This is a useful read only filesystem for images that is efficient and
small as it supports compression.
For many use cases, when you are writing to media, it makes more sense than
using an initramfs as it does not require RAM, and it is more suitable for
disk media than ISO.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This enables per task (IO) accounting which is useful
for monitoring IO activity and the like.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Note, on x86_64 for 4.12.9 a new kernel option,
HARDLOCKUP_CHECK_TIMESTAMP was added which defaults to enabled. It enables
a low pass filter to compensate for perf based hard lockup detection.
Added this option to the x86_64 4.12.x kernel confog file.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Note, vhost vsock is disabled on arm64 because it failed to compile.
'vhost_vq_init_access' was not defined, but with a quick check
I could not find where it was supposed to be defined.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Enable DEVPTS_MULTIPLE_INSTANCES in kernel configuration file
to avoid the devpts mounting hang issue during bootup when
running LinuxKit.
Signed-off-by: Dennis Chen <dennis.chen@arm.com>
