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[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>
This commit is contained in:
Olof Johansson 2005-11-06 14:54:36 -08:00 committed by Paul Mackerras
parent 55b6332ec8
commit 723925b7b1
1 changed files with 17 additions and 0 deletions
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17
arch/powerpc/mm/fault.c
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@ -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);
}