option -s doesn't work

[nottledim]

If specify partition size with -s an image is built which cannot be read. With -i it prints total and used as 0 and 255. The -l option causes seg fault.

It builds image OK when -s not specified but size is too small.

It's version V3.0V3.0-dev-806-gde750e99

Linux system GCC version 6.3.

(Sorry about brevity, men dug up my internet connection and I have to use my phone 😡.)

[davruet]

Same problem here, (using mkspiffs git d79bd560) - if I omit size everything works, but adding -s seems to break things:

$ mkspiffs -p 256 -b 4096 -s 0x16F000 -c spiffs_files spiffs.img /conf.json $ mkspiffs/mkspiffs -d 5 -l spiffs.img Debug output enabled Segmentation fault: 11

OSX 10.11.3, compiled with clang++ (clang-703.0.31)

(updated to fix typo in mkspiffs command)

[igrr]

Hi @nottledim, could you explain what you mean by "image is built which can not be read". Are you using mkspiffs to read the image, or something else?

@davruet Thanks for reporting the segfault, will fix.

[nottledim]

I was building a filesystem for uploading to esp32 (esp-idf). If I used the -s option it creates an image but that image is not useful on the esp32. Files supposedly included in the spiffs image could not be accessed by the esp32. I was just using code derived from the example code which reports some meta data from the filesystem. It was that that reported the silly numbers.

One thing I recently discovered is that the default settings in esp-idf have been changed. Specifically the "size of per-file metadata". mkspiffs defaults to zero but esp-idf now sets I think 4 bytes (1 word).

I think it's possible that this explains the problem I was seeing. A more recent use of latest mkspiffs with the settings matching seems to work properly.

[igrr]

@nottledim ok, thanks, it makes sense.

I am working now on preparing new mkspiffs release which should be compatible with ESP-IDF. I'll update this issue when it is done.

[nottledim]

Just for the record this is where I was alerted to the change: https://github.com/espressif/esp-idf/issues/1437

[igrr]

Please give the latest release a try: https://github.com/igrr/mkspiffs/releases. Since you are using esp-idf, download mkspiffs-0.2.2-esp-idf-YOUR_OS archive.