Public bug reported: The vdso* files are built into the kernel for loading into userspace binaries to accelerate various kernel-related operations. These files do not need to be packaged & installed for the system to operate, and indeed they aren't part of the linux-image* deb's in Ubuntu. However, tools such as systemtap (and possibly perf and oprofile; https://bugs.launchpad.net/ubuntu/+source/oprofile/+bug/295975) need them, in order to unwind user-space stacks.
In Fedora, these vdso.so's are installed with: [...] %{make} -s ARCH=$Arch INSTALL_MOD_PATH=$RPM_BUILD_ROOT vdso_install KERNELRELEASE=$KernelVer [...] so they show up under /usr/lib/modules/`uname -r`/vdso/. Please make the change to have the linux-image deb preserve & ship these .so's in the same location. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1325713 Title: need vdso*.so images installed under /lib/modules for systemtap etc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1325713/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs