[Interest] Crashing in qMetaTypeCustomType_unlocked

[Thiago Macieira]

On Monday, 22 June 2020 09:50:20 PDT Michael Jackson wrote:
> We are currently experiencing some intermittent crashing in our program. The
> stacktrace is below. The code was compiled in "Release" mode. This is on an
> Ubuntu 18.04 (with all updates) and using GCC 8.4.0
> (https://my.cdash.org/buildSummary.php?buildid=1843613). We use the
> prebuilt Qt 5.12.8 from the downloads.qt.io website. We are trying to
> reproduce the bug in a Debug build but no luck so far.
> 
> I've never really had an issue like this and so I'm just looking for ideas
> on what it might be? Also note that we build nightly on macOS and Windows
> and those builds do not have any issues. Most use the same version of Qt
> 5.12.

Because those are probably not using D-Bus for anything. This is also showing 
"plugins/bearer/../.." which is really weird. I've never seen this show up. I 
don't know if we can attribute this to the NetworkManager bearer plugin (which 
does use D-Bus) or if this is just a red herring.

But there's a simple way to test: can you delete the NM plugin and see if the 
problem goes away?
 plugins/bearer/*

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel System Software Products