I assume sys32_syscall should only allow o32 syscalls? So the #defines being used were wrong. And MAX_SYSCALL_NO, although unused, seems to have the wrong thing in it. Any disagreement? Kip Index: arch/mips64/kernel/scall_o32.S =================================================================== RCS file: /home/cvs/linux/arch/mips64/kernel/scall_o32.S,v retrieving revision 1.48.2.26 diff -u -r1.48.2.26 scall_o32.S --- arch/mips64/kernel/scall_o32.S 7 Mar 2003 01:22:48 -0000 1.48.2.26 +++ arch/mips64/kernel/scall_o32.S 7 Mar 2003 19:26:36 -0000 @@ -23,7 +23,7 @@ #include <asm/sysmips.h> /* Highest syscall used of any syscall flavour */ -#define MAX_SYSCALL_NO __NR_Linux32 + __NR_Linux32_syscalls +#define MAX_SYSCALL_NO __NR_N32_Linux + __NR_N32_Linux_syscalls .align 5 NESTED(handle_sys, PT_SIZE, sp) @@ -263,7 +263,7 @@ LEAF(sys32_syscall) ld t0, PT_R29(sp) # user sp - sltu v0, a0, __NR_Linux + __NR_Linux_syscalls + 1 + sltu v0, a0, __NR_O32_Linux + __NR_O32_Linux_syscalls + 1 beqz v0, enosys dsll v0, a0, 3