开发环境

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开发环境

遇到一个问题，x86板卡通过PCIE外接网卡芯片82599，某一块板子过一会出现网络不通的问题，排查发现某一时刻系统出现如下异常：

[ 1250.888189] Uhhuh. NMI received for unknown reason 31 on CPU 0.
[ 1250.894247] Do you have a strange power saving mode enabled?
[ 1250.899962] Dazed and confused, but trying to continue
[ 1250.948622] ixgbe 0000:05:00.0: Adapter removed

之后，网络就不通了，相关信息如下：

[root@2aa477aa-cc3a-11e8-8c50-6c92bf992afa ~]# ethtool eth5
Settings for eth5:Supported ports: [ FIBRE ]Supported link modes:   10000baseKX4/Full 10000baseKR/Full Supported pause frame use: SymmetricSupports auto-negotiation: NoAdvertised link modes:  10000baseKX4/Full 10000baseKR/Full Advertised pause frame use: SymmetricAdvertised auto-negotiation: NoSpeed: Unknown!Duplex: Unknown! (255)Port: OtherPHYAD: 0Transceiver: externalAuto-negotiation: offSupports Wake-on: dWake-on: dCurrent message level:0x00000007 (7)drv probe linkLink detected: no

[root@2aa477aa-cc3a-11e8-8c50-6c92bf992afa ~]# lspci -s 5:0.0 -vxxx
05:00.0 Ethernet controller: Intel Corporation 82599 10 Gigabit Dual Port Network Connection (rev 01)Physical Slot: 3Flags: fast devsel, IRQ 30Memory at fbc20000 (64-bit, non-prefetchable) [disabled] [size=128K]I/O ports at d020 [disabled] [size=32]Memory at fbc44000 (64-bit, non-prefetchable) [disabled] [size=16K]Capabilities: [40] Power Management version 3Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+Capabilities: [70] MSI-X: Enable- Count=64 Masked-Capabilities: [a0] Express Endpoint, MSI 00Capabilities: [e0] Vital Product DataCapabilities: [100] Advanced Error ReportingCapabilities: [140] Device Serial Number 00-14-10-ff-ff-1e-e8-8dCapabilities: [150] Alternative Routing-ID Interpretation (ARI)Capabilities: [160] Single Root I/O Virtualization (SR-IOV)Kernel driver in use: ixgbe
00: 86 80 fc 10 00 00 10 00 01 00 00 02 10 00 80 00
10: 04 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00
20: 04 00 00 00 00 00 00 00 00 00 00 00 ff ff ff ff
30: 00 00 00 00 40 00 00 00 00 00 00 00 00 01 00 00
40: 01 50 23 48 00 20 00 00 00 00 00 00 00 00 00 00
50: 05 70 80 01 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 11 a0 3f 00 04 00 00 00 04 20 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 10 e0 02 00 c2 8c 00 10 10 28 09 00 82 d4 02 00
b0: 00 00 82 10 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 1f 00 00 00 00 00 00 00 00 00 00 00
d0: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

[root@2aa477aa-cc3a-11e8-8c50-6c92bf992afa ~]# ifconfig eth5
eth5: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500inet 10.0.0.3  netmask 255.255.255.0  broadcast 10.0.0.255ether 00:14:10:1e:e8:8d  txqueuelen 1000  (Ethernet)RX packets 0  bytes 0 (0.0 B)RX errors 8589934590  dropped 34359738360  overruns 0 frame 8589934590TX packets 1  bytes 42 (42.0 B)TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

写了一个脚本拷机：

#!/bin/bash
sleep 1500
date 1>>/opt/devicedriver/log/net.log 2>&1 &
ethtool eth5 | grep "Speed: 10000Mb/s" 1>>/opt/devicedriver/log/net.log 2>&1 &
res=$(echo $?)
echo $res
if [ $res -eq 0 ]; then
echo "reboot" 1>>/opt/devicedriver/log/net.log 2>&1 &
reboot
else
echo "don't reboot" 1>>/opt/devicedriver/log/net.log 2>&1 &
fi

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