Hirohito Higashi wrote:
> 2016-9-4(Sun) 21:33:17 UTC+9 h_east:
> > Hi Bram and developers,
> >
> > I checked in 7.4.2321
> >
> > ==== Case 1 ====
> > How to reproduce:
> > - Create the following file:
> > $ cat sample1.vim
> > edit a.txt
> > augroup sample
> > autocmd!
> > autocmd BufUnload <buffer> tabfirst | 2bwipeout!
> > augroup END
> > edit b.txt
> >
> > - Run vanilla Vim with above script file
> > $ vim -Nu NONE -S sample1.vim
> >
> > Expected behavior:
> > SEGV does not occur.
> >
> > Actual behavior:
> > SEGVed.
> >
> >
> >
> > ==== Case 2 ====
> > How to reproduce:
> > - Create the following file:
> > $ cat sample2.vim
> > setlocal buftype=nowrite
> > augroup sample
> > autocmd!
> > autocmd BufUnload <buffer> tabfirst | 2bwipeout
> > augroup END
> > normal! i1
> > edit a.txt
> > call feedkeys("\<CR>")
> >
> > - Run vanilla Vim with above script file
> > $ vim -Nu NONE -S sample2.vim
> >
> > Expected behavior:
> > SEGV does not occur.
> >
> > Actual behavior:
> > SEGVed.
> >
> >
> > I know there are rare case and salicious scripts.
> > But, It is not good to SEGV.
> >
> > I wrote a patch. --> `fix_autocmd_bufunload_with_bwipe.patch`
> > check it out.
> > I've also written test. --> `autocmd_bufunload_with_bwipe_test.patch`
> > Unfortunately, it did not SEGV in the pre-patch binary :-/
> >
> > NOTE: This issue was reported by Norio Takagi. (Thanks!)
>
> My patch also fixed the following case.
>
> ==== Case 3 ====
> How to reproduce:
> - Create the following file:
> $ cat sample3.vim
> tabedit
> augroup sample
> autocmd!
> autocmd BufWinLeave <buffer> tabfirst
> augroup END
> :%!ls
> edit! a.txt
> normal! gt
> :%!ls
> call feedkeys("\<CR>q::q\<CR>")
>
>
> - Run vanilla Vim with above script file
> $ vim -Nu NONE -S sample3.vim
>
> Expected behavior:
> SEGV does not occur.
>
> Actual behavior:
> SEGVed.
That can be simplified to:
tabedit
augroup sample
autocmd!
autocmd BufWinLeave <buffer> tabfirst
augroup END
call setline(1, ['a', 'b', 'c'])
edit! a.txt
It still crashes. Need to check the window changed also for
BufWinLeave.
--
"Hit any key to continue" is very confusing when you have two keyboards.
/// Bram Moolenaar -- [email protected] -- 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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