From emmiller@gmail.com

$ zef install Template6
$ git clone git@​github.com​:scmorrison/uzu.git
$ cd uzu
$ perl6 t/02-build.t

1..3
  1..5
Clear old files
Create build directory
Copy public, assets
Compile templates [en]
fish​: 'perl6 t/02-build.t' terminated by signal SIGSEGV (Address boundary
error)

Other memory errors sometimes appear instead, e.g.​:

moar(63339,0x70000b4a6000) malloc​: *** error for object 0x7fa57da56e00​:
double free
*** set a breakpoint in malloc_error_break to debug

moar(63470,0x700006845000) malloc​: *** error for object 0x7ff9dfdbd290​:
pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug

$ perl6 --version
This is Rakudo version 2017.07-148-g5fcce6732 built on MoarVM version
2017.07-382-g348b4262
implementing Perl 6.c.

Might be related to #​131888; I see that error occasionally as well. I am
running Mac OS X 10.12.6.

From emmiller@gmail.com

Update​: Uzu has been updated to remove parallelism in order to work around the crash. To reproduce the issue, check out commit 6e0997d​:

$ zef install Template6
$ git clone git@​github.com​:scmorrison/uzu.git
$ cd uzu
$ git checkout 6e0997d
$ perl6 t/02-build.t

From @bdw

Can reproduce, thank you!

This also requires the following modules​:

JSON​::Fast (broken test on my machine, but may be for any reason)
File​::Temp
HTTP​::Server​::Async
HTTP​::Server​::Router
Test​::Output
Template​::Mustache
YAMLish

(I'm going to guess some of these were installed by rakudo star)

Arguably, we should have more of a 'batteries included' approach to a
rakudo release.

2017-08-13 15​:05 GMT+02​:00 Evan Miller via RT <perl6-bugs-followup@​perl.org>
:

Update​: Uzu has been updated to remove parallelism in order to work around
the crash. To reproduce the issue, check out commit 6e0997d​:

$ zef install Template6
$ git clone git@​github.com​:scmorrison/uzu.git
$ cd uzu
$ git checkout 6e0997d
$ perl6 t/02-build.t

The RT System itself - Status changed from 'new' to 'open'

From @bdw

It's a bus error that goes away with MVM_JIT_DISABLE.
This is going to be interesting.

2017-08-14 10​:23 GMT+02​:00 Bart Wiegmans <bartwiegmans@​gmail.com>​:

Can reproduce, thank you!

This also requires the following modules​:

JSON​::Fast (broken test on my machine, but may be for any reason)
File​::Temp
HTTP​::Server​::Async
HTTP​::Server​::Router
Test​::Output
Template​::Mustache
YAMLish

(I'm going to guess some of these were installed by rakudo star)

Arguably, we should have more of a 'batteries included' approach to a
rakudo release.

2017-08-13 15​:05 GMT+02​:00 Evan Miller via RT <
perl6-bugs-followup@​perl.org>​:

Update​: Uzu has been updated to remove parallelism in order to work
around the crash. To reproduce the issue, check out commit 6e0997d​:

$ zef install Template6
$ git clone git@​github.com​:scmorrison/uzu.git
$ cd uzu
$ git checkout 6e0997d
$ perl6 t/02-build.t

From @bdw

Hang on, it's only MVM_JIT_DISABLE sensitive on my branch (even-moar-jit).
It appears to happen within the perl6 extension opcodes.
Regards,
Bart

2017-08-14 10​:26 GMT+02​:00 Bart Wiegmans <bartwiegmans@​gmail.com>​:

It's a bus error that goes away with MVM_JIT_DISABLE.
This is going to be interesting.

2017-08-14 10​:23 GMT+02​:00 Bart Wiegmans <bartwiegmans@​gmail.com>​:

Can reproduce, thank you!

This also requires the following modules​:

JSON​::Fast (broken test on my machine, but may be for any reason)
File​::Temp
HTTP​::Server​::Async
HTTP​::Server​::Router
Test​::Output
Template​::Mustache
YAMLish

(I'm going to guess some of these were installed by rakudo star)

Arguably, we should have more of a 'batteries included' approach to a
rakudo release.

2017-08-13 15​:05 GMT+02​:00 Evan Miller via RT <
perl6-bugs-followup@​perl.org>​:

Update​: Uzu has been updated to remove parallelism in order to work
around the crash. To reproduce the issue, check out commit 6e0997d​:

$ zef install Template6
$ git clone git@​github.com​:scmorrison/uzu.git
$ cd uzu
$ git checkout 6e0997d
$ perl6 t/02-build.t