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From: Jeffrey Carl Faden <jeffreyatw@gmail.com>
To: unicorn-public@bogomips.org
Subject: initialize/fork crash in macOS 10.13
Date: Fri, 4 Aug 2017 09:40:16 -0700
Message-ID: <F28C7A88-7048-47A4-9B31-1D4AA128604D@gmail.com> (raw)

According to this post...
http://www.sealiesoftware.com/blog/archive/2017/6/5/Objective-C_and_fork_in_macOS_1013.html

The rules around initialize and fork() have changed in macOS 10.13, which is coming out in a month or so. I tried using Unicorn today to run a unicorn_rails instance, and got this as part of my traceback:

objc[95737]: +[__NSPlaceholderDictionary initialize] may have been in progress in another thread when fork() was called. We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to debug.
E, [2017-08-04T08:35:28.148339 #95531] ERROR -- : reaped #<Process::Status: pid 95736 SIGABRT (signal 6)> worker=1

I'm not sure if this is something downstream, but I thought I'd bring it to your attention. My temporary solution is to preface my commands with OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES.

Jeffrey

             reply	other threads:[~2017-08-04 16:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-04 16:40 Jeffrey Carl Faden [this message]
2017-08-04 19:10 ` Eric Wong
2017-10-16 19:25   ` Eric Wong

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