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UnsafePointer Crash #241

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zaigham-mt opened this issue Nov 23, 2015 · 15 comments
Closed

UnsafePointer Crash #241

zaigham-mt opened this issue Nov 23, 2015 · 15 comments
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@zaigham-mt
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Thread : Crashed: com.apple.root.default-qos
0 CoreFoundation 0x1845a0e00 __CFStringCreateImmutableFunnel3 + 32
1 CoreFoundation 0x18452caa0 CFStringCreateFromExternalRepresentation + 104
2 CoreFoundation 0x18452caa0 CFStringCreateFromExternalRepresentation + 104
3 Foundation 0x185449a38 -[NSPlaceholderString initWithData:encoding:] + 148
4 MyTestApp-Dev 0x1001e5ab0 specialized WebSocket.(processResponse in _02D691C80E51B897C380608DCFC8AEE6)(WebSocket.WSResponse) -> Bool (WebSocket.swift)
5 MyTestApp-Dev 0x1001e1b20 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:574)
6 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
7 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
8 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
9 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
10 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
11 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
12 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
13 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
14 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
15 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
16 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
17 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
18 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
19 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
20 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
21 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
22 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
23 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
24 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
25 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
26 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
27 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
28 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
29 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
30 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
31 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
32 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
33 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
34 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
35 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
36 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
37 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
38 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
39 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
40 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
41 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
42 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
43 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
44 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
45 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
46 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
47 MyTestApp-Dev 0x1001e1ba4 WebSocket.(processRawMessage in _02D691C80E51B897C380608DCFC8AEE6)(UnsafePointer, bufferLen : Int) -> () (WebSocket.swift:591)
@nuclearace
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Does this only happen with optimizations on? If so it's a known bug that can only be fixed by lowering optimizations

@zaigham-mt
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Optimization level is set to None. We have tried it for Fast but using that crash was more frequent.

@nuclearace
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Do you know what message it's crashing on

@NachoSoto
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Does this only happen with optimizations on? If so it's a known bug that can only be fixed by lowering optimizations

Curious: where are you tracking thus known bug? I'd like to bring it to the attention of the Swift compiler team if it's really a bug.

@nuclearace
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daltoniam/Starscream#77

@zaigham-mt
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We have tried it for optimizations off and on , but still have crashes.

On Mon, Nov 23, 2015 at 8:55 PM, NachoSoto [email protected] wrote:

Does this only happen with optimizations on? If so it's a known bug that
can only be fixed by lowering optimizations

Curious: where are you tracking thus known bug? I'd like to bring it to
the attention of the Swift compiler team if it's really a bug.

—
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#241 (comment)
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Best Regards

Zaigham Maqsood
skype: zaigham.maqsood

@nuclearace
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Then I'll need to know what message it's crashing on

@civocr
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civocr commented Nov 24, 2015

I'm getting the same type of crash on the following line:

if dataLength == 127 {
let bytes = UnsafePointer((buffer+offset))
** dataLength = bytes[0].bigEndian **

Socket_IO_Client_Swift`Socket_IO_Client_Swift.WebSocket.(buffer=, bufferLen=, self=) (Socket_IO_Client_Swift.WebSocket)(Swift.UnsafePointer<Swift.UInt8>, bufferLen : Swift.Int) -> () + 5948 at WebSocket.swift:495, queue = 'com.apple.root.default-qos', stop reason = EXC_BAD_ACCESS (code=EXC_ARM_DA_ALIGN, address=0x16a3880a)

It only seems to crash if I'm using an SSL connection. Optimisation is set to None -00

@zaigham-mt
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I am getting same message as civocr.

On Tue, Nov 24, 2015 at 7:01 AM, civocr [email protected] wrote:

I'm getting the same type of crash on the following line:

if dataLength == 127 {
let bytes = UnsafePointer((buffer+offset))
** dataLength = bytes[0].bigEndian **

Socket_IO_Client_Swift`Socket_IO_Client_Swift.WebSocket.(buffer=,
bufferLen=, self=) (Socket_IO_Client_Swift.WebSocket)(Swift.UnsafePointer,
bufferLen : Swift.Int) -> () + 5948 at WebSocket.swift:495, queue =
'com.apple.root.default-qos', stop reason = EXC_BAD_ACCESS
(code=EXC_ARM_DA_ALIGN, address=0x16a3880a)

It only seems to crash if I'm using an SSL connection. Optimisation is set
to None -00

—
Reply to this email directly or view it on GitHub
#241 (comment)
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Best Regards

Zaigham Maqsood
skype: zaigham.maqsood

@zaigham-mt
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Some times I am getting another crash.Attached screenshot.

warning: could not load any Objective-C class information from the dyld
shared cache. This will significantly reduce the quality of type
information available.

On Tue, Nov 24, 2015 at 3:13 PM, Zaigham Maqsood <
[email protected]> wrote:

I am getting same message as civocr.

On Tue, Nov 24, 2015 at 7:01 AM, civocr [email protected] wrote:

I'm getting the same type of crash on the following line:

if dataLength == 127 {
let bytes = UnsafePointer((buffer+offset))
** dataLength = bytes[0].bigEndian **

Socket_IO_Client_Swift`Socket_IO_Client_Swift.WebSocket.(buffer=,
bufferLen=, self=) (Socket_IO_Client_Swift.WebSocket)(Swift.UnsafePointer,
bufferLen : Swift.Int) -> () + 5948 at WebSocket.swift:495, queue =
'com.apple.root.default-qos', stop reason = EXC_BAD_ACCESS
(code=EXC_ARM_DA_ALIGN, address=0x16a3880a)

It only seems to crash if I'm using an SSL connection. Optimisation is
set to None -00

—
Reply to this email directly or view it on GitHub
#241 (comment)
.

Best Regards

Zaigham Maqsood
skype: zaigham.maqsood

Best Regards

Zaigham Maqsood
skype: zaigham.maqsood

@nuclearace nuclearace mentioned this issue Nov 24, 2015
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@nuclearace
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Can't reproduce on OS X

@zaigham-mt
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I am getting it for IOS 9.0.

On Tue, Nov 24, 2015 at 10:30 PM, Erik Little [email protected]
wrote:

Can't reproduce on OS X

—
Reply to this email directly or view it on GitHub
#241 (comment)
.

Best Regards

Zaigham Maqsood
skype: zaigham.maqsood

@zaigham-mt
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on line s.delegate?.websocketDidReceiveMessage(s, text: str! as String) getting EXC_Bad_Access

@guilhermeKodama
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I am getting the same error when streaming a sensor signal in a high frequency (1k/s)
"could not load any Objective-C class information. This will significantly reduce the quality of type information available."

@nuclearace
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Hopefully a patch in the WebSocket library will fix it

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@NachoSoto @civocr @nuclearace @guilhermeKodama @zaigham-mt