On Tue, 19 Apr 2011, James Bottomley wrote: > On Tue, 2011-04-19 at 20:05 +0300, Pekka Enberg wrote: > > > It seems to be a random intermittent mm crash because the next reboot > > > crashed with the same trace but after the fsck had completed and the > > > third came up to the login prompt. > > > > Looks like a genuine SLUB problem on parisc. Christoph? > > Looking through the slub code, it seems to be making invalid > assumptions. All of the node stuff is dependent on CONFIG_NUMA. > However, we're CONFIG_DISCONTIGMEM (with CONFIG_NUMA not set): on the > machines I and Dave Anglin have, our physical memory ranges are 0-1GB > and 64-65GB, so I think slub crashes when we get a page from the high > memory range ... because it's not expecting a non-zero node number. Right !NUMA systems only have node 0. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>