Re: Segmentation fault in changedline

["Joseph C. Sible" <josephcsible@...>]

On Tue, Jul 14, 2020 at 3:08 PM Roberto Ierusalimschy
<roberto@inf.puc-rio.br> wrote:
>
> >    We found a segmentation fault in changedline, called by luaG_traceexec.
> >
> >  [...]
> >
> >    Version:
> >
> >    Lua 5.4.0, git hash 31b8c2d4380a762d1ed6a7faee74a1d107f86014
> >
> >    Tested on default build of lua on Ubuntu 18. If we build with asan, the
> >    error is gone.
>
> This one is hard to debug. If we build with asan the error is gone. If
> we run it under valgrind the error is gone. If we run it inside gdb,
> the error is gone :-(
>
>
> -- Roberto

I found a way to reproduce this inside of GDB: do "set
disable-randomization off" at the GDB prompt before you start Lua.

Joseph C. Sible