Transmit hang in low_level_output() for applications using raw lwip api
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Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 35/100
- Issue type
- Bug
- Clarity
- Clearly specified
- Activity status
- Stale
- Tech stack
- c
- Domain
- embedded-iot, networking
Research direction
Locate the raw lwIP transmit path that calls HAL_ETH_Transmit_IT() and compare it with the surrounding HAL Ethernet handling. Confirm how PacketAddress[] is populated and whether the synchronous transmit path avoids the missing HAL_ETH_ReleaseTxPacket() calls. Done means raw lwIP transmission no longer hangs as PacketAddress[] entries become non-NULL.
Written by the indexing model from the issue text.
Description
Plz replace HAL_ETH_Transmit_IT() with HAL_ETH_Transmit() for applications using raw lwip api.
Currently, since there is no explicit call to HAL_ETH_ReleaseTxPacket(), all elements in the PacketAddress[] array will become non-NULL eventually, causing the transmission process to hang indefinitely.
- Dominant language
- C
- Stars
- 19
- Forks
- 5
- PR merge metrics
- No merged PRs in 30d
Getting set up
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STMicroelectronics/STM32CubeMP2#2 · 1 comment ·
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