Loading arch/x86/kernel/traps.c +17 −9 Original line number Diff line number Diff line Loading @@ -292,8 +292,10 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code) tsk->thread.error_code = error_code; tsk->thread.trap_no = 8; /* This is always a kernel trap and never fixable (and thus must never return). */ /* * This is always a kernel trap and never fixable (and thus must * never return). */ for (;;) die(str, regs, error_code); } Loading Loading @@ -524,9 +526,11 @@ dotraplinkage void __kprobes do_int3(struct pt_regs *regs, long error_code) } #ifdef CONFIG_X86_64 /* Help handler running on IST stack to switch back to user stack for scheduling or signal handling. The actual stack switch is done in entry.S */ /* * Help handler running on IST stack to switch back to user stack * for scheduling or signal handling. The actual stack switch is done in * entry.S */ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs) { struct pt_regs *regs = eregs; Loading @@ -536,8 +540,10 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs) /* Exception from user space */ else if (user_mode(eregs)) regs = task_pt_regs(current); /* Exception from kernel and interrupts are enabled. Move to kernel process stack. */ /* * Exception from kernel and interrupts are enabled. Move to * kernel process stack. */ else if (eregs->flags & X86_EFLAGS_IF) regs = (struct pt_regs *)(eregs->sp -= sizeof(struct pt_regs)); if (eregs != regs) Loading Loading @@ -707,8 +713,10 @@ void math_error(void __user *ip) } else if (err & 0x020) { /* Precision */ info.si_code = FPE_FLTRES; } else { /* If we're using IRQ 13, or supposedly even some trap 16 implementations, it's possible we get a spurious trap... */ /* * If we're using IRQ 13, or supposedly even some trap 16 * implementations, it's possible we get a spurious trap... */ return; /* Spurious trap, no error */ } force_sig_info(SIGFPE, &info, task); Loading Loading
arch/x86/kernel/traps.c +17 −9 Original line number Diff line number Diff line Loading @@ -292,8 +292,10 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code) tsk->thread.error_code = error_code; tsk->thread.trap_no = 8; /* This is always a kernel trap and never fixable (and thus must never return). */ /* * This is always a kernel trap and never fixable (and thus must * never return). */ for (;;) die(str, regs, error_code); } Loading Loading @@ -524,9 +526,11 @@ dotraplinkage void __kprobes do_int3(struct pt_regs *regs, long error_code) } #ifdef CONFIG_X86_64 /* Help handler running on IST stack to switch back to user stack for scheduling or signal handling. The actual stack switch is done in entry.S */ /* * Help handler running on IST stack to switch back to user stack * for scheduling or signal handling. The actual stack switch is done in * entry.S */ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs) { struct pt_regs *regs = eregs; Loading @@ -536,8 +540,10 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs) /* Exception from user space */ else if (user_mode(eregs)) regs = task_pt_regs(current); /* Exception from kernel and interrupts are enabled. Move to kernel process stack. */ /* * Exception from kernel and interrupts are enabled. Move to * kernel process stack. */ else if (eregs->flags & X86_EFLAGS_IF) regs = (struct pt_regs *)(eregs->sp -= sizeof(struct pt_regs)); if (eregs != regs) Loading Loading @@ -707,8 +713,10 @@ void math_error(void __user *ip) } else if (err & 0x020) { /* Precision */ info.si_code = FPE_FLTRES; } else { /* If we're using IRQ 13, or supposedly even some trap 16 implementations, it's possible we get a spurious trap... */ /* * If we're using IRQ 13, or supposedly even some trap 16 * implementations, it's possible we get a spurious trap... */ return; /* Spurious trap, no error */ } force_sig_info(SIGFPE, &info, task); Loading