diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2006-01-25 21:48:48 +1300 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-02-07 21:28:38 +1100 |
| commit | cdc3ee8f2061bafe7593bab0096a0e711408b0f9 (patch) | |
| tree | 82cd90ed8d38f27e76a06a0049660be092fdd9a4 | |
| parent | 8c20fafa8548917fdbbd95588494498dd901b375 (diff) | |
[PATCH] powerpc: Refuse to boot a kdump kernel via OF
You can't boot a kdump kernel via OF, not reliably anyway, the kernel being at
32 MB conflicts with the zImage wrapper etc. and it blows up.
It's trivial to check in prom_init though, and this is early enough that we can
actually drop back to OF where a reset-all will get you going again, which is
kinda nice. I think this should go in for 2.6.16.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 7881ec96ef1..ec7153f4d47 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -2098,6 +2098,10 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, */ prom_init_stdout(); + /* Bail if this is a kdump kernel. */ + if (PHYSICAL_START > 0) + prom_panic("Error: You can't boot a kdump kernel from OF!\n"); + /* * Check for an initrd */ |