Fix it a bit (after some cross checking with "man arch_prctl"). There were: *) typos FS/GS and back *) FS in place of FS_BASE (and the same for GS) *) the procedure used put_user on &addr, where addr was the parameter (i.e. changed its param with put_user, completely useless) rather than interpreting addr as a pointer, as requested in this case (see the man page).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[EMAIL PROTECTED]> --- linux-2.6.11-paolo/arch/um/sys-x86_64/syscalls.c | 16 ++++++++++------ 1 files changed, 10 insertions(+), 6 deletions(-) diff -puN arch/um/sys-x86_64/syscalls.c~uml-fixlet-arch-prctl arch/um/sys-x86_64/syscalls.c --- linux-2.6.11/arch/um/sys-x86_64/syscalls.c~uml-fixlet-arch-prctl 2005-03-10 17:25:56.000000000 +0100 +++ linux-2.6.11-paolo/arch/um/sys-x86_64/syscalls.c 2005-03-10 17:32:05.000000000 +0100 @@ -129,23 +129,27 @@ static long arch_prctl_tt(int code, unsi #ifdef CONFIG_MODE_SKAS +/* XXX: Must also call arch_prctl in the host, beside saving the segment bases! */ static long arch_prctl_skas(int code, unsigned long addr) { long ret = 0; switch(code){ - case ARCH_SET_GS: - current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; - break; case ARCH_SET_FS: current->thread.regs.regs.skas.regs[FS_BASE / sizeof(unsigned long)] = addr; break; + case ARCH_SET_GS: + current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; + break; case ARCH_GET_FS: - ret = put_user(current->thread.regs.regs.skas.regs[GS / sizeof(unsigned long)], &addr); + ret = put_user(current->thread.regs.regs.skas.regs[ + FS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; case ARCH_GET_GS: - ret = put_user(current->thread.regs.regs.skas.regs[FS / sizeof(unsigned \ -long)], &addr); + ret = put_user(current->thread.regs.regs.skas.regs[ + GS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; default: ret = -EINVAL; _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/