site_archiver@lists.apple.com Delivered-To: cocoa-dev@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mac.com; s=04042017; t=1543362809; bh=T+BimeWXq5buYIq7wjjbw0gWwZj9g0pjrFgPkU54KRM=; h=Content-type:MIME-version:Subject:From:Date:Message-id:To; b=lNkIW2CbRr1ijIyqW8Pqak3+YQkm/P03jXOtmUHfe3zJPzIEFG+ZRwHe3/SfE9AVK GPPF01z9anrEPxKuW1kAvhkVKFcMV4DXImLN6nI9bKI8oPXWfxjBA3BSPLJ10r7l89 Ao3ERG3X5Wub5oxUqxuP44UrFmqOTNiJMRWgzj7sIWHXqUPiKd2sz1VWQNoX/Vj3dy /MmHZESy/5ADykViuPBcffoIGtAAkLsXFGGb/0olkAQJACGircEKaCcbstK58ytnmH e+4ruV9wX8u+Q8tIA196VXmfPo9jtG7xNHeuRUtJw5fkyHPxWY1s9/UHoci9phkGEd I0g8V9UG6eaiQ== Actually, you want the Zombies tool. That finds overreleased objects like ones that cause the spew you are seeing. —Rob
On Nov 27, 2018, at 4:52 PM, Rob Petrovec <petrock@mac.com> wrote:
Check out the Leaks tool in Instruments (inside Xcode.app)
—Rob
On Nov 27, 2018, at 3:56 PM, Casey McDermott <support@turtlesoft.com> wrote:
Our main window has a tool bar across the top, an outline view on the left, and a tab view on the right. Choosing an item from the outline view fills a data entry screen into a new tab on the right.
We started out using OS 10.11, but just switched to newer OS versions. 10.12 has a couple display quirks but runs OK. In 10.13 and newer, switching tabs often crashes. It gives a warning about releasing a data entry field that is already released.
In C++, we would diagnose this with a breakpoint in the destructor and then check the stack trace. But with ARC, a breakpoint at dealloc just shows performDelayedCleanup and then main. No clues to what's wrong.
Is there lore or are there tools for tracking object lifetimes in Obj-C/ARC?
Anything that changed in 10.13 that might be biting us?
Thanks,
Casey McDermott TurtleSoft.com _______________________________________________
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