DateFormatter crash on second usage (new instance) on Linux (swift 3.0.1)

[schafdog (Dennis Schafroth)]

Hi

Trying to do some simple date parsing from syslog format (“Jan 25 20:21:22”) into Date. Seem to work once but crashes on second call

func dateConv(_ dateString: String) -> Date? {
  let dateFormatter = DateFormatter()
  dateFormatter.dateFormat = "MMM dd HH:mm"
  dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
  if let date = dateFormatter.date(from: dateString) {
    print("Real date: \(date)" )
    return date
  }
  return nil
}

var date = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

# swift main.swift
Real date: 2000-01-25 19:10:00 +0000
0 swift 0x000000000334ab78 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 swift 0x0000000003349346 llvm::sys::RunSignalHandlers() + 54
2 swift 0x000000000334b6aa
3 libpthread.so.0 0x00007fec92166890
4 libswiftCore.so 0x00007fec8e8f0735
5 libFoundation.so 0x00007fec8c0ab6ee
6 libFoundation.so 0x00007fec8bd7a222
7 libFoundation.so 0x00007fec8bd7c623
8 libFoundation.so 0x00007fec8bf0e873 _TFC10Foundation6NSDateg11descriptionSS + 99
9 libFoundation.so 0x00007fec8c182829 _TTWV10Foundation4Dates23CustomStringConvertibleS_FS1_g11descriptionSS + 57
10 libswiftCore.so 0x00007fec8e78c745 _TFs15_print_unlockedu0_R_s16TextOutputStreamrFTxRq__T_ + 997

using swift 3.0.1. Am I doing something wrong? I seems to work on macOS.

cheers,
:-Dennis

[mcbauer08]

Check out your parentheses. The last one is a right curly quote not the straight ascii quote that it should be.

···

On Jan 25, 2017, at 5:04 PM, Dennis Schafroth via swift-users <swift-users@swift.org> wrote:

Hi

Trying to do some simple date parsing from syslog format (“Jan 25 20:21:22”) into Date. Seem to work once but crashes on second call

func dateConv(_ dateString: String) -> Date? {
  let dateFormatter = DateFormatter()
  dateFormatter.dateFormat = "MMM dd HH:mm"
  dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
  if let date = dateFormatter.date(from: dateString) {
    print("Real date: \(date)" )
    return date
  }
  return nil
}

var date = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

[Philippe_Hausler]

We should run those tests with ASAN, I thought I had fixed that with the Sierra merge.

···

Sent from my iPhone

On Jan 25, 2017, at 6:11 PM, Will Stanton via swift-corelibs-dev <swift-corelibs-dev@swift.org> wrote:

Based on the backtrace, I think the code is running into a memory issue with Swift Foundation:
[SR-2485] Segmentation fault in Date · Issue #4331 · apple/swift-corelibs-foundation · GitHub
[SR-2462] Compiler is sometimes overreleasing CF objects · Issue #45067 · apple/swift · GitHub

I haven’t seen this in a while - are you able to try running on Swift 3.1 or 3.0.2?
Your code seems to work on the IBM Sandbox with 3.0.2 but not 3.0.1.
You could also try replacing every 'let’ with ‘var’ but that might not be the right solution :-)

Regards,
Will Stanton

On Jan 25, 2017, at 5:04 PM, Dennis Schafroth via swift-users <swift-users@swift.org> wrote:

Hi

Trying to do some simple date parsing from syslog format (“Jan 25 20:21:22”) into Date. Seem to work once but crashes on second call

func dateConv(_ dateString: String) -> Date? {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMM dd HH:mm"
dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
if let date = dateFormatter.date(from: dateString) {
   print("Real date: \(date)" )
   return date
}
return nil
}

var date = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

# swift main.swift
Real date: 2000-01-25 19:10:00 +0000
0 swift 0x000000000334ab78 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 swift 0x0000000003349346 llvm::sys::RunSignalHandlers() + 54
2 swift 0x000000000334b6aa
3 libpthread.so.0 0x00007fec92166890
4 libswiftCore.so 0x00007fec8e8f0735
5 libFoundation.so 0x00007fec8c0ab6ee
6 libFoundation.so 0x00007fec8bd7a222
7 libFoundation.so 0x00007fec8bd7c623
8 libFoundation.so 0x00007fec8bf0e873 _TFC10Foundation6NSDateg11descriptionSS + 99
9 libFoundation.so 0x00007fec8c182829 _TTWV10Foundation4Dates23CustomStringConvertibleS_FS1_g11descriptionSS + 57
10 libswiftCore.so 0x00007fec8e78c745 _TFs15_print_unlockedu0_R_s16TextOutputStreamrFTxRq__T_ + 997

using swift 3.0.1. Am I doing something wrong? I seems to work on macOS.

cheers,
:-Dennis

_______________________________________________
swift-corelibs-dev mailing list
swift-corelibs-dev@swift.org
https://lists.swift.org/mailman/listinfo/swift-corelibs-dev

[willstanton]

Based on the backtrace, I think the code is running into a memory issue with Swift Foundation:

[SR-2485] Segmentation fault in Date

[SR-2462] Compiler is sometimes overreleasing CF objects

I haven’t seen this in a while - are you able to try running on Swift 3.1 or 3.0.2?
Your code seems to work on the IBM Sandbox with 3.0.2 but not 3.0.1.
You could also try replacing every 'let’ with ‘var’ but that might not be the right solution :-)

Regards,
Will Stanton

···

On Jan 25, 2017, at 5:04 PM, Dennis Schafroth via swift-users <swift-users@swift.org> wrote:

Hi

Trying to do some simple date parsing from syslog format (“Jan 25 20:21:22”) into Date. Seem to work once but crashes on second call

func dateConv(_ dateString: String) -> Date? {
  let dateFormatter = DateFormatter()
  dateFormatter.dateFormat = "MMM dd HH:mm"
  dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
  if let date = dateFormatter.date(from: dateString) {
    print("Real date: \(date)" )
    return date
  }
  return nil
}

var date = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

# swift main.swift
Real date: 2000-01-25 19:10:00 +0000
0 swift 0x000000000334ab78 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 swift 0x0000000003349346 llvm::sys::RunSignalHandlers() + 54
2 swift 0x000000000334b6aa
3 libpthread.so.0 0x00007fec92166890
4 libswiftCore.so 0x00007fec8e8f0735
5 libFoundation.so 0x00007fec8c0ab6ee
6 libFoundation.so 0x00007fec8bd7a222
7 libFoundation.so 0x00007fec8bd7c623
8 libFoundation.so 0x00007fec8bf0e873 _TFC10Foundation6NSDateg11descriptionSS + 99
9 libFoundation.so 0x00007fec8c182829 _TTWV10Foundation4Dates23CustomStringConvertibleS_FS1_g11descriptionSS + 57
10 libswiftCore.so 0x00007fec8e78c745 _TFs15_print_unlockedu0_R_s16TextOutputStreamrFTxRq__T_ + 997

using swift 3.0.1. Am I doing something wrong? I seems to work on macOS.

cheers,
:-Dennis

[Zhao_Xin]

That why I am choosing to use an IDE. It shows the typos.

Zhaoxin

···

On Thu, Jan 26, 2017 at 7:53 AM, Michael Bauer via swift-users < swift-users@swift.org> wrote:

On Jan 25, 2017, at 5:04 PM, Dennis Schafroth via swift-users < > swift-users@swift.org> wrote:

Hi

Trying to do some simple date parsing from syslog format (“Jan 25
20:21:22”) into Date. Seem to work once but crashes on second call

func dateConv(_ dateString: String) -> Date? {
  let dateFormatter = DateFormatter()
  dateFormatter.dateFormat = "MMM dd HH:mm"
  dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
  if let date = dateFormatter.date(from: dateString) {
    print("Real date: \(date)" )
    return date
  }
  return nil
}

var date = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

Check out your parentheses. The last one is a right curly quote not the
straight ascii quote that it should be.

_______________________________________________
swift-users mailing list
swift-users@swift.org
https://lists.swift.org/mailman/listinfo/swift-users

[schafdog (Dennis Schafroth)]

Thanks for the suggestions.

It works with 3.0.2 but won't compile with 3.1 beta for Ubuntu 14.04. Missing a Block.h which does exist in 3.0.2

:-Dennis

···

On 26 Jan 2017, at 05.20, Philippe Hausler <phausler@apple.com> wrote:

We should run those tests with ASAN, I thought I had fixed that with the Sierra merge.

Sent from my iPhone

On Jan 25, 2017, at 6:11 PM, Will Stanton via swift-corelibs-dev <swift-corelibs-dev@swift.org> wrote:

Based on the backtrace, I think the code is running into a memory issue with Swift Foundation:
[SR-2485] Segmentation fault in Date · Issue #4331 · apple/swift-corelibs-foundation · GitHub
[SR-2462] Compiler is sometimes overreleasing CF objects · Issue #45067 · apple/swift · GitHub

I haven’t seen this in a while - are you able to try running on Swift 3.1 or 3.0.2?
Your code seems to work on the IBM Sandbox with 3.0.2 but not 3.0.1.
You could also try replacing every 'let’ with ‘var’ but that might not be the right solution :-)

Regards,
Will Stanton

On Jan 25, 2017, at 5:04 PM, Dennis Schafroth via swift-users <swift-users@swift.org> wrote:

Hi

Trying to do some simple date parsing from syslog format (“Jan 25 20:21:22”) into Date. Seem to work once but crashes on second call

func dateConv(_ dateString: String) -> Date? {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMM dd HH:mm"
dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
if let date = dateFormatter.date(from: dateString) {
  print("Real date: \(date)" )
  return date
}
return nil
}

var date = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

# swift main.swift
Real date: 2000-01-25 19:10:00 +0000
0 swift 0x000000000334ab78 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 swift 0x0000000003349346 llvm::sys::RunSignalHandlers() + 54
2 swift 0x000000000334b6aa
3 libpthread.so.0 0x00007fec92166890
4 libswiftCore.so 0x00007fec8e8f0735
5 libFoundation.so 0x00007fec8c0ab6ee
6 libFoundation.so 0x00007fec8bd7a222
7 libFoundation.so 0x00007fec8bd7c623
8 libFoundation.so 0x00007fec8bf0e873 _TFC10Foundation6NSDateg11descriptionSS + 99
9 libFoundation.so 0x00007fec8c182829 _TTWV10Foundation4Dates23CustomStringConvertibleS_FS1_g11descriptionSS + 57
10 libswiftCore.so 0x00007fec8e78c745 _TFs15_print_unlockedu0_R_s16TextOutputStreamrFTxRq__T_ + 997

using swift 3.0.1. Am I doing something wrong? I seems to work on macOS.

cheers,
:-Dennis

_______________________________________________
swift-corelibs-dev mailing list
swift-corelibs-dev@swift.org
https://lists.swift.org/mailman/listinfo/swift-corelibs-dev

[Philippe_Hausler]

You are probably missing the package libblocksruntime-dev. That would cause that failure.

···

Sent from my iPhone

On Jan 26, 2017, at 6:33 AM, Dennis Schafroth <dennis@schafroth.com> wrote:

Thanks for the suggestions.

It works with 3.0.2 but won't compile with 3.1 beta for Ubuntu 14.04. Missing a Block.h which does exist in 3.0.2

:-Dennis

On 26 Jan 2017, at 05.20, Philippe Hausler <phausler@apple.com> wrote:

We should run those tests with ASAN, I thought I had fixed that with the Sierra merge.

Sent from my iPhone

On Jan 25, 2017, at 6:11 PM, Will Stanton via swift-corelibs-dev <swift-corelibs-dev@swift.org> wrote:

Based on the backtrace, I think the code is running into a memory issue with Swift Foundation:
[SR-2485] Segmentation fault in Date · Issue #4331 · apple/swift-corelibs-foundation · GitHub
[SR-2462] Compiler is sometimes overreleasing CF objects · Issue #45067 · apple/swift · GitHub

I haven’t seen this in a while - are you able to try running on Swift 3.1 or 3.0.2?
Your code seems to work on the IBM Sandbox with 3.0.2 but not 3.0.1.
You could also try replacing every 'let’ with ‘var’ but that might not be the right solution :-)

Regards,
Will Stanton

On Jan 25, 2017, at 5:04 PM, Dennis Schafroth via swift-users <swift-users@swift.org> wrote:

Hi

Trying to do some simple date parsing from syslog format (“Jan 25 20:21:22”) into Date. Seem to work once but crashes on second call

func dateConv(_ dateString: String) -> Date? {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMM dd HH:mm"
dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
if let date = dateFormatter.date(from: dateString) {
print("Real date: \(date)" )
return date
}
return nil
}

var date = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

# swift main.swift
Real date: 2000-01-25 19:10:00 +0000
0 swift 0x000000000334ab78 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1 swift 0x0000000003349346 llvm::sys::RunSignalHandlers() + 54
2 swift 0x000000000334b6aa
3 libpthread.so.0 0x00007fec92166890
4 libswiftCore.so 0x00007fec8e8f0735
5 libFoundation.so 0x00007fec8c0ab6ee
6 libFoundation.so 0x00007fec8bd7a222
7 libFoundation.so 0x00007fec8bd7c623
8 libFoundation.so 0x00007fec8bf0e873 _TFC10Foundation6NSDateg11descriptionSS + 99
9 libFoundation.so 0x00007fec8c182829 _TTWV10Foundation4Dates23CustomStringConvertibleS_FS1_g11descriptionSS + 57
10 libswiftCore.so 0x00007fec8e78c745 _TFs15_print_unlockedu0_R_s16TextOutputStreamrFTxRq__T_ + 997

using swift 3.0.1. Am I doing something wrong? I seems to work on macOS.

cheers,
:-Dennis

_______________________________________________
swift-corelibs-dev mailing list
swift-corelibs-dev@swift.org
https://lists.swift.org/mailman/listinfo/swift-corelibs-dev