Don't attach the core file, attach to it with:

gdb tmux core.8841

Then do "bt full" and show me the output.


On Fri, Jan 13, 2017 at 03:58:17PM +0000, Kaushal Modi wrote:
>    Thanks for the quick reply.
>    The tmux that I build myself works fine. But this version of tmux that
>    fails is built by the company software team. So I do not have control over
>    their build env.
>    How can I figure out which libevent version was used to build tmux vs the
>    one available?
>    ldd returns this:
>    >ldd `which tmux`
>    ** ** ** ** linux-vdso.so.1 => **(0x00007fffd33ff000)
>    ** ** ** ** libutil.so.1 => /lib64/libutil.so.1 (0x00000036fcc00000)
>    ** ** ** ** libncurses.so.5 => /lib64/libncurses.so.5 (0x0000003703400000)
>    ** ** ** ** libevent-2.0.so.5 =>
>    /cad/abc/apps/gnu/linux/x86_64/6/lib/libevent-2.0.so.5
>    (0x00002ae6e9131000)
>    ** ** ** ** librt.so.1 => /lib64/librt.so.1 (0x00000036ed400000)
>    ** ** ** ** libresolv.so.2 => /lib64/libresolv.so.2 (0x00000036ed800000)
>    ** ** ** ** libc.so.6 => /lib64/libc.so.6 (0x00000036ec000000)
>    ** ** ** ** libtinfo.so.5 => /lib64/libtinfo.so.5 (0x0000003700c00000)
>    ** ** ** ** libdl.so.2 => /lib64/libdl.so.2 (0x00000036ec800000)
>    ** ** ** ** libpthread.so.0 => /lib64/libpthread.so.0 (0x00000036ec400000)
>    ** ** ** ** /lib64/ld-linux-x86-64.so.2 (0x00000036ebc00000)
>    I have attached the core file this time.
>    Thanks!
>    On Fri, Jan 13, 2017 at 10:45 AM Nicholas Marriott
>    <[1]nicholas.marri...@gmail.com> wrote:
> 
>      Hi
> 
>      It probably crashed.
> 
>      Are you sure you are using the same libevent version as the libevent you
>      built against?
> 
>      Does it generate a core file? (You may need to do "ulimit -cunlimited"
>      first.)
> 
>    --
> 
>    Kaushal Modi
> 
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