diff options
author | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-16 14:19:52 -0800 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-16 14:19:52 -0800 |
commit | f37752a5fedef203decdcf6197f53b9cffa04416 (patch) | |
tree | 08512e83fba2a7ea076e85c3c4303e64337c180d /pci | |
parent | d07e9db91955bb3909a915f56e90b380c189d8fb (diff) | |
download | patches-f37752a5fedef203decdcf6197f53b9cffa04416.tar.gz |
more patches added
Diffstat (limited to 'pci')
-rw-r--r-- | pci/pci-hotplug-pci-panic-on-dlpar-add.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/pci/pci-hotplug-pci-panic-on-dlpar-add.patch b/pci/pci-hotplug-pci-panic-on-dlpar-add.patch new file mode 100644 index 0000000000000..d202adfc54603 --- /dev/null +++ b/pci/pci-hotplug-pci-panic-on-dlpar-add.patch @@ -0,0 +1,39 @@ +From linas@austin.ibm.com Mon Jan 16 14:06:03 2006 +Date: Thu, 12 Jan 2006 14:36:25 -0600 +To: Greg KH <greg@kroah.com> +Cc: Paul Mackerras <paulus@samba.org>, johnrose@austin.ibm.com +Subject: PCI Hotplug: PCI panic on dlpar add (add pci slot to running partition) +Message-ID: <20060112203625.GU26221@austin.ibm.com> +Content-Disposition: inline +From: linas@austin.ibm.com (linas) + + +Removing and then adding a PCI slot to a running partition results in +a kernel panic. The current code attempts to add iospace for an entire +root bus, which is inappropriate, and silently fails. When a pci device +tries to use the iospace, a page fault is taken, as the iospace had not +been mapped, and of course the page fault cannot be resolved. + +This only occurs for PCI adapters using pio, which may be why it hadn't +been seen earlier (this seems to have been broken for a while). +This patch has survived testing of dozens of slot add and removes. + +Signed-off-by: Linas Vepstas <linas@austin.ibm.com> +Acked-by: John Rose <johnrose@austin.ibm.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> + +--- + drivers/pci/hotplug/rpadlpar_core.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- gregkh-2.6.orig/drivers/pci/hotplug/rpadlpar_core.c ++++ gregkh-2.6/drivers/pci/hotplug/rpadlpar_core.c +@@ -152,7 +152,7 @@ static struct pci_dev *dlpar_pci_add_bus + pcibios_claim_one_bus(dev->bus); + + /* ioremap() for child bus, which may or may not succeed */ +- (void) remap_bus_range(dev->bus); ++ remap_bus_range(dev->subordinate); + + /* Add new devices to global lists. Register in proc, sysfs. */ + pci_bus_add_devices(phb->bus); |