[lug] Daily system crash....

Hugh Brown hugh at math.byu.edu
Wed Feb 6 10:38:14 MST 2008


George Sexton wrote:
> 
> 
> Zan Lynx wrote:
>>
>> You need a VGA or FB console, a serial console or netconsole, all of
>> which have support for polled, no-interrupt, no-DMA output to be used
>> during a crash.
> 
> Good luck. I have a machine that's dying, and it's not sending ANYTHING 
> to the logged in console.
> 
> 
> 

The level at which the kernel logs to a console is configurable both via 
boot time parameter and via /proc/sys/kernel/printk

There's also the Magic SysRq key for mucking with the kernel when it's 
unhappy.

Hugh



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