veth: Avoid spammy dmesg info messages #17705
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Avoid spamming the kernel log with below messages as reported by @mukeshkwm: [...] [Mon Oct 25 06:48:03 2021] cilium_host: Caught tx_queue_len zero misconfig [Mon Oct 25 06:48:03 2021] cilium_net: Caught tx_queue_len zero misconfig [Mon Oct 25 06:48:08 2021] lxc_health: Caught tx_queue_len zero misconfig [...] [Mon Oct 25 07:22:27 2021] lxc667d091cb0ea: Caught tx_queue_len zero misconfig [Mon Oct 25 07:22:27 2021] lxc742557edbdd8: Caught tx_queue_len zero misconfig [Mon Oct 25 07:22:27 2021] lxc_health: Caught tx_queue_len zero misconfig [Mon Oct 25 07:22:27 2021] lxcb7215aa13fc7: Caught tx_queue_len zero misconfig [...] These are harmless and the kernel will internally fix up dev->tx_queue_len to DEFAULT_TX_QUEUE_LEN (== 1000). Avoid the messages by explicitly setting the dev->tx_queue_len upon veth creation. Fixes: #17703 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
borkmann
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kind/cleanup
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test-me-please |
kkourt
approved these changes
Oct 26, 2021
pchaigno
approved these changes
Oct 26, 2021
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Avoid spamming the kernel log with below messages as reported by @mukeshkwm:
[...]
[Mon Oct 25 06:48:03 2021] cilium_host: Caught tx_queue_len zero misconfig
[Mon Oct 25 06:48:03 2021] cilium_net: Caught tx_queue_len zero misconfig
[Mon Oct 25 06:48:08 2021] lxc_health: Caught tx_queue_len zero misconfig
[...]
[Mon Oct 25 07:22:27 2021] lxc667d091cb0ea: Caught tx_queue_len zero misconfig
[Mon Oct 25 07:22:27 2021] lxc742557edbdd8: Caught tx_queue_len zero misconfig
[Mon Oct 25 07:22:27 2021] lxc_health: Caught tx_queue_len zero misconfig
[Mon Oct 25 07:22:27 2021] lxcb7215aa13fc7: Caught tx_queue_len zero misconfig
[...]
These are harmless and the kernel will internally fix up dev->tx_queue_len
to DEFAULT_TX_QUEUE_LEN (== 1000). Avoid the messages by explicitly setting
the dev->tx_queue_len upon veth creation.
Fixes: #17703
Signed-off-by: Daniel Borkmann daniel@iogearbox.net