[uClinux-dev] Kernel Panic with Blackfin Processor
rgetz at blackfin.uclinux.org
Thu Oct 13 19:46:36 EDT 2005
>I am using kernel 2.4.20-8 with uClinux. I am using BF532 platform.
>Although I am using uClinux files, I use VisualDSP++ to compile and port
>it on the target.
Wow - VDSP? with the 2.4 kernel? You might be on your own.
Everyone else is using kernel 2.6.x (2.6.12), and compiling things with
bfin-uclinux-gcc (3.3.4). This is the configuration that everyone at
The 2.4 kernel is known to have many, many issues in it that are fixed in
the most recent 2.6 kernel.
VDSP is known to not like the main-line kernel code, so someone had to make
many, many changes to make it work. It is difficult to answer questions
about a kernel source that no one has seen.
>Exception: IRQ 0x2 entered.
>Kernel panic: unhandled IRQ or exceptions!
this is pretty basic - something in your hardware is causing a NMI (what is
tied to the NMI pin?) and there is no interrupt 2 handler in the interrupt
code in your kernel source. It doesn't know how to handle things, so it panics.
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