kernel panic错误表现
kernel panic 主要有以下几个出错提示：Kernel panic-not syncing fatal exception in interruptkernel panic – not syncing: Attempted to kill the idle task!kernel panic – not syncing: killing interrupt handler!Kernel Panic – not syncing：Attempted to kill init !
kernel错误分析
查看了一下 linux的源码文件，找到相关位置kernel/panic.cNORET_TYPE void panic(const char * fmt, …){static char buf[1024];va_list args;bust_spinlocks(1);va_start(args, fmt);vsnprintf(buf, sizeof(buf), fmt, args);va_end(args);printk(KERN_EMERG “Kernel panic – not syncing: %s/n”,buf);bust_spinlocks(0);kernel/exit.cif (unlikely(in_interrupt()))panic(“Aiee, killing interrupt handler!”); #中断处理if (unlikely(!tsk->pid))panic(“Attempted to kill the idle task!”); #空任务if (unlikely(tsk->pid == 1))panic(“Attempted to kill init!”); #初始化从其他源文件和相关文档看到应该有几种原因：1、硬件问题使用了 SCSI-device 并且使用了未知命令#WDIOS_TEMPPANIC Kernel panic on temperature trip# # The SETOPTIONS call can be used to enable and disable the card# and to ask the driver to call panic if the system overheats.# # If one uses a SCSI-device of unsupported type/commands, one# immediately runs into a kernel-panic caused by Command Error. To better# understand which SCSI-command caused the problem, I extended this# specific panic-message slightly.# #read/write causes a command error from# the subsystem and this causes kernel-panic2、系统过热如果系统过热会调用panci，系统挂起#WDIOS_TEMPPANIC Kernel panic on temperature trip# # The SETOPTIONS call can be used to enable and disable the card# and to ask the driver to call panic if the system overheats.3、文件系统引起#A variety of panics and hangs with /tmp on a reiserfs filesystem#Any other panic, hang, or strange behavior## It turns out that there’s a limit of six environment variables on the# kernel command line. When that limit is reached or exceeded, argument# processing stops, which means that the ‘root=’ argument that UML# usually adds is not seen. So, the filesystem has no idea what the# root device is, so it panics.# The fix is to put less stuff on the command line. Glomming all your# setup variables into one is probably the best way to go.
，一只小狗在沙漠中旅行，找到了电线杆，结果还是憋死了，
