[ale] Strange kernel message

Fulton Green ale at FultonGreen.com
Fri Sep 20 14:01:46 EDT 2002


NMI="non-maskable interrupt". That's all I can remember from my MS-DOS
assembly coding days.

On Fri, Sep 20, 2002 at 01:59:17PM -0400, James P. Kinney III wrote:
> OK. I plugged through the kernel sources. traps.c generated the kernel
> log entry.
> 
> static void unknown_nmi_error(unsigned char reason, struct pt_regs *
> regs)
> {
> #ifdef CONFIG_MCA
>         /* Might actually be able to figure out what the guilty party
>         * is. */
>         if( MCA_bus ) {
>                 mca_handle_nmi();
>                 return;
>         }
> #endif
> #ifdef  CONFIG_KDB
>         (void)kdb(KDB_REASON_NMI, reason, regs);
> #endif  /* CONFIG_KDB */
>         printk("Uhhuh. NMI received for unknown reason %02x.\n",
> reason);
>         printk("Dazed and confused, but trying to continue\n");
>         printk("Do you have a strange power saving mode enabled?\n");
> }
> 
> 
> So, I'm not on an MCA bus system. Looking for what NMI is. KDB is not
> enabled. 

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