dmesg日志是Linux系统中用于显示内核启动信息和运行时状态的重要工具,它可以帮助用户诊断系统问题、硬件故障和驱动程序问题。以下是一些常见的dmesg日志中显示的硬件故障类型及其示例:
[ 0.000000] Memory: 8977600k/9830400k available (8192k kernel code, 131072k rwdata, 4194304k rodata, 2097152k init, 196608k bss, 262144k reserved, 0K cma-reserved)
[ 0.000000] CPU: Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (68 95 0f 00 0b fb)
[ 0.000000] ata1.00: SATA max UDMA/133 abar m2048@0xf6000000 port 0xf680 irq 45
[ 0.000000] ata1.00: failed command: READ FPDMA QUEUED
[ 0.000000] ata1.00: cmd 60/08:00:10:00:00/00:00:00:00:00/e0 tag 0 ncq dma 1024 in
[ 0.000000] res 41/40:00:10:00:00/00:00:00:00:00/e0 Emask 0x40 (media error) <F>
[ 0.000000] ata1.00: status: { DRDY ERR }
[ 0.000000] e1000e: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
[ 0.000000] e1000e 0000:00:19.0 eth0: registered PHB Device 0x1
[ 0.000000] e1000e 0000:00:19.0 eth0: Direct firmware load for e1000e-82579lm-3.2.6-napi failed with error -2
通过上述方法,系统管理员可以更加熟练地使用dmesg命令和其他相关工具,快速定位和解决硬件故障,确保系统的稳定性和安全性。