On Wed, 30 Jan 2013, Tang Chen wrote: > > Exactly, there is a node 0 but it includes no online memory (and that > > should be the case as if it was solely hotpluggable memory) at the time of > > boot. The sysfs interfaces only get added if the memory is onlined later. > > OK, you mean you have only node1 at first and no node0 interface, right? > If so, then this patch is wrong. :) > Not usually unless I modify my SRAT or I start pulling DIMMs, but yes, I've booted the kernel many times in the past with no node 0 online. As far as I know, there's no special casing that is needed for node 0 to assume it's online and I've tried to fix up places where that assumption has been made. I'm sure that node_online_map must include at least one online node, obviously, but there should be no requirement that it be node 0. > But you mean physical address 0x0 is on your node1, right? Otherwise, how > could > the kernel be loaded ? > Yes, the online pxms all point to nodes that do not have the node id of 0. Is it possible to try earlyprintk and get a serial console connected or reproduce it locally to find out where the problem is? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>