autoloaded colors() crashes with out of memory error

autoloaded colors() crashes with out of memory error

[Marc Cornellà]

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DISCLAIMER: this is my first email to zsh-users, be gentle :D

Hi,

I'm a collaborator within the oh-my-zsh project. One of our users[1] has
two boxes where he
connects via ssh, both at Digital Ocean, that crash whenever this code runs:

    autoload colors && colors

We've separated the statement, and we see that it crashes on `colors'. But
since the function is
autoloaded, we can't know what will run before we run it:

    $ autoload -t colors
    $ which colors
    colors () {
        # undefined
        # traced
        builtin autoload -Xt
    }
    $ colors
    colors:3: fatal error: out of memory
    Connection to server closed.

We tried using the `autoload +X` construct to force loading the definition
of the function so we can
see what's wrong with it, but that also run out of memory.[2]

We also tried sourcing directly the officially provided colors file from
/usr/share/zsh/functions/Misc/colors,
and colors worked fine.

Is there any way to find out where zsh is sourcing the colors definition
from, or is this a bug in itself?
Any response will be appreciated. Thanks!


[1] https://github.com/robbyrussell/oh-my-zsh/issues/1815
[2]
https://github.com/robbyrussell/oh-my-zsh/issues/1815#issuecomment-50936620

--
Marc

Re: autoloaded colors() crashes with out of memory error

[Bart Schaefer]

On Aug 4, 11:22pm, Marc Cornella wrote:
}
}     $ autoload -t colors
}     $ which colors
}     colors () {
}         # undefined
}         # traced
}         builtin autoload -Xt
}     }
}     $ colors
}     colors:3: fatal error: out of memory
}     Connection to server closed.

The expression

	print -l -- ${^fpath}/colors(|.zwc)(N)

should find the source from which colors is being autoloaded, unless there
is a zwc "digest file" containing multiple function definitions.  Look at

	for zwc in ${^fpath}/*.zwc(N)
	do
            print -- $zwc
            zcompile -t $zwc
	done

to see if there might be any such.  Zsh tries to detect when a .zwc file
is from a different zsh version and avoid loading it, but there may be
cases where that's failing.

Re: autoloaded colors() crashes with out of memory error

[Marc Cornellà]

Thanks, man! The user got it to work again, he had a `colors`
directory from his vim config being autoloaded instead.

Next time I'll try the mailing list sooner haha
Again, thank you very much! :)