Hello Hackers,
this is a following to the thread below, but i didnt wanna occupy it so
i start a new one.
http://os.inf.tu-dresden.de/pipermail/l4-hackers/2014/007049.html
http://os.inf.tu-dresden.de/pipermail/l4-hackers/2014/007050.html
This usually happens when you try to access an address with no memory
mapped. From the address it looks like you are accessing an address
right below your stack, i.e., you are exceeding L4Re's default stack
size. Most likely you have a function with a large buffer on the stack
or you are recursing very deeply?
Actually not.
There is a tiny buffer (4096 Bytes), and one function calles itself
recursively one time.
If that does not help, try increasing L4Re's default stack
size for your application using the L4RE_ELF_AUX_ELEM_T macro defined
in l4/re/elf_aux.h. For this, place something like this anywhere in
your compilation unit:
#include <l4/re/elf_aux.h>
L4RE_ELF_AUX_ELEM_T(l4re_elf_aux_mword_t, stack_size,
L4RE_ELF_AUX_T_STACK_SIZE, 65536);
Didn't work.
I even doubled the size.
There is just a tiny difference in the Error Message, which most likely
comes from the extra code.
before:
L4Re[rm]: unhandled write page fault @7ffff300 pc=15c7a8
now:
L4Re[rm]: unhandled write page fault @7ffff2e0 pc=15c7a8
you might want to use standard binutils (e.g., objdump) on your binary
to find out what instruction is at the respective PC and map this to
whatever function it belongs to in your code.
I only have a pc=115c7a8, but since i start from 0x01000000, i guess
that right?
115c7a8: e28cca13 add ip, ip, #77824 ; 0x13000
I couldn't find an image with debug information, so i dont know what
C-code this belongs to.
Thanks,
ba_f
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