cpu/esp8266: fix the crashes on startup in vendor code#22010
Merged
gschorcht merged 1 commit intoRIOT-OS:masterfrom Jan 23, 2026
Merged
cpu/esp8266: fix the crashes on startup in vendor code#22010gschorcht merged 1 commit intoRIOT-OS:masterfrom
gschorcht merged 1 commit intoRIOT-OS:masterfrom
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RIOT uses an older version of the RTOS SDK, in which the `call_user_startup` function copied a fixed number of 3 segments from flash memory to RAM. This led to random crashes when there were only 2 segments to copy in flash memory. With this fix, the number of segments specified in the image header is now used.
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Platform: ESP
gschorcht
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Type: bug
85 tasks
maribu
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Jan 23, 2026
Contributor
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Thanks for fixing this one! |
leandrolanzieri
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Process: needs backport
Contributor
Author
Wait, now the example crashes when the |
gschorcht
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the
State: waiting for maintainer
Contributor
Author
Please forget it, I used a version of ESP8266-RTOS-SDK which I modified for the investigation of another problem with |
gschorcht
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the
State: waiting for maintainer
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Contribution description
This PR fixes arbitrary crashes or hangs when starting ESP8266 boards.
RIOT uses an older version of the vendor code from the ESP8266-RTOS-SDK, in which the
call_user_startupfunction tried to copy a fixed number of 3 segments from flash memory to RAM. This led to arbitrary crashes or hangs during startup when there were only two segments in the flash memory that needed to be copied to RAM. With this fix, the number of segments specified in the image header is now used.Testing procedure
Compile and flash an ESP8266 board with command
Without the PR, the example should get stuck or crash at startup. With the PR, the example should work.
Issues/PRs references