cpu/esp*: fixes for tests/pkg_spiffs and tests/pkg_littlefs #12890
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gschorcht
added
Area: cpu
ESP32 nodes can crash during SPI Flash write operations if required parts of the code are not in the IRAM but in the cached SPI Flash memory, which is disabled during the SPI Flash write operations. Therefore, the code of the SPIFFS package and the VFS module are now stored in the IRAM.
To avoid that murdock times out before tests/pkg_spiffs and tests/pkg_littlefs time out, the configured test timeouts for these tests is reduced to 200 seconds which should be enough. An ESP32 needs an average of 60 seconds for these tests, while an ESP8266 needs in average 100 seconds.
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kaspar030
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Dec 6, 2019
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Contribution description
This PR fixes the problem with
tests/pkg_spiffsthat occurred in #11449 after merging PR #12810.SPI flash write operations require to disable the cache for the program code in SPI flash memory. Therefore, the program code required during SPI flash write operations has to be placed in IRAM. With this PR, the code of
pkg_spiffsandvfsis therefore placed in IRAM by the linker script.Furthermore, this PR reduces the configured test timeout for
tests/pkg_spiffsandtests/pkg_littlefsto avoid that murdock times out before these tests time out. The configured timeout is now 200 seconds which should be enough. An ESP32 needs an average of 60 seconds for these tests, while an ESP8266 needs in average 100 seconds.Testing procedure
Flash and test
tests/pkg_spiffswith and without this PR.The test should crash or timeout without this PR and should work as expected with the PR.
Issues/PRs references
Solves the problem with
tests/pkg_spiffsin #11449.