Crash removing Format

[Richard Kimberly Heck]

On 6/24/20 6:19 AM, Kornel Benko wrote:
> Am Tue, 23 Jun 2020 22:01:03 -0400
> schrieb Scott Kostyshak <skostysh at lyx.org>:
>
>> On Mon, Jun 22, 2020 at 04:55:50PM +0200, Kornel Benko wrote:
>>> Am Mon, 22 Jun 2020 10:24:17 -0400
>>> schrieb Richard Kimberly Heck <rikiheck at lyx.org>:
>>>   
>>>> On 6/22/20 10:03 AM, Kornel Benko wrote:  
>>>>> Following lead to crash:
>>>>>
>>>>> 	1. Create new file-Format (for instance Epub, define a viewer)
>>>>> 	2. define conversion for docbook-xls -> Epub
>>>>> 	3. restart lyx
>>>>> 	4. remove the new conversion
>>>>> 	5. remove the format Epub --> crash
>>>>>
>>>>> There is no crash if
>>>>> 	5. restart lyx
>>>>> 	6. remove the format Epub    
>>>> I can't reproduce.  
>>> You probably need to recompile with "-D_GLIBCXX_DEBUG_PEDANTIC -D_GLIBCXX_DEBUG"
>>>   
>>>> Can you post your preferences file as it exists after
>>>> (3)?  
>>>   
>>>> Do you save or apply after (4) or go right to step (5)?  
>>> Apply only. But with save it is the same.  
>> I can reproduce. In addition I get the following:
>>
>>   Error: attempt to subscript container with out-of-bounds index 21973, but 
>>   container only holds 99 elements.
>>
>> Scott
> Here the message is:
> /usr/include/c++/8/debug/vector:417:
> Error: attempt to subscript container with out-of-bounds index 1899910496, 
> but container only holds 98 elements.
>
> Objects involved in the operation:
>     sequence "this" @ 0x0x555f98a58bc8 {
>       type = std::__debug::vector<lyx::Graph::Vertex, std::allocator<lyx::Graph::Vertex>
>> ; }
> Abort (core dumped)
>
> If using attached, I got no crash, but the list of indexes used while removing the format
> is scarifying.
>
>  $ wc errors
>  1014  5060 35805 errors
>
>  $ sort my_list | uniq
> Graph.cpp (145): VERT-INDEX == 0
> Graph.cpp (145): VERT-INDEX == 11
> Graph.cpp (145): VERT-INDEX == 21972
> Graph.cpp (145): VERT-INDEX == 24
> Graph.cpp (145): VERT-INDEX == 32
> Graph.cpp (145): VERT-INDEX == 32757
> Graph.cpp (145): VERT-INDEX == 33
> Graph.cpp (145): VERT-INDEX == 71
> Graph.cpp (145): VERT-INDEX == 79
> Graph.cpp (145): VERT-INDEX == 8
> Graph.cpp (145): VERT-INDEX == 80
> Graph.cpp (145): VERT-INDEX == 83
>
>  $ egrep 21972 my_list | wc
>     377    1885   13949
>
>  $ egrep 32757 my_list | wc
>     134     670    4958

I will have a look.

Riki