On 04/02/14 11:44, Mel Gorman wrote: > Steven Noonan forwarded a users report where they had a problem starting > vsftpd on a Xen paravirtualized guest, with this in dmesg: > [...] > > The issue could not be reproduced under an HVM instance with the same kernel, > so it appears to be exclusive to paravirtual Xen guests. He bisected the > problem to commit 1667918b (mm: numa: clear numa hinting information on > mprotect) that was also included in 3.12-stable. > > The problem was related to how xen translates ptes because it was not > accounting for the _PAGE_NUMA bit. This patch splits pte_present to add > a pteval_present helper for use by xen so both bare metal and xen use > the same code when checking if a PTE is present. Reviewed-by: David Vrabel <david.vrabel@xxxxxxxxxx> Thanks. David -- 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>