[Haskell-cafe] Static executables in minimal Docker containers

[Simon Marlow]

Hi Michael,

This rang a bell for me.  It might be the same as these:
https://ghc.haskell.org/trac/ghc/ticket/7695
https://ghc.haskell.org/trac/ghc/ticket/8928

I think the conclusion was that the IO library is failing to start 
iconv, and printing the error messages causes it to retry loading iconv, 
ad infinitum (or something like that).  There's no fix yet, but it 
probably isn't hard to fix, just that nobody got around to it yet.

Cheers,
Simon

On 13/04/2015 11:50, Michael Snoyman wrote:
> I'm not sure if this issue would show up, but I can try it in Fedora
> tomorrow. I didn't address the linker warning at all right now, it seems
> to not have been triggered, though I suppose it is possible that it's
> the cause of this issue.
>
> On Mon, Apr 13, 2015 at 7:10 PM Greg Weber <greg at gregweber.info
> <mailto:greg at gregweber.info>> wrote:
>
>     Haskell is not that great at producing statically linked libraries
>     independent of the OS.
>     The issue you are running into would likely show up in another
>     non-ubuntu image (or even possibly a different version of an ubuntu
>     image), so you could probably use a Fedora image that has tracing.
>
>     How are you addressing the linker warning about needing a particular
>     glibc version at runtime?
>
>     On Mon, Apr 13, 2015 at 3:28 AM, Sharif Olorin
>     <sharif.olorin at gmail.com <mailto:sharif.olorin at gmail.com>> wrote:
>
>             Unfortunately, strace and ltrace aren't available in that
>             Docker image, but it's a good idea to see if I can get them
>             running there somehow.
>
>
>         Failing that, you might be able to get useful information of the
>         same kind by running docker (the server, not the `docker run`
>         command) under perf[0] and then running your busybox container.
>         It should at least give you an idea of what it's doing when it
>         explodes.
>
>         Sharif
>
>         [0]: https://perf.wiki.kernel.org/index.php/Tutorial
>
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