This article explains that the problem is the Transparent Huge Pages feature of the kernel: http://lwn.net/Articles/467328/
According to this, some of the fixes are in 3.2, and some in 3.3: https://bugzilla.kernel.org/show_bug.cgi?id=12309#c563 This is a horrible bug for desktop use, and for some server use as well. This should be a top priority bug. Ubuntu needs to backport the fixes or consider disabling Transparent Huge Pages in desktop kernels. Having the entire system freeze for minutes at a time and file copy operations take hours instead of minutes is entirely unacceptable behavior. As Corbet said, it's enough to make users consider the benefits of proprietary operating systems (i.e. Bug #1). P.S. Automated scripts marking critically important bugs as WONTFIX is also unacceptable behavior. ** Summary changed: - since Ubuntu karmic Filetransfer to some USB Drives got realy slow + USB file transfer causes system freezes; ops take hours instead of minutes -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/500069 Title: USB file transfer causes system freezes; ops take hours instead of minutes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/500069/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
