John Little wrote:
> On Friday, April 22, 2016 at 8:13:21 PM UTC+12, Lekare wrote:
>
> > When entering something really big, like
> >
> > :put =range(30000000000,300000000000000000000)
> >
> > Vim quits with message
> >
> > Vim: Caught deadly signal SEGV
> > Vim: Finished.
> > [1] 75479 segmentation fault \vim
>
> On my x86-64 with 16 GiB of RAM, that causes vim to gallop through
> memory at about 2 GiB/s, then linux is in strife, until
>
> [ 4382.649514 ] Out of memory: Kill process 2965 (gvim) score 917 or
> sacrifice child
> [ 4382.650036 ] killed process 2965 (gvim) total-vm:30326512kB,
> anon-rss:15751236kB, file-rss:160kB
>
> The point I'm trying to make is that if you ask vim to do stuff beyond
> the resources of the system it's running on, vim will try, and the
> failure depends on that system. IMO it would be very difficult to
> code vim to reliably catch all the ways it can fail like this.
I've been trying to make Vim survive bad user behavior. An out of
memory situation should be handled gracefully.
Looks like the problem is with the system: gdb says the crash happens in
ga_grow() when calling memset(), after checking that the pointer
returned by alloc() or realloc() is not NULL.
Unfortunately, Linux behaves quite badly. When I try that range() call
the whole system becomes unusable. Even the cursor freezes. This is one
situation that BSD handles much better.
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