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user4234
Asked: 2012-12-23 11:11:20 +0800 CST

我的服务器崩溃了。这是日志。可能会发生什么？

  • 772

当事情崩溃时，这是 /var/messages 的内容：

Dec 21 19:47:45 localhost kernel: ------------[ cut here ]------------
Dec 21 19:47:45 localhost kernel: WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x26d/0x280() (Not tainted)
Dec 21 19:47:45 localhost kernel: Hardware name: KGP(M)E-D16
Dec 21 19:47:45 localhost kernel: NETDEV WATCHDOG: eth0 (e1000e): transmit queue 0 timed out
Dec 21 19:47:45 localhost kernel: Modules linked in: ipt_REDIRECT iptable_nat nf_nat xt_multiport xt_owner ext3 jbd nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables autofs4 sunrpc cpufreq_ondemand powernow_k8 freq_table mperf ipv6 e1000e microcode serio_raw k10temp edac_core edac_mce_amd i2c_piix4 i2c_core sg shpchp ext4 mbcache jbd2 sd_mod crc_t10dif ata_generic pata_acpi pata_atiixp ahci dm_mirror dm_region_hash dm_log dm_mod [last unloaded: nf_conntrack]
Dec 21 19:47:45 localhost kernel: Pid: 0, comm: swapper Not tainted 2.6.32-220.el6.x86_64 #1
Dec 21 19:47:45 localhost kernel: Call Trace:
Dec 21 19:47:45 localhost kernel: <IRQ>  [<ffffffff81069b77>] ? warn_slowpath_common+0x87/0xc0
Dec 21 19:47:45 localhost kernel: [<ffffffff81069c66>] ? warn_slowpath_fmt+0x46/0x50
Dec 21 19:47:45 localhost kernel: [<ffffffff8144a54d>] ? dev_watchdog+0x26d/0x280
Dec 21 19:47:45 localhost kernel: [<ffffffff8144a2e0>] ? dev_watchdog+0x0/0x280
Dec 21 19:47:45 localhost kernel: [<ffffffff8107c957>] ? run_timer_softirq+0x197/0x340
Dec 21 19:47:45 localhost kernel: [<ffffffff810a0b70>] ? tick_sched_timer+0x0/0xc0
Dec 21 19:47:45 localhost kernel: [<ffffffff8102ad2d>] ? lapic_next_event+0x1d/0x30
Dec 21 19:47:45 localhost kernel: [<ffffffff81072161>] ? __do_softirq+0xc1/0x1d0
Dec 21 19:47:45 localhost kernel: [<ffffffff81095770>] ? hrtimer_interrupt+0x140/0x250
Dec 21 19:47:45 localhost kernel: [<ffffffff8100c24c>] ? call_softirq+0x1c/0x30
Dec 21 19:47:45 localhost kernel: [<ffffffff8100de85>] ? do_softirq+0x65/0xa0
Dec 21 19:47:45 localhost kernel: [<ffffffff81071f45>] ? irq_exit+0x85/0x90
Dec 21 19:47:45 localhost kernel: [<ffffffff814f4de0>] ? smp_apic_timer_interrupt+0x70/0x9b
Dec 21 19:47:45 localhost kernel: [<ffffffff8100bc13>] ? apic_timer_interrupt+0x13/0x20
Dec 21 19:47:45 localhost kernel: <EOI>  [<ffffffff810375ab>] ? native_safe_halt+0xb/0x10
Dec 21 19:47:45 localhost kernel: [<ffffffff810145dd>] ? default_idle+0x4d/0xb0
Dec 21 19:47:45 localhost kernel: [<ffffffff81009e06>] ? cpu_idle+0xb6/0x110
Dec 21 19:47:45 localhost kernel: [<ffffffff814d411a>] ? rest_init+0x7a/0x80
Dec 21 19:47:45 localhost kernel: [<ffffffff81c1ff76>] ? start_kernel+0x424/0x430
Dec 21 19:47:45 localhost kernel: [<ffffffff81c1f33a>] ? x86_64_start_reservations+0x125/0x129
Dec 21 19:47:45 localhost kernel: [<ffffffff81c1f438>] ? x86_64_start_kernel+0xfa/0x109
Dec 21 19:47:45 localhost kernel: ---[ end trace 1c035fe603219926 ]---
Dec 21 19:47:45 localhost kernel: e1000e 0000:03:00.0: eth0: Reset adapter
Dec 21 19:47:46 localhost abrt-dump-oops: Reported 1 kernel oopses to Abrt
Dec 21 19:47:46 localhost abrtd: Directory 'oops-2012-12-21-19:47:46-12170-0' creation detected
Dec 21 19:47:47 localhost abrtd: Can't open file '/var/spool/abrt/oops-2012-12-21-19:47:46-12170-0/uid': No such file or directory
Dec 21 19:47:54 localhost kernel: Bridge firewalling registered
Dec 21 19:49:05 localhost abrtd: Sending an email...
Dec 21 19:49:05 localhost abrtd: Email was sent to: root@localhost
Dec 21 19:49:05 localhost abrtd: New problem directory /var/spool/abrt/oops-2012-12-21-19:47:46-12170-0, processing
Dec 21 19:49:05 localhost abrtd: Can't open file '/var/spool/abrt/oops-2012-12-21-19:47:46-12170-0/uid': No such file or directory

看起来像一个名为 KGP(M)E-D16 stop 之类的硬件。在谷歌上查看显示它是主板。

我还应该检查什么？我已经将此报告给 fdcservers.net。

他们声称这是内核错误。而不是硬件问题。什么内核错误？为什么会导致服务器崩溃？我应该怎么办？

检查网卡的驱动程序我得到了这个

root@host [/var/log]# ethtool -i eth0
driver: e1000e
version: 1.9.5-k
firmware-version: 1.8-0
bus-info: 0000:03:00.0
root@host [/var/log]# ethtool -i eth1
driver: e1000e
version: 1.9.5-k
firmware-version: 1.8-0
bus-info: 0000:02:00.0
root@host [/var/log]# ethtool -i eth2
Cannot get driver information: No such device

话虽如此，

硬件名称：KGP(M)E-D16是华硕主板。此外，如果您搜索硬件名称：KGP(M)E-D16，此页面排名前 3。

linux

1 个回答

  1. Best Answer

    问题就像它自己陈述的那样。其中第 261 行net/sched/sch_generic.c是通用数据包调度程序例程。

    恐慌本身就在这里

    Dec 21 19:47:45 localhost kernel: [<ffffffff8144a54d>] ? dev_watchdog+0x26d/0x280

    所以，网络设备超时了。正如源代码所说，一些队列被阻塞并且计时器到期。它应该将设备保持一定的特定时间，但计数器结束了。这是代码的相关部分。

    if (!mod_timer(&dev->watchdog_timer,
258 round_jiffies(jiffies +
259 dev->watchdog_timeo)))
260 dev_hold(dev);

    您会看到有一个看门狗定时器，计数器以 jiffies 为单位进行测量。当这个计时器结束时，它会发出警告。

    这与您的网卡或驱动程序有关。除非他们能证明这一点，否则我会立即拒绝内核错误理论。并且没有办法告诉它，除非有人报告了确切的调用跟踪或者英特尔知道这个跟踪并且它发生在相同的硬件、相同的驱动程序、相同的固件上。简而言之，如果不检查内核转储或 vmcore，没有经验的人会说这是内核错误。处理计时器的内核部分是精心设计的，e1000 不是一个难以处理的驱动程序。

    我不想贬低你们的服务员，但这是我的看法。值得检查您的ethtool -S ethX输出以查看是否有任何丢弃、超限、超时等。

    • 12

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