diff options
Diffstat (limited to 'arch/x86/kernel/process_32.c')
| -rw-r--r-- | arch/x86/kernel/process_32.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 4cf79567cdab..075580b35682 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -58,6 +58,7 @@ #include <asm/idle.h> #include <asm/syscalls.h> #include <asm/ds.h> +#include <asm/debugreg.h> asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); @@ -134,7 +135,7 @@ void __show_regs(struct pt_regs *regs, int all) ss = regs->ss & 0xffff; gs = get_user_gs(regs); } else { - sp = (unsigned long) (®s->sp); + sp = kernel_stack_pointer(regs); savesegment(ss, ss); savesegment(gs, gs); } @@ -187,7 +188,7 @@ void __show_regs(struct pt_regs *regs, int all) void show_regs(struct pt_regs *regs) { - __show_regs(regs, 1); + show_registers(regs); show_trace(NULL, regs, ®s->sp, regs->bp); } @@ -259,7 +260,12 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, task_user_gs(p) = get_user_gs(regs); + p->thread.io_bitmap_ptr = NULL; tsk = current; + err = -ENOMEM; + + memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps)); + if (unlikely(test_tsk_thread_flag(tsk, TIF_IO_BITMAP))) { p->thread.io_bitmap_ptr = kmemdup(tsk->thread.io_bitmap_ptr, IO_BITMAP_BYTES, GFP_KERNEL); |