On Oct 2, 2017, at 12:00 PM, pd-list-request@lists.iem.at wrote:

From: Roman Haefeli <reduzent@gmail.com>
To: "pd-list@lists.iem.at" <pd-list@lists.iem.at>
Subject: Re: [PD] Crasher bug
Message-ID: <1506929734.2070.4.camel@gmail.com>
Content-Type: text/plain; charset="utf-8"

On Son, 2017-10-01 at 22:16 +0200, Roman Haefeli wrote:

Hey all

Attached patch crashes Pd, at least on Ubuntu 16.04 amd64. Pd 0.48
and
0.47-1 seems affected, but not 0.46-7. Also, I cannot make it crash
with the current 0.48 release for Windows under Wine. I couldn't test
it on macOS, but the original patch (not this reduced one) crashes on
macOS 10.11 with Pd 0.48.

I checked again and it doesn't crash on macOS, however the original
non-reduced patch does reliably crash. It seems it requires a different
reduced version for macOS.

From 0.48, macOS 10.11:

pd(4254,0x7fff79118000) malloc: *** error for object 0x7fc3b2096208: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
Pd: signal 6
gui socket 4 - closing audio...