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authorOlof Johansson <olof@lixom.net>2005-11-06 14:54:36 -0800
committerPaul Mackerras <paulus@samba.org>2005-11-07 12:37:28 +1100
commit723925b7b138cecb29d76169d20149255d354a7a (patch)
tree3eea7faa1c23c050c0a3d0ff173ee63f77307888 /arch
parent55b6332ec89a5fc65d1287708cfd9f06f7a88b90 (diff)
[PATCH] powerpc: Nicer printing of address at oops
Add nicer printing of faulting address on unresolvable kernel faults. Makes life a little easier for those who don't know how to decode our register contents at oops time. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/mm/fault.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 841d8b6323a..93d4fbfdb72 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -389,5 +389,22 @@ void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
}
/* kernel has accessed a bad area */
+
+ printk(KERN_ALERT "Unable to handle kernel paging request for ");
+ switch (regs->trap) {
+ case 0x300:
+ case 0x380:
+ printk("data at address 0x%08lx\n", regs->dar);
+ break;
+ case 0x400:
+ case 0x480:
+ printk("instruction fetch\n");
+ break;
+ default:
+ printk("unknown fault\n");
+ }
+ printk(KERN_ALERT "Faulting instruction address: 0x%08lx\n",
+ regs->nip);
+
die("Kernel access of bad area", regs, sig);
}