Re: info hangs in forward_move_node_structure on malformed input file

[Nathaniel Beaver]

Here is the backtrace for this bug after recompiling with -O0.

On 5/25/20 11:18 AM, Nathaniel Beaver wrote:
> Steps to reproduce:
>
> $ info -f ./hang_002.info.gz
> # Press 'Tab' key three times to try to jump to 'Index' node.
>
> Expected behavior:
>
> info shows error "Cannot find node 'Inde'" but does not enter an 
> infinite loop.
>
> Actual behavior:
>
> info shows error "Cannot find node 'Inde'" and then enters an infinite 
> loop.
>
> Discussion:
>
> The malformed input file hang_002.info.gz has the 'x' missing from 
> "Index", like this:
>
> File: example.info,  Node: First Chapter,  Next: Inde,  Prev: Top,  Up: Top
>
> Version:
>
> $ git describe --tags
> texinfo-6.6-364-g63711e8c6
> $ git rev-parse HEAD
> 63711e8c6fafe9b3cde2a2d0be507032d7ee7bf6
>
> Sincerely,
>
> Nathaniel Beaver

gdb.txt
Description: Text document