1、the host directly link to the storage device，by intel ixgbe NIC; between them, no switch or router. 2、the nic of the storage device suddenly become unused and then OK after a little time, this happened frequency. 3、the host printk a lot of message like these:
The kernel is SUSE 3.0.13, use slab, and the following log shows the page still have PG_slab when free_pages(). Does anyone have seen the problem? Jul 9 11:31:36 root kernel: [1042291.977565] BUG: Bad page state in process swapper pfn:00bf2 Jul 9 11:31:36 root kernel: [1042291.977568] page:ffffea0000029cf0 count:0 mapcount:0 mapping: (null) index:0x7f6d4f500 Jul 9 11:31:36 root kernel: [1042291.977571] page flags: 0x40000000000100(slab) // here is the reason Jul 9 11:31:36 root kernel: [1042291.977574] Pid: 0, comm: swapper Tainted: G B X 3.0.13-0.27-default #1 Jul 9 11:31:36 root kernel: [1042291.977577] Call Trace: Jul 9 11:31:36 root kernel: [1042291.977583] [<ffffffff810048b5>] dump_trace+0x75/0x300 Jul 9 11:31:36 root kernel: [1042291.977639] [<ffffffff8143ea0f>] dump_stack+0x69/0x6f Jul 9 11:31:36 root kernel: [1042291.977644] [<ffffffff810f53a1>] bad_page+0xb1/0x120 Jul 9 11:31:37 root kernel: [1042291.977649] [<ffffffff810f5926>] free_pages_prepare+0xe6/0x110 Jul 9 11:31:37 root kernel: [1042291.977654] [<ffffffff810f9259>] free_hot_cold_page+0x49/0x1f0 Jul 9 11:31:37 root kernel: [1042291.977660] [<ffffffff8137a3b4>] skb_release_data+0xb4/0xe0 Jul 9 11:31:37 root kernel: [1042291.977665] [<ffffffff81379e79>] __kfree_skb+0x9/0x90 Jul 9 11:31:37 root kernel: [1042291.977676] [<ffffffffa02784a9>] ixgbe_clean_tx_irq+0xa9/0x480 [ixgbe] Jul 9 11:31:37 root kernel: [1042291.977693] [<ffffffffa02788cb>] ixgbe_poll+0x4b/0x1a0 [ixgbe] Jul 9 11:31:37 root kernel: [1042291.977705] [<ffffffff81389c3a>] net_rx_action+0x10a/0x2c0 Jul 9 11:31:37 root kernel: [1042291.977711] [<ffffffff81060a1f>] __do_softirq+0xef/0x220 Jul 9 11:31:37 root kernel: [1042291.977716] [<ffffffff8144a8bc>] call_softirq+0x1c/0x30 Jul 9 11:31:37 root kernel: [1042291.978974] DWARF2 unwinder stuck at call_softirq+0x1c/0x30 Thanks, Xishi Qiu ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
