To enable poisoning of SLUB/SLAB objects,
add the argument slub_debug= to the default
GRUB 2 command line for the Linux operating system.
To ensure that slub_debug= is added as a kernel command line
argument to newly installed kernels, add slub_debug= to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... slub_debug= ..."
Run the following command to update command line for already installed kernels:# grubby --update-kernel=ALL --args="slub_debug="