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: [<ffffffff810f9bdc>] ? fallback_alloc+0x16e/0x20b
warning kernel: <IRQ> [<ffffffff810f9d2a>] ? ____cache_alloc_node+0xb1/0xf8
warning kernel: [<ffffffff810ca6c8>] ? __alloc_pages_nodemask+0x6f4/0x780
warning kernel: [<ffffffff810f9716>] ? kmem_cache_alloc_node+0xdd/0x178
warning kernel: [<ffffffff812ad4c3>] ? __alloc_skb+0x59/0x159
warning kernel: [<ffffffff810f94d8>] ? kmem_getpages+0x52/0x11a
warning kernel: [<ffffffff810f9bdc>] ? fallback_alloc+0x16e/0x20b
warning kernel: [<ffffffffa022677a>] ? ixgbevf_alloc_rx_buffers+0x5e/0x18e [ixgbevf]
warning kernel: [<ffffffff810f9d2a>] ? ____cache_alloc_node+0xb1/0xf8
warning kernel: [<ffffffffa0228dda>] ? ixgbevf_poll+0x4e8/0x601 [ixgbevf]
warning kernel: [<ffffffff810f9716>] ? kmem_cache_alloc_node+0xdd/0x178
warning kernel: [<ffffffff812b7dd7>] ? net_rx_action+0xd1/0x29a
warning kernel: [<ffffffff812ad4c3>] ? __alloc_skb+0x59/0x159
warning kernel: [<ffffffff8105d694>] ? lock_timer_base+0x26/0x4c
warning kernel: [<ffffffff8105686c>] ? __do_softirq+0xd9/0x1a6
warning kernel: [<ffffffffa022677a>] ? ixgbevf_alloc_rx_buffers+0x5e/0x18e [ixgbevf]
warning kernel: [<ffffffff8100ad6c>] ? call_softirq+0x1c/0x30
warning kernel: [<ffffffffa0228d7f>] ? ixgbevf_poll+0x48d/0x601 [ixgbevf]
warning kernel: [<ffffffff8100c635>] ? do_softirq+0x5f/0xbe
warning kernel: [<ffffffff812b7dd7>] ? net_rx_action+0xd1/0x29a
warning kernel: [<ffffffff8105686c>] ? __do_softirq+0xd9/0x1a6
warning kernel: [<ffffffff81056688>] ? irq_exit+0x36/0x78
warning kernel: [<ffffffff8100ad6c>] ? call_softirq+0x1c/0x30
warning kernel: [<ffffffff8100c635>] ? do_softirq+0x5f/0xbe
warning kernel: [<ffffffff81056688>] ? irq_exit+0x36/0x78
warning kernel: [<ffffffff8100bc83>] ? do_IRQ+0xa0/0xb6
warning kernel: [<ffffffff8100bc83>] ? do_IRQ+0xa0/0xb6
warning kernel: [<ffffffff8100a593>] ? 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?
