Messages in this thread | | | Subject | Re: [PATCH v3] mm: make expand_downwards symmetrical to expand_upwards | From | James Bottomley <> | Date | Tue, 19 Apr 2011 12:11:28 -0500 |
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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.
James
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