Kernel Panic: bad isr 0

TC Lewis tfox at dimension-4.dnsalias.net
Sat Nov 22 18:34:26 PST 2003


:panic: bad isr 0
:Debugger("panic")
:Stopped at      Debugger+0x34: movb     $0,in_Debugger.339
:
:Debugger trace reports: (as best as I can see by my craning my neck 
around
:and reading from the monitor behind me)
:
:Debugger(c03c4d58,c0166ffb,c02b384d,c02eee78,c02e6a6c) at Debugger+0x34
:dumpmag(73252228,a2922,0,0,0) at dumpmag+0x1b9
:
:Thanks in advance ;)
:
:-TFox-

    hmm.  The backtrace isn't good.  There are three places where this
    panic can occur.  I just committed a change to net/netisr.c that
    does not fix the problem but does clarify which of those three
    places is generating the panic.
    See if you can get a better trace by trying different stack pointers
    (starting the reported stack pointer and incrementing by 4, in hex),
    e.g.
    trace 0xblahblah	where 0xblahblah starts at the reported stack 
pointer
			value.

    Also be sure that you are not looking at a double fault.  Is the 
above
    panic the initial panic message or did it occur due to another 
earlier
    panic?

					-Matt
					Matthew Dillon
					<dillon at xxxxxxxxxxxxx>
	The above appears exactly as it output from my kernel. Let's see iirc,
	the exact kernel output as follows, preceeded only by functional kernel
	output
	panic: bad isr 0
	Debugger("panic")
	Stopped at      Debugger+0x34: movb     $0,in_Debugger.339
	db>trace
	Debugger(c03c4d58,c0166ffb,c02b384d,c02eee78,c02e6a6c) at Debugger+0x34
	dumpmag(73252228,a2922,0,0,0) at dumpmag+0x1b9
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