Homebrew crash random?

cooleyes · Post by **cooleyes** » Wed Apr 04, 2007 10:24 pm

a homebrew crash random.
it didn't crash on my psp box,
but it crash on someone psp box random.

I have the exception details:

Exception - Address load/inst fetch
EPC - 08B212E8
Cause - 00000010
Status - 20008602
BadVAddr - 0000084A
zr:00000000 at:08CC0000 v0:00000000 v1:00000250
a0:08C290A0 a1:00080000 a2:CF2957FF a3:0000004C
t0:FFFFFFA0 t1:0000004E t2:08C28E38 t3:08C29090
t4:08C28E30 t5:0000000A t6:B0000000 t7:00000007
s0:00000846 s1:000002B0 s2:08C28A28 s3:0001974F
s4:002625A0 s5:0001974F s6:00000001 s7:08FCF41C
t8:00000000 t9:08C28A28 k0:00000000 k1:00000000
gp:08C314D0 sp:882E6078 fp:08C28E30 ra:08B21068

but I can't find out why... :(

Mihawk · Post by **Mihawk** » Wed Apr 04, 2007 10:42 pm

Code: Select all

Exception - Address load/inst fetch
...
BadVAddr - 0000084A

Looks like an alignment problem(?). You're trying to access an array or variable which is not aligned (0000084A is halfword / 16bit aligned and your program is probably trying to read/write a word / 32bit).

Or maybe another problem: I don't remember the memorymap of the PSP but is there any memory at that address?