# Crystal compiler spec sigfaults on alpine linux

**URL:** <https://forum.crystal-lang.org/t/crystal-compiler-spec-sigfaults-on-alpine-linux/2815>\
**Category:** Help & Support\
**Created:** [December 25, 2020, 12:44pm UTC](https://forum.crystal-lang.org/t/crystal-compiler-spec-sigfaults-on-alpine-linux/2815 "2020-12-25T12:44:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mps](https://avatars.discourse-cdn.com/v4/letter/m/67e7ee/32.png) [@mps](https://forum.crystal-lang.org/u/mps)\
**Post date:** [December 25, 2020, 12:44pm UTC](https://forum.crystal-lang.org/t/crystal-compiler-spec-sigfaults-on-alpine-linux/2815/1 "2020-12-25T12:44:06Z")

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I’m trying to build crystal for next stable alpine release

build pass ok but running specs fails when trying compiler test with sigfault 11.

I created bug report on alpine site on url:

> **[crystal fails to pass compiler test on edge (#12228) · Issues · alpine / aports](https://gitlab.alpinelinux.org/alpine/aports/-/issues/12228)**
>
> \`\`\` .build/all\_spec --no-color --verbose Compiler has a valid version compiles a file Invalid memory access (signal 11) at address 0x7f592d74f4f8 \[0x55b0d35261c6\] \*Exception::CallStack::print\_backtrace:Int32 +118 \[0x55b0d2c8721c\]...

alpine uses musl libc (but I think most of you know this already)