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JLi90
Beginner
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What will trigger 82599 VF known issue "Rx Page Allocation Errors"

Hi,

I got this logged in my kern.log:

warning kernel: swapper: page allocation failure. order:0, mode:0x20

 

...

 

warning kernel: Call Trace:

 

warning kernel: [] ? fallback_alloc+0x16e/0x20b

 

warning kernel: [] ? ____cache_alloc_node+0xb1/0xf8

 

warning kernel: [] ? __alloc_pages_nodemask+0x6f4/0x780

 

warning kernel: [] ? kmem_cache_alloc_node+0xdd/0x178

 

warning kernel: [] ? __alloc_skb+0x59/0x159

 

warning kernel: [] ? kmem_getpages+0x52/0x11a

 

warning kernel: [] ? fallback_alloc+0x16e/0x20b

 

warning kernel: [] ? ixgbevf_alloc_rx_buffers+0x5e/0x18e [ixgbevf]

 

warning kernel: [] ? ____cache_alloc_node+0xb1/0xf8

 

warning kernel: [] ? ixgbevf_poll+0x4e8/0x601 [ixgbevf]

 

warning kernel: [] ? kmem_cache_alloc_node+0xdd/0x178

 

warning kernel: [] ? net_rx_action+0xd1/0x29a

 

warning kernel: [] ? __alloc_skb+0x59/0x159

 

warning kernel: [] ? lock_timer_base+0x26/0x4c

 

warning kernel: [] ? __do_softirq+0xd9/0x1a6

 

warning kernel: [] ? ixgbevf_alloc_rx_buffers+0x5e/0x18e [ixgbevf]

 

warning kernel: [] ? call_softirq+0x1c/0x30

 

warning kernel: [] ? ixgbevf_poll+0x48d/0x601 [ixgbevf]

 

warning kernel: [] ? do_softirq+0x5f/0xbe

 

warning kernel: [] ? net_rx_action+0xd1/0x29a

 

warning kernel: [] ? __do_softirq+0xd9/0x1a6

 

warning kernel: [] ? irq_exit+0x36/0x78

 

warning kernel: [] ? call_softirq+0x1c/0x30

 

warning kernel: [] ? do_softirq+0x5f/0xbe

 

warning kernel: [] ? irq_exit+0x36/0x78

 

warning kernel: [] ? do_IRQ+0xa0/0xb6

 

warning kernel: [] ? do_IRQ+0xa0/0xb6

 

warning kernel: [] ? ret_from_intr+0x0/0x11

 

...

After a while, the system crashed for out-of-memory (kernel panics). It only happened on some servers (low end Intel Xeon) but not on the others. So I got 3 questions for you guys:

- Is this exactly the VF known issue mentioned in the subject?

- If yes, what will trigger it?

- Why the memory was used up when this happened?

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