Keep lwIP netif persistent across lifecycle transitions#411
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matthiaskessler
previously approved these changes
May 4, 2026
christian-schilling
previously approved these changes
May 4, 2026
After Lifecycle transition 9 → 4 → 9, UDP multicast join failed with: igmp_joingroup failed with status -6 because EthernetSystem::init() was only executed once during system lifetime, while run() is re-executed after lifecycle restart. Network interface configuration was performed inside init(). During LC restart (4 → 9), init() was not called again, therefore the lwIP netif was not properly reconfigured. Moving all netif-specific configuration and activation logic into run() solves the issue.
amit-warbhe
dismissed stale reviews from matthiaskessler and christian-schilling
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3f9b0fb
matthiaskessler
approved these changes
May 21, 2026
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Keep lwIP netif persistent across lifecycle transitions
After Lifecycle transition 9 → 4 → 9, UDP multicast join failed with:
igmp_joingroup failed with status -6
because EthernetSystem::init() was only executed once during system lifetime,
while run() is re-executed after lifecycle restart.
Network interface configuration was performed inside init().
During LC restart (4 → 9), init() was not called again, therefore
the lwIP netif was not properly reconfigured.
Moving all netif-specific configuration and activation logic into run() solves the issue.