Geert,
On Oct 3, 2012, at 10:00 PM, Geert Uytterhoeven wrote:
>> I'm still looking for the conditions it takes to have something like
>> show_registers() in arch/m68k/kernel/traps.c called when the trap occurs.
>
> The registers are only printed for exceptions caused in kernel mode.
Is this a difference between uClinux and Linux?
I have worked on bugs in IBM's J9 JVM on ARM Linux (MontaVista 2.4 kernel)
which resulted in register and stack dumps of user code (the JVM) to the
console and /var/log/messages for access violations (illegal instruction
fetch). Like you say, I originally thought those must have been kernel traps.
But, they were not followed by an Oops. I tracked down the kernel code that
was printing the messages and convinced myself that the fault was actually
occurring in user mode, not kernel mode -- which made much more sense for a JVM.
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 --
> ge...@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like
> that.
> -- Linus Torvalds
Larry Baker
US Geological Survey
650-329-5608
ba...@usgs.gov
_______________________________________________
uClinux-dev mailing list
uClinux-dev@uclinux.org
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
This message was resent by uclinux-dev@uclinux.org
To unsubscribe see:
http://mailman.uclinux.org/mailman/options/uclinux-dev
