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Message-ID: <55A4D55A.2080903@huawei.com>
Date: Tue, 14 Jul 2015 17:24:42 +0800
From: Xishi Qiu <qiuxishi@huawei.com>
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To: zhuyj <zyjzyj2000@gmail.com>
CC: Linux MM <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>,
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	<e1000-devel@lists.sourceforge.net>
Subject: Re: [E1000-devel] bad pages when up/down network cable
References: <55A4C8F1.4000104@huawei.com> <CAD=hENdLy_K6LFE3Cm2nfxxVOhWRZWiJmKX5-EKdoBtnWP3MJQ@mail.gmail.com>
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On 2015/7/14 17:00, zhuyj wrote:

> Do you use the default ixgbe driver? or the ixgbe driver is modified by you?
> 

Yes，no modify.

Thanks,
Xishi Qiu

> On Tue, Jul 14, 2015 at 4:31 PM, Xishi Qiu <qiuxishi@huawei.com <mailto:qiuxishi@huawei.com>> wrote:
> 
>     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
> 
> 
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