Ubuntu
linux package

  1. Cosmic (18.10)
  2. Bug #1788603
  3. Comment #0

Comment 0 for bug 1788603

Revision history for this message
Thadeu Lima de Souza Cascardo (cascardo) wrote :

$ virsh start cosmic-i386
error: Failed to start domain cosmic-i386
error: internal error: child reported: Kernel does not provide mount namespace: Permission denied

Happens with 4.18 only, 4.17 is fine.

27013 openat(AT_FDCWD, "/proc/27012/ns/mnt", O_RDONLY) = -1 EACCES (Permission denied)

Opening a self or parent mount namespace works fine as tested with cat /proc/self/ns/mnt and cat /proc/self/$$/mnt. Still investigating.