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Fix footnote formatting
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‎README.md

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@@ -259,59 +259,55 @@ This table provides a high-level comparison of RunCVM and Kata across various fe
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| **virtiofsd** | Runs `virtiofsd` in container namespace | Unknown |
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[^1]: `docker network create --scope=local testnet >/dev/null && docker run --name=test --rm --runtime=kata --network=testnet --entrypoint=/bin/ash alpine -c 'for n in test google.com 8.8.8.8; do echo "ping $n ..."; ping -q -c 8 -i 0.5 $n; done'; docker network rm testnet >/dev/null` succeeds on `runc` and `runcvm` but at time of writing (2023-12-31) the DNS lookups needed fail on `kata`.
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```
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$ docker network create --scope=local testnet >/dev/null && docker run --name=test --rm -it --runtime=kata --network=testnet --entrypoint=/bin/ash alpine -c 'for n in test google.com 8.8.8.8; do echo "ping $n ..."; ping -q -c 8 -i 0.5 $n; done'; docker network rm testnet >/dev/null
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ping test ...
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ping: bad address 'test'
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ping google.com ...
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ping: bad address 'google.com'
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ping 8.8.8.8 ...
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PING 8.8.8.8 (8.8.8.8): 56 data bytes
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--- 8.8.8.8 ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 0.911/1.716/3.123 ms
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```
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```
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$ docker network create --scope=local testnet >/dev/null && docker run --name=test --rm -it --runtime=runcvm --network=testnet --entrypoint=/bin/ash alpine -c 'for n in test google.com 8.8.8.8; do echo "ping $n ..."; ping -q -c 8 -i 0.5 $n; done'; docker network rm testnet >/dev/null
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ping test ...
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PING test (172.25.8.2): 56 data bytes
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--- test ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 0.033/0.085/0.137 ms
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ping google.com ...
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PING google.com (172.217.16.238): 56 data bytes
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--- google.com ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 8.221/8.398/9.017 ms
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ping 8.8.8.8 ...
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PING 8.8.8.8 (8.8.8.8): 56 data bytes
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--- 8.8.8.8 ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 1.074/1.491/1.801 ms
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```
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```
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$ docker network create --scope=local testnet >/dev/null && docker run --name=test --rm -it --runtime=kata --network=testnet --entrypoint=/bin/ash alpine -c 'for n in test google.com 8.8.8.8; do echo "ping $n ..."; ping -q -c 8 -i 0.5 $n; done'; docker network rm testnet >/dev/null
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ping test ...
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ping: bad address 'test'
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ping google.com ...
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ping: bad address 'google.com'
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ping 8.8.8.8 ...
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PING 8.8.8.8 (8.8.8.8): 56 data bytes
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--- 8.8.8.8 ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 0.911/1.716/3.123 ms
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$ docker network create --scope=local testnet >/dev/null && docker run --name=test --rm -it --runtime=runcvm --network=testnet --entrypoint=/bin/ash alpine -c 'for n in test google.com 8.8.8.8; do echo "ping $n ..."; ping -q -c 8 -i 0.5 $n; done'; docker network rm testnet >/dev/null
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ping test ...
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PING test (172.25.8.2): 56 data bytes
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--- test ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 0.033/0.085/0.137 ms
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ping google.com ...
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PING google.com (172.217.16.238): 56 data bytes
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--- google.com ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 8.221/8.398/9.017 ms
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ping 8.8.8.8 ...
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PING 8.8.8.8 (8.8.8.8): 56 data bytes
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--- 8.8.8.8 ping statistics ---
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8 packets transmitted, 8 packets received, 0% packet loss
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round-trip min/avg/max = 1.074/1.491/1.801 ms
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```
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[^2]: `docker run --rm -it --runtime=kata --entrypoint=/bin/ash -m 500m alpine -c 'free -h; df -h /dev/shm'`
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```
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$ docker run --rm --runtime=kata --name=test -m 2g --env=RUNCVM_KERNEL_DEBUG=1 -it alpine ash -c 'free -h'
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total used free shared buff/cache available
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Mem: 3.9G 94.4M 3.8G 0 3.7M 3.8G
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Swap: 0 0 0
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$ docker run --rm --runtime=kata --name=test -m 3g --env=RUNCVM_KERNEL_DEBUG=1 -it alpine ash -c 'free -h'
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total used free shared buff/cache available
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Mem: 4.9G 107.0M 4.8G 0 3.9M 4.8G
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Swap: 0 0 0
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$ docker run --rm --runtime=kata --name=test -m 0g --env=RUNCVM_KERNEL_DEBUG=1 -it alpine ash -c 'free -h'
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total used free shared buff/cache available
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Mem: 1.9G 58.8M 1.9G 0 3.4M 1.9G
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Swap: 0 0 0
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```
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```
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$ docker run --rm --runtime=kata --name=test -m 2g --env=RUNCVM_KERNEL_DEBUG=1 -it alpine ash -c 'free -h'
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total used free shared buff/cache available
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Mem: 3.9G 94.4M 3.8G 0 3.7M 3.8G
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Swap: 0 0 0
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$ docker run --rm --runtime=kata --name=test -m 3g --env=RUNCVM_KERNEL_DEBUG=1 -it alpine ash -c 'free -h'
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total used free shared buff/cache available
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Mem: 4.9G 107.0M 4.8G 0 3.9M 4.8G
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Swap: 0 0 0
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$ docker run --rm --runtime=kata --name=test -m 0g --env=RUNCVM_KERNEL_DEBUG=1 -it alpine ash -c 'free -h'
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total used free shared buff/cache available
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Mem: 1.9G 58.8M 1.9G 0 3.4M 1.9G
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Swap: 0 0 0
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```
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## Kernel auto-detection
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