[PATCH] x86_64: make trap information available to die notification handlers
This adjusts things so that handlers of the die() notifier will have
sufficient information about the trap currently being handled. It also
adjusts the notify_die() prototype to (again) match that of i386.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 3a63707..21d1596 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -222,10 +222,15 @@
unsigned long error_code)
{
unsigned long flags = oops_begin();
+ struct task_struct *tsk;
printk(KERN_ALERT "%s: Corrupted page table at address %lx\n",
current->comm, address);
dump_pagetable(address);
+ tsk = current;
+ tsk->thread.cr2 = address;
+ tsk->thread.trap_no = 14;
+ tsk->thread.error_code = error_code;
__die("Bad pagetable", regs, error_code);
oops_end(flags);
do_exit(SIGKILL);
@@ -521,6 +526,9 @@
printk_address(regs->rip);
printk("\n");
dump_pagetable(address);
+ tsk->thread.cr2 = address;
+ tsk->thread.trap_no = 14;
+ tsk->thread.error_code = error_code;
__die("Oops", regs, error_code);
/* Executive summary in case the body of the oops scrolled away */
printk(KERN_EMERG "CR2: %016lx\n", address);