Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated" in Linux foundation

This isn’t it, because we always call through to swift_release in CFRelease on Linux, because the CFString is a swift type under the hood. We may be able to change this to check for a CF specific hack of some kind, but in the meantime adding the retain works. PR here: https://github.com/apple/

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated" in Linux foundation

I think that perhaps we have a problem with the retain count flags in the definition of CFSTR. Previously the pinned reference would prevent the deallocation. This may have gotten clobbered with the latest CF import. Sent from my iPhone > On Nov 29, 2017, at 7:55 PM, Brandon Williams via swift-

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated" in Linux foundation

Hey Tony, We were able to fix our crashes by avoiding our uses of `URLQueryItem`s. In one place I had to completely remove the use of `URLQueryItem`: https://github.com/pointfreeco/swift-web/pull/79/files#diff-293b73a926ba418bd9511ef735fc947cL147 And in another my colleague Stephen Celis discove

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated" in Linux foundation

I see a couple of places that are suspicious there: Description: https://github.com/apple/swift-corelibs-foundation/blob/master/CoreFoundation/URL.subproj/CFURLComponents.c#L66 And

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated" in Linux foundation

Thanks for the info! FWIW, most of the places I have encountered this so far have made use of `URLComponents`, and have even been able to eliminate the crash by getting rid of that code in a few places. The other JIRA bug on this topic also mentions URLComponents in their repro case. Seems to be t

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated" in Linux foundation

Hi Brandon, This is probably a bug in the CoreFoundation C sources part of swift-corelibs-foundation. Unlike Darwin platforms, we can’t make the CFSTR(“”) macro produce a CFStringRef that cannot be overreleased. Probably there is a constant string returned from CF function, then the Swift runti

[swift-corelibs-dev] Encountering "Constant strings cannot be deallocated" in Linux foundation

Hello all! We’ve been encountering this runtime error quite a bit recently, and we have no idea why. We’ve filed a bug and there’s one other on JIRA related to this, but both without any comments: https://bugs.swift.org/browse/SR-6422 https://bugs.swift.org/browse/SR-6398 We’re curious if others

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated"

Thanks! Alex > On 17 Nov 2017, at 17:27, Brandon Williams wrote: > > I haven’t been able to find a minimal test case, but at least the test case I > linked to reproduces every time. > > I’m not sure I’ll have time to search for a minimal case today, and I leave > for vacation tomorrow :/ per

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated"

I haven’t been able to find a minimal test case, but at least the test case I linked to reproduces every time. I’m not sure I’ll have time to search for a minimal case today, and I leave for vacation tomorrow :/ perhaps when I get back. I did at least file the bug report: https://bugs.swift.org/b

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated"

Can you file a bug at bugs.swift.org with a minimal test case? It certainly sounds like a bug, and from the looks of the docker files, you're using the swift 4.0.2 release on Ubuntu 16.04. If you can run the test under LLDB and put a breakpoint in that function, and get

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated"

Oops, sorry, hit send too early! The docker file Im using can be seen here: https://github.com/pointfreeco/swift-web/blob/bb-travis/Dockerfile Which is this template: https://github.com/swiftdocker/docker-swift/blob/5c83628d4696bca62aec3136a4ee9b854e8d548e/4.0/Dockerfile So not using any of th

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated"

Ah, sorry for now providing more info! So the docker file that I am using to run the tests can be see here: On Thu, Nov 16, 2017 at 5:43 PM Philippe Hausler wrote: > Is this with a recent build? Do you know what commit the > swift-corelibs-foundation is from? That might help nail down what is

Re: [swift-corelibs-dev] Encountering "Constant strings cannot be deallocated"

Is this with a recent build? Do you know what commit the swift-corelibs-foundation is from? That might help nail down what is going on here. > On Nov 16, 2017, at 2:41 PM, Brandon Williams via swift-corelibs-dev > wrote: > > Hello! I have a test case that when run on Linux somehow encounters

[swift-corelibs-dev] Encountering "Constant strings cannot be deallocated"

Hello! I have a test case that when run on Linux somehow encounters the "Constant strings cannot be deallocated” fatal error thrown in NSCFString.swift, as seen here: https://github.com/apple/swift-corelibs-foundation/blob/master/Foundation/NSCFString.swift#L118 The test that does it is here: ht