VM: Use virtiofsd chroot sandbox mode on pre pidfd_open kernels #13794
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…ot sandbox mode on pre pidfd_open kernels Otherwise virtiofsd won't start on Ubuntu 18.04 generic kernels (4.15). Signed-off-by: Thomas Parrott <thomas.parrott@canonical.com>
Signed-off-by: Thomas Parrott <thomas.parrott@canonical.com>
…VirtiofsdStart Signed-off-by: Thomas Parrott <thomas.parrott@canonical.com>
Signed-off-by: Thomas Parrott <thomas.parrott@canonical.com>
mihalicyn
approved these changes
Jul 22, 2024
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Otherwise virtiofsd doesn't start and this causes VMs to hang on start up when used on Ubuntu 18.04 generic kernels (4.15) with QEMU >= 8.0 (which replaced the bundled virtiofsd with an external one written in rust which defaults to namespace sandbox mode relying on pidfd_open syscall).
Fixes #12856
Tested on Ubuntu 18.04 4.15 kernel and Ubuntu 22.04 6.5 HWE kernel.