This bug still exists in even 4.4.0-xx x86 kernels, but the slow HDD writes disappears after I changed to amd64 kernel of the same versions even the userland is still 32-bit.
I did like as below. sudo dpkg --add-architecture amd64 sudo apt-get update sudo apt-get install linux-image-generic:amd64 The virtualbox and nvidia modules compiled by DKMS become unusable though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1333294 Title: 32-bit kernel HDD slow write speed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-lts-trusty/+bug/1333294/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
