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Re: Help please! To track down GC trying to free an already freed object


From: Eli Zaretskii
Subject: Re: Help please! To track down GC trying to free an already freed object.
Date: Tue, 02 Apr 2019 22:21:26 +0300

> Date: Tue, 2 Apr 2019 12:09:59 -0700
> From: "Daniel Colascione" <address@hidden>
> Cc: address@hidden
> 
> rr is incredibly helpful for debugging this sort of problem. See
> https://rr-project.org/. You can record an rr session containing the
> crash, replay it, get to the crash, and then reverse-next, reverse-finish,
> and reverse-continue your way through the GC, running it in reverse until
> you find whatever it is that made mark_object on the dead object happen.

GDB supports reverse execution as well, on some platforms.



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