flapigen crashes on ppc64le

[tasn]

It crashes when trying to generate Python code, only on ppc64le, the rest of the arches work.
Here's the output I'm getting from Travis: https://travis-ci.com/github/etesync/etebase-py/jobs/372388374

Just thought I would share, no idea what it may be though.

[Dushistov]

*** Error in `/project/target/release/build/flapigen-60f41546697ced46/build-script-build': malloc(): memory corruption (fast): 0x00000cf4043257e0 ***

  ======= Backtrace: =========

  /lib64/libc.so.6(+0x91e04)[0x719c76b81e04]

  /lib64/libc.so.6(+0x96d50)[0x719c76b86d50]

  /lib64/libc.so.6(__libc_malloc+0x8c)[0x719c76b88efc]

Looks slightly similar to this rust-lang/rust#55861 (tests on arm/android fails, and
finally find out that this was problem in android's libc allocator, and as result Rust team
increase minimal version of android that rust stdlib supports rust-lang/rust#45580).

May be this is the case and problem with libc on ppc64le.
If you have free time, it would be interesting to switch flapigen-rs to jemalloc and tests would it fails or not.

[tasn]

Different error than last time when trying to use jemalloc.

 error: failed to run custom build command for `flapigen v0.6.0-pre5 (https://github.com/Dushistov/flapigen-rs#47277cb5)`

  Caused by:

    process didn't exit successfully: `/target/release/build/flapigen-60f41546697ced46/build-script-build` (signal: 11, SIGSEGV: invalid memory reference)

  --- stdout

  cargo:rerun-if-changed=src/java_jni/jni-include.rs

https://travis-ci.com/github/etesync/etebase-py/jobs/372488301

Anyhow, no worries if you would rather not check this further as I understand it's a bit of a niche and it's most likely not an issue with flapigen but with something else. I just wanted to flag this in case you weren't aware.

Please feel free to close this ticket.