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Re: Crash inside CFFTP
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Re: Crash inside CFFTP

  • Subject: Re: Crash inside CFFTP
  • From: Dominik Pich <email@hidden>
  • Date: Wed, 27 Dec 2006 00:02:50 +0100
Im relatively new to objective C so please show patience if Im wrong but ... the traces (as I read it) shows an error accessing 0xxfffeff20. Which would indicate an invalid object maybe because of an error in reference counting!? Maybe an early release or a missing retain?

Just trying to be helpful :)
Dominik

Am Dec 26, 2006 um 9:17 PM schrieb Frederick Cheung:

I've got a user reporting frequent crashes with backtraces like the one below.
My reading of the source implies that the ftpContext->url would have to be null for this to happen, I fail to see how this could happen (surely this would cause a crash far earlier on)
Has anyone else seen anything similar or am I looking at a random memory stomper ?

Thanks,

Fred



Host Name:      imkPBG4
Date/Time:      2006-12-04 22:38:19.521 +0700
OS Version:     10.4.8 (Build 8L127)
Report Version: 4

Command: Speed Download
Path: /Applications/Speed Download 4/Speed Download.app/Contents/ MacOS/Speed Download
Parent: WindowServer [4227]

Version: 4.1.6 (4.1.6)

PID:    5353
Thread: 10

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000000


Thread 10 Crashed:
0 <<00000000>> 0xfffeff20 objc_msgSend_rtp + 32
1 com.apple.CoreFoundation 0x907cbdb8 CFURLCopyPath + 132
2 com.apple.CoreFoundation 0x907c15e0 CFURLCreateStringWithFileSystemPath + 276
3 com.apple.CFNetwork 0x90fb3280 _CreatePathForContext + 44
4 com.apple.CFNetwork 0x90fb554c _HandleRestart + 116
5 com.apple.CFNetwork 0x90fb361c _HandleResponse + 396
6 com.apple.CFNetwork 0x90fb18c8 _FTPResponseStreamCallBack + 368
7 com.apple.CFNetwork 0x90f9b3a4 connectionResponseCallBack + 116
8 com.apple.CoreFoundation 0x90829eb4 _CFStreamSignalEventSynch + 332
9 com.apple.CFNetwork 0x90faa240 _SocketCallBack + 956
10 com.apple.CoreFoundation 0x907f03b4 __CFSocketDoCallback + 532
11 com.apple.CoreFoundation 0x907f00d8 __CFSocketPerformV0 + 288
12 com.apple.CoreFoundation 0x907dd4cc __CFRunLoopDoSources0 + 384
13 com.apple.CoreFoundation 0x907dc9fc __CFRunLoopRun + 452
14 com.apple.CoreFoundation 0x907dc47c CFRunLoopRunSpecific + 268
15 com.apple.HIToolbox 0x93208740 RunCurrentEventLoopInMode + 264
16 com.apple.HIToolbox 0x93207dd4 ReceiveNextEventCommon + 380
17 com.apple.HIToolbox 0x9330c940 ReceiveNextEventInMode + 72

I've had a look at the corresponding _______________________________________________
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References: 


 >Crash inside CFFTP (From: Frederick Cheung <email@hidden>)






    

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