Juce Demo AU Plugin crashes AU Lab


#1

Help! I’ve coded a plugin on the PC that works fine. So i compiled it on Mac OSX 10.4.10 with XCode and thought “great, it works”. But it sometimes it crashes in AULab.

I found out that the following procedure makes it crash:

  • Open AU Lab
  • Put the plugin as insert effect on the Default AU Lab Channel
  • Put the plugin as second insert effect on the same Channel
  • Quit AU Lab and save the file (name not important)

Bang! Wheel of death, crash. Press REPORT and read.

The same procedure also makes the JUCE Demo AU Plugin crash.

What is happening? My “system” is an IBook G4. I need to solve this issue quickly, so if anybody only has the slightest idea what is happening, please let me know.

Here’s the Report:

Date/Time: 2008-02-12 14:22:10.783 +0100
OS Version: 10.4.10 (Build 8R218)
Report Version: 4

Command: AU Lab
Path: /Developer/Applications/Audio/AU Lab.app/Contents/MacOS/AU Lab
Parent: WindowServer [56]

Version: 1.0.3 (1.0.3)
Build Version: 85
Project Name: PlayPen
Source Version: 250500

PID: 203
Thread: 0

Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_INVALID_ADDRESS (0x0001) at 0x7848093b

Thread 0 Crashed:
0 <<00000000>> 0xfffeff20 objc_msgSend_rtp + 32
1 com.apple.CoreFoundation 0x907c10cc __CFArrayReleaseValues + 640
2 com.apple.CoreFoundation 0x907c0e38 __CFArrayDeallocate + 284
3 com.apple.CoreFoundation 0x907bdf74 _CFRelease + 240
4 com.apple.Foundation 0x92bbc908 NSPopAutoreleasePool + 536
5 com.apple.Foundation 0x92bec778 +[NSAutoreleasePool releaseAllPools] + 60
6 com.apple.AppKit 0x93841438 -[NSApplication _deallocHardCore:] + 280
7 com.apple.AppKit 0x9383ffb4 -[NSApplication terminate:] + 520
8 com.apple.AppKit 0x9383dc4c -[NSApplication sendAction:to:from:] + 108
9 com.apple.AppKit 0x938984b8 -[NSMenu performActionForItemAtIndex:] + 392
10 com.apple.AppKit 0x9389823c -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] + 104
11 com.apple.AppKit 0x9379f500 _NSHandleCarbonMenuEvent + 372
12 com.apple.AppKit 0x9379ce64 _DPSNextEvent + 1280
13 com.apple.AppKit 0x9379c7a8 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 116
14 com.apple.AppKit 0x93798cec -[NSApplication run] + 472
15 com.apple.AppKit 0x9388987c NSApplicationMain + 452
16 com.apple.audio.aulab 0x00002a1c 0x1000 + 6684
17 com.apple.audio.aulab 0x00002720 0x1000 + 5920

Thread 1:
0 libSystem.B.dylib 0x9002c3c8 semaphore_wait_signal_trap + 8
1 libSystem.B.dylib 0x90030eac pthread_cond_wait + 480
2 com.apple.Foundation 0x92be730c -[NSConditionLock lockWhenCondition:] + 68
3 com.apple.AppKit 0x93839708 -[NSUIHeartBeat _heartBeatThread:] + 324
4 com.apple.Foundation 0x92be01a0 forkThreadForFunction + 108
5 libSystem.B.dylib 0x9002bd08 _pthread_body + 96

Thread 2:
0 libSystem.B.dylib 0x9000b348 mach_msg_trap + 8
1 libSystem.B.dylib 0x9000b29c mach_msg + 60
2 com.apple.CoreFoundation 0x907ddba8 __CFRunLoopRun + 832
3 com.apple.CoreFoundation 0x907dd4ac CFRunLoopRunSpecific + 268
4 com.apple.audio.CoreAudio 0x9145763c HALRunLoop::OwnThread(void*) + 264
5 com.apple.audio.CoreAudio 0x914573dc CAPThread::Entry(CAPThread*) + 96
6 libSystem.B.dylib 0x9002bd08 _pthread_body + 96

Thread 3:
0 libSystem.B.dylib 0x9002f08c kevent + 12
1 com.apple.DesktopServices 0x92af3eb0 TFSNotificationTask::FSNotificationTaskProc(void*) + 56
2 …ple.CoreServices.CarbonCore 0x90bc57b0 PrivateMPEntryPoint + 76
3 libSystem.B.dylib 0x9002bd08 _pthread_body + 96

Thread 4:
0 libSystem.B.dylib 0x9002c3c8 semaphore_wait_signal_trap + 8
1 libSystem.B.dylib 0x90030eac pthread_cond_wait + 480
2 …ple.CoreServices.CarbonCore 0x90bc59a0 MPWaitOnQueue + 224
3 com.apple.DesktopServices 0x92af452c TNodeSyncTask::SyncTaskProc(void*) + 116
4 …ple.CoreServices.CarbonCore 0x90bc57b0 PrivateMPEntryPoint + 76
5 libSystem.B.dylib 0x9002bd08 _pthread_body + 96

Thread 0 crashed with PPC Thread State 64:
srr0: 0x00000000fffeff20 srr1: 0x000000000200f030 vrsave: 0x0000000000000000
cr: 0x44044228 xer: 0x0000000020000000 lr: 0x00000000907c10cc ctr: 0x00000000fffeff00
r0: 0x00000000907c10cc r1: 0x00000000bfffe040 r2: 0x000000007848093b r3: 0x000000000502a130
r4: 0x0000000090aa9904 r5: 0x0000000000000005 r6: 0x00000000ffffffff r7: 0x0000000001915800
r8: 0x00000000000001e8 r9: 0x000000000191651c r10: 0x0000000000000079 r11: 0x000000006f549904
r12: 0x000000000003de4b r13: 0x0000000000000000 r14: 0x0000000000000000 r15: 0x0000000000000000
r16: 0x0000000000000000 r17: 0x00000000bffff2d0 r18: 0x0000000000000000 r19: 0x000000000047e800
r20: 0x00000000ffffffff r21: 0x00000000a37cc97c r22: 0x00000000bffff610 r23: 0x0000000000000001
r24: 0x00000000a07bd16c r25: 0x0000000005060fa0 r26: 0x0000000000000002 r27: 0x0000000005060fe8
r28: 0x0000000005060dd0 r29: 0x00000000a07bb150 r30: 0x0000000000000001 r31: 0x00000000907c0e5c

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Model: PowerBook6,3, BootROM 4.7.7f0, 1 processors, PowerPC G4 (3.3), 800 MHz, 640 MB
Graphics: ATI Mobility Radeon 9200, ATY,RV280M9+, AGP, 32 MB
Memory Module: DIMM0/BUILT-IN, 128 MB, built-in, built-in
Memory Module: DIMM1/J31, 512 MB, DDR SDRAM, PC2100U-25330
AirPort: AirPort Extreme, 405.1 (3.90.34.0.p18)
Modem: MicroDash, Euro, V.92, 1.0F, APPLE VERSION 2.6.6
Network Service: AirPort, AirPort, en1
Parallel ATA Device: MATSHITACD-RW CW-8123
Parallel ATA Device: FUJITSU MHT2030AT, 27.94 GB
USB Device: USB-PS/2 Optical Mouse, Logitech, Up to 1.5 Mb/sec, 500 mA


#2

There’s no juce code there at all… Most likely you’ve managed to corrupt some memory somewhere and that’s making it crash later on when the app starts to clean up its own objects.


#3

As written above, this also happens with the JUCE AU Demo Plugin, so it’s not my code only that crashes.

Edit: It also happens with Apple’s AUGraphicEQ. Has anybody else experienced this behaviour?