aug  7 07:16:59 cisco-ng kernel: SKB BUG: Invalid truesize (284)
> len=142, sizeof(sk_buff)=156
>
> tunnel is created by setkey
> add 10.0.5.2 10.0.5.1 esp 0xxxx -m tunnel -E 3des-cbc ...
>
> Tomorrow i will try to trigger it in a test environment, any pointers
> how to get more info out of it?
> I found this http://lists.openwall.net/netdev/2008/05/06/61 will it be ok ?
with this patch i got some more info

c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
 [<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
 [<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c032b32d>] tcp_send_ack+0x2d/0xe0
 [<c0326cb7>] tcp_rcv_established+0x4c7/0x690
 [<c032e915>] tcp_v4_do_rcv+0x105/0x110
 [<c032ee2b>] tcp_v4_rcv+0x50b/0x5f0
 [<c0313244>] ip_local_deliver_finish+0x84/0x160
 [<c0313369>] ip_local_deliver+0x49/0xa0
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c011ba2d>] enqueue_task_fair+0x2d/0x30
 [<c011d442>] enqueue_task+0x12/0x30
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
 [<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
 [<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
 [<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c032b32d>] tcp_send_ack+0x2d/0xe0
 [<c0326cb7>] tcp_rcv_established+0x4c7/0x690
 [<c032e915>] tcp_v4_do_rcv+0x105/0x110
 [<c032ee2b>] tcp_v4_rcv+0x50b/0x5f0
[<c0313244>] ip_local_deliver_finish+0x84/0x160
 [<c0313369>] ip_local_deliver+0x49/0xa0
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c011ba2d>] enqueue_task_fair+0x2d/0x30
 [<c011d442>] enqueue_task+0x12/0x30
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
[<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
 [<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c032b32d>] tcp_send_ack+0x2d/0xe0
 [<c0326cb7>] tcp_rcv_established+0x4c7/0x690
 [<c032e915>] tcp_v4_do_rcv+0x105/0x110
 [<c032ee2b>] tcp_v4_rcv+0x50b/0x5f0
 [<c0313244>] ip_local_deliver_finish+0x84/0x160
 [<c0313369>] ip_local_deliver+0x49/0xa0
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c013b710>] getnstimeofday+0x40/0x120
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c02ef2bd>] __alloc_skb+0xdd/0x120
 [<c02ef322>] __netdev_alloc_skb+0x22/0x50
 [<f88c4ea5>] e1000_clean_rx_irq+0x3f5/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
 [<c0129014>] __do_softirq+0xd4/0xf0
 [<c0129068>] do_softirq+0x38/0x40
 [<c01055ae>] do_IRQ+0x3e/0x80
 [<c010380b>] common_interrupt+0x23/0x28
 [<c010142c>] mwait_idle_with_hints+0x3c/0x50
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c01347dc>] __kernel_text_address+0x1c/0x30
 [<c0313827>] ip_rcv+0x167/0x280
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c013b710>] getnstimeofday+0x40/0x120
 [<c0313827>] ip_rcv+0x167/0x280
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c013b710>] getnstimeofday+0x40/0x120
 [<c0313827>] ip_rcv+0x167/0x280
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
SKB BUG: Invalid truesize (340) size=468, sizeof(sk_buff)=212
last reallocate at:
 [<c010a9ac>] save_stack_trace+0x2c/0x50
 [<c02efb25>] pskb_expand_head+0x85/0x1a0
 [<c0314850>] ip_forward+0x120/0x330
 [<c03134bb>] ip_rcv_finish+0xfb/0x300
 [<c013b710>] getnstimeofday+0x40/0x120
 [<c0313827>] ip_rcv+0x167/0x280
 [<c02f66d9>] netif_receive_skb+0x249/0x300
 [<f88c4c5c>] e1000_clean_rx_irq+0x1ac/0x500 [e1000]
 [<f88c468d>] e1000_clean+0x3d/0xc0 [e1000]
 [<c02f69ee>] net_rx_action+0x14e/0x1a0
device eth21 left promiscuous mode

the funny thing is that it happens only with tcpdump active on this interface

kernel 2.6.25.17, ipsec tunnel, smal packets < 97 bytes are trigger
thiese errors, kernel runs without problems,
I observed same thing on e100 network driver

 --
Lazy
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