[build2] std::system_error: Resource temporarily unavailable

[Dane Springmeyer]

> On Feb 6, 2018, at 7:31 AM, Boris Kolpackov <boris at codesynthesis.com> wrote:
> 
> Dane Springmeyer <dane at mapbox.com> writes:
> 
>> # logbt -- make
> 
> Neat ;-).
> 

Thanks :) It is a wrapper around `gdb/lldb --batch`: https://github.com/mapbox/logbt. Helps my team get in the habit of running the same command locally (mostly OS X machines) and in production (linux).

> 
>> #7  0x00000000005549c6 in build2::scheduler::create_helper(std::__1::unique_lock<std::__1::mutex>&) ()
> 
> I've tried a couple of things that came to mind:
> 
> 1. Built build2 from a makefile (builds fine).
> 
> 2. Checked if make overrides the stack size rlimit (not on my box).

Wow, you found it! On my system make is v3.81. With your lead I found and tried this workaround which fixes the problem: https://stackoverflow.com/a/16280013

> Also, if you want to check whether make overrides the stack size on
> your platforms, here is a test program:
> 
> https://codesynthesis.com/~boris/tmp/stacksize.c
> 

Permissions error prevents me from viewing that file but I figure it must do something like this?

size_t stksize;
pthread_attr_t atr;
pthread_attr_getstacksize(&atr, &stksize);
printf("Current stack size - > %d\n", stksize);

If I run that within make I see:

Current stack size - > 2097152

And outside of make:

Current stack size - > 8388608


> For some background on this stack size issue, see create_helper()
> (starts at line 450):
> 
> https://git.build2.org/cgit/build2/tree/build2/scheduler.cxx

Ah, thanks for sharing that. Definitely looks like the spot.

Thanks for the help here. Happy with working around on my side.

Dane