ARM: add "8<--- cut here ---" to kernel dumps

Add a "8<--- cut here ---" marker to kernel dumps to help users cut
the dump at the right place when emailing list, rather than cutting
off the first line which gives the reason for the dump.

Signed-off-by: Russell King <[e-mail]>

arch/arm/kernel/traps.c

···
 
 #ifdef CONFIG_DEBUG_USER
 	if (user_debug & UDBG_BADABORT) {
+		pr_err("8<--- cut here ---\n");
 		pr_err("[%d] %s: bad data abort: code %d instr 0x%08lx\n",
 		       task_pid_nr(current), current->comm, code, instr);
 		dump_instr(KERN_ERR, regs);

arch/arm/mm/fault.c

···
 	 * No handler, we'll have to terminate things with extreme prejudice.
 	 */
 	bust_spinlocks(1);
+	pr_alert("8<--- cut here ---\n");
 	pr_alert("Unable to handle kernel %s at virtual address %08lx\n",
 		 (addr < PAGE_SIZE) ? "NULL pointer dereference" :
 		 "paging request", addr);
···
 #ifdef CONFIG_DEBUG_USER
 	if (((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) ||
 	    ((user_debug & UDBG_BUS)  && (sig == SIGBUS))) {
+		pr_err("8<--- cut here ---\n");
 		printk(KERN_DEBUG "%s: unhandled page fault (%d) at 0x%08lx, code 0x%03x\n",
 		       tsk->comm, sig, addr, fsr);
 		show_pte(tsk->mm, addr);
···
 	if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))
 		return;
 
+	pr_alert("8<--- cut here ---\n");
 	pr_alert("Unhandled fault: %s (0x%03x) at 0x%08lx\n",
 		inf->name, fsr, addr);
 	show_pte(current->mm, addr);