On Sun, Jun 3, 2012 at 3:17 PM, Hugh Dickins <hughd@xxxxxxxxxx> wrote: > > But another strike against that commit: I tried fixing it up to use > start_page instead of page at the end, with the worrying but safer > locking I suggested at first, with a count of how many times it went > there, and how many times it succeeded. You can't use start_page anyway, it might not be a valid page. There's a reson it does that "pfn_valid_within()", methinks. Anyway, my current plan is to apply your "mm: fix warning in __set_page_dirty_nobuffers" patch - even if it's just a harmless WARN_ON_ONCE(), and revert 5ceb9ce6fe94. Sounds like Dave hit normally hit his problem much before two hours, and it must be even longer now. Ack on that plan? Linus -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>