09-hotplug-bugfix.patch
In the current 2.6.14-rc2-git6 kernel, performing a Dynamic LPAR Add
of a hotplug slot will crash the system, with the following (abbreviated)
stack trace:
cpu 0x3: Vector: 700 (Program Check) at [c000000053dff7f0]
pc: c0000000004f5974: .__alloc_bootmem+0x0/0xb0
lr: c0000000000258a0: .update_dn_pci_info+0x108/0x118
c0000000000257c8 .update_dn_pci_info+0x30/0x118 (unreliable)
c0000000000258fc .pci_dn_reconfig_notifier+0x4c/0x64
c000000000060754 .notifier_call_chain+0x68/0x9c
The root cause was that __init __alloc_bootmem() was called long after
boot had finished, resulting in a crash because this routine is undefined
after boot time. The patch below fixes this crash, and adds some docs to
clarify the code.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The extraction of PCI stuff from struct device_node left some false
assumptions in notifier code. As a result, dynamic add crashes when
non-PCI nodes are added. This patch fixes these assumptions.
Signed-off-by: John Rose <johnrose@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
and rename it to pci.c. This also required moving
arch/ppc64/kernel/pci.h into include/asm-powerpc (called
ppc-pci.h.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
This patch pulls the PCI-related junk out of struct device_node and
puts it in a separate structure, struct pci_dn. The device_node now
just has a void * pointer in it, which points to a struct pci_dn for
nodes that represent PCI devices. It could potentially be used in
future for device-specific data for other sorts of devices, such as
virtual I/O devices.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Linas Vepstas
John Rose
Stephen Rothwell
Paul Mackerras
Linus Torvalds