On Thu, 29 Apr 2010, Mel Gorman wrote: > There is a race between shift_arg_pages and migration that triggers this bug. > A temporary stack is setup during exec and later moved. If migration moves > a page in the temporary stack and the VMA is then removed before migration > completes, the migration PTE may not be found leading to a BUG when the > stack is faulted. A simpler solution would be to not allow migration of the temporary stack? -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>