Re: Bug#251378: zsh: segfaults when globing includes too many files

[Peter Stephenson <pws@xxxxxxx>]

Clint Adams wrote:
> > I can't reproduce this yet, but some people are experiencing segfaults
> > when globbing in /usr/share/doc.  The source shown below includes 19920.
> > This also happens with HEAD, I think.
> 
> Also this.  So h->next is getting corrupted somewhere?

I just tried a huge `print -l /usr/**/*' where zsh swallowed up 40 Mbytes.
This worked and the shell successfully freed the memory afterwards.  So
it doesn't look this is simple problem with the heap allocator.

I don't have zsh's malloc compiled in (as it screws up valgrind), so
that might be a problem.

Otherwise, it may be triggering some unpleasant corner case.  Adding
more detailed debugging checks to mem.c might help for that.

-- 
Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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