I wrote:

> Yegappan wrote:
> 
> > Hi Bram,
> > 
> > On Sun, Sep 13, 2020 at 4:42 AM Bram Moolenaar <vim-dev-git...@256bit.org>
> > wrote:
> > 
> > > Can you turn the example into a test? I gave it a try but it didn't
> > > trigger the error.
> > >
> > >
> > >
> > I am able to reproduce this error with the following function:
> > 
> > ===============================================
> > func Test()
> >   call writefile(['test1', 'test2'], 'Xfile')
> >   edit Xfile
> >   let s:bufnr = bufnr()
> >   call setloclist(1, [{'bufnr' : s:bufnr, 'lnum' : 1, 'text' : 'test1'},
> >         \ {'bufnr' : s:bufnr, 'lnum' : 2, 'text' : 'test2'}])
> > 
> >   augroup Test_LocList
> >     au!
> >     autocmd BufEnter * call setloclist(1,
> >           \ [{'bufnr' : s:bufnr, 'lnum' : 1, 'text' : 'test1'},
> >           \  {'bufnr' : s:bufnr, 'lnum' : 2, 'text' : 'test2'}], 'r')
> >   augroup END
> > 
> >   lopen
> >   exe "normal j\<CR>"
> > 
> >   augroup Test_LocList
> >     au!
> >   augroup END
> >   call delete('Xfile')
> > endfunc
> > ===============================================
> 
> Strangely, when running this under valgrind I have to change the line
> with the normal command to catch the E926 error, which makes sense:
> 
>       call assert_fails('exe "normal j\<CR>"', 'E926:')
> 
> However, when not using valgrind it reports "command did not fail".
> Thus there must still be something wrong.

Running with ASAN has a similar effect: The test passes and no errors
are reported.  I suspect both Valgrind and ASAN initialize pointers
in some way, and when not doing that the error is not caught.

-- 
A parent can be arrested if his child cannot hold back a burp during a church
service.
                [real standing law in Nebraska, United States of America]

 /// Bram Moolenaar -- b...@moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///

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