Am Freitag, den 16.02.2007, 13:37 +0100 schrieb rflores: > Hi, > > I can simulate the uClinux image.bin in Keil Software Environment, > the disassembled code in the last mail is from this environment. > > In the Makefile of the linker The TEXTADDR is fixed at 0x02024000, > > In the make menuconfig the RAM is fixed at 0x02200000 with length of > 0x400000 and the flash is fixed at 0x01010000 with length of 0x190000 > (reserved 0x10000 for bootloader 0x01000000-0x1010000). > > In my board the result is the same as the one of my simulation. > > The kernel crashes at __wake_up function, at the addresses > > Data Abort: ARM Instruction at 022165B0H, Memory Access at E59FF014H > Data Abort: ARM Instruction at 02216630H, Memory Access at E59FF018H > > Where is the source code of __wake_up ???? > > In this instruction the first time R4 points to 0x0000000 reset > vector and in the second time R4 contains the instruction located at > R0, > and crashes because tries to access at address E59FF014 but this is code > instruction. > > 0x022165B0 E5140004 LDR R0,[R4,#-0x0004] > > The other data abort is a similar case. > > Any idea? I'm very very blocked in this point. > > Thanks
do you see any output of printk? If the printk output isn't working for some reason, you can try to use the functions in arch/armnommu/kernel/debug.c to write messages into a reserved memory space, and read that out later by JTAG. You can reduce your memory size to make space at the top of ram, so that you use as a buffer. Although it's a very rude hack, it can be incredibly helpful until the serial console is working. You have to call at91_debug_init() first. You can put at91_debug_putn(...) into the printk function so that the whole printk output is placed into the memory buffer, or place at91_debug_str(..) calls into the source. Regards, Erwin _______________________________________________ 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
