It turns out the issue also exists in the latest mainline kernel! The fix "x86, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE" is there, but a later patch "x86/mm: Fix slow_virt_to_phys() to handle large PAT bit" (https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34437e67a6727885bdf6cbfd8441b1ac43a1ee65) actually removed the fix unintentionally, so we have the regression...
I have made a new fix and post it to LKML just now (sta...@vger.kernel.org was Cc-ed): http://marc.info/?l=linux-kernel&m=145638841908383&w=2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1549601 Title: [Hyper-V] x86,pageattr: prevent overflow in slow_virt_to_phys() for X86_PAE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1549601/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs