Hi J. R. Okajima,
Just found a bug:
It got created due rc4 of kernel 3.0 series by this upstream commit:
devcgroup_inode_permission: take "is it a device node" checks to
inlined wrapper
http://lwn.net/Articles/448557/
I attached a working patch. Shoud go into aufs-2.1-standalone.patch
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 682fa26..215278c 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -508,7 +508,7 @@ found:
return -EPERM;
}
-EXPORT_SYMBOL_GPL(devcgroup_inode_permission);
+EXPORT_SYMBOL_GPL(__devcgroup_inode_permission);
int devcgroup_inode_mknod(int mode, dev_t dev)
{
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