I've run the latest upstream kernel, http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.13-rc7-trusty/ , on my Ubuntu 13.04 and the issue still exists.
uname -a: Linux ilhome 3.13.0-031300rc7-generic #201401041835 SMP Sat Jan 4 23:46:54 UTC 2014 i686 athlon i686 GNU/Linux ** Tags added: kernel-bug-exists-upstream kernel-bug-exists- upstream-v3.13-rc7 ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1264707 Title: IO limit 1.2 MB/s for 32bit ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264707/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs