Re: vim consumes huge memory with stty rows/columns set to 64K

On Tuesday, May 14, 2013 1:58:13 PM UTC-4, Bram Moolenaar wrote:
> Jieming wrote:
>
>
>
> > On Linux (64 bit), the following tty settings will can cause vi to consume 40G, and can cause system to run out of memory:
>
> >
>
> > stty rows 65535
>
> > stty columns 65535
>
> > vi foo
>
> >
>
> > This need to be fixed (e.g., restrict columns to 512). Any comments.
>
>
>
> I get:
>
> E342: Out of memory! (allocating 4294901760 bytes)
>
>
>
> Vim needs a screen buffer, 65535 * 65535 = 4294836225
>
> Makes sense?
>
>
>
> It actually works for me, although the screen is messed up, for obvious
>
> reasons.
>
>
>
> --
>
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>
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>
> didn't you?
>
> The Quest for the Holy Grail (Monty Python)
>
>
>
> /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
>
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Some application sets this. It took a while to figure out how vim eats so much memory. But regardless, need to fix vim (e.g., set max columns to 512).

Cheers
Jieming

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