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MallocDebug "Unable to read malloc information from..."
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MallocDebug "Unable to read malloc information from..."


  • Subject: MallocDebug "Unable to read malloc information from..."
  • From: email@hidden
  • Date: Thu, 06 Sep 2007 18:43:28 -0700 (PDT)

Environment: Xcode 2.4.1
Code: ANSI C -- Project: Command-Line C as a Utility

I would like to observe malloc using the MallocDebug Performance Tool.

So I launch it within my project (no need to browse).

What I got was the alert:

"Unable to read malloc information from /Users/Ric/workarea/C_workspace/test/build/Debug/test".

The console said:
Sep  6 18:26:57 RicMac crashdump[630]: crash report written to: /Users/Ric/Library/Logs/CrashReporter/test.crash.log

The crash log has the following info:
Host Name:      RicMac
Date/Time:      2007-09-06 18:26:57.412 -0700
OS Version:     10.4.10 (Build 8R2218)
Report Version: 4

Command: test
Path:    /Users/Ric/workarea/C_workspace/test/build/Debug/test
Parent:  MallocDebug [626]

Version: ??? (???)

PID:    629
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000003

Thread 0 Crashed:
0   libSystem.B.dylib      	0x90002725 getenv + 78
1   libMallocDebug.A.dylib 	0x9ab60b9d MDmalloc + 67
2   test                   	0x00098ef6 myFunction + 32 (main.c:14)
3   test                   	0x00098f6b main + 65 (main.c:35)
4   test                   	0x00001e5a start + 258
5   test                   	0x00001d81 start + 41

..

So I created a NEW project, using just the template that says "Hello World".

The following is what the console said (notice no crash log):

Sep  6 18:31:54 RicMac mdimportserver[633]: /Users/Ric/workarea/C_workspace/whatis
Sep  6 18:31:54 RicMac mdimportserver[633]: Unable to open whatis Database
Sep  6 18:31:54 RicMac mdimportserver[633]: Man page not found in whatis database. Falling back

-----

Again, I got the same mallocdebug error alert.  This time without the crash log.

What am I missing, how can I fix this?

Ric.

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