最近有台 R510 服务器。配置 NetXtreme II BCM5716 网卡，
网卡 经常 无法 down up
kernel: WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x26b/0x280() (Not tainted) kernel: Hardware name: PowerEdge R510 kernel: NETDEV WATCHDOG: eth1 (bnx2): transmit queue 4 timed out kernel: Modules linked in: tcp_diag inet_diag nfs lockd fscache auth_rpcgss nfs_acl sunrpc iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 power_meter acpi_ipmi ipmi_si ipmi_msghandler microcode iTCO_wdt iTCO_vendor_support dcdbas joydev serio_raw lpc_ich mfd_core i7core_edac edac_core sg bnx2 ext4 jbd2 mbcache sd_mod crc_t10dif wmi megaraid_sas dm_mirror dm_region_hash dm_log dm_mod [last unloaded: speedstep_lib] kernel: Pid: 0, comm: swapper Not tainted 2.6.32-573.18.1.el6.x86_64 #1 ................... bnx2 0000:01:00.1: eth1: NIC Copper Link is Down bnx2 0000:01:00.1: eth1: NIC Copper Link is Up, 1000 Mbps full duplex
从错误上来看，应该是跟 bnx2 驱动 有关。
modinfo bnx2
直接升级 bnx2 驱动 http://ldriver.qlogic.com/driver-srpms/netxtreme2/
[root@aikaiyuan ~]# wget http://ldriver.qlogic.com/driver-srpms/netxtreme2/netxtreme2-7.13.04.1-1.rhel6u5.src.rpm [root@aikaiyuan ~]# rpm -ivh netxtreme2-7.13.04.1-1.rhel6u5.src.rpm [root@aikaiyuan ~]# cd ~/rpmbuild [root@aikaiyuan rpmbuild]# rpmbuild -bb SPECS/kmp-netxtreme2.spec [root@aikaiyuan rpmbuild]# rpm -ivh ~/rpmbuild/RPMS/x86_64/kmod-netxtreme2-7.12.37.1-1.rhel6u5.x86_64.rpm
重启服务器，再次执行 modinfo bnx2 已经升级到最新版本。
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