Bonjour,
Un rapport de crash serait plus parlant.
Et voila
Process: quicklookd [191]
Path: /System/Library/Frameworks/QuickLook.framework/Resources/quicklookd.app/Contents/MacOS/quicklookd
Identifier: com.apple.QuickLookDaemon
Version: 2.3 (327.6)
Build Info: QuickLook-3270600~2
Code Type: X86-64 (Native)
Parent Process: launchd [165]
Date/Time: 2010-12-30 22:33:52.978 +0100
OS Version: Mac OS X 10.6.5 (10H574)
Report Version: 6
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread: 7 Dispatch queue: com.apple.root.default-priority
Application Specific Information:
Assertion failed: (count > 0), function decryptor_aes_refill, file PDF/Security/CGPDFDecryptor.c, line 178.
Thread 0: Dispatch queue: com.apple.main-thread
0 libSystem.B.dylib 0x00007fff80c4c2da mach_msg_trap + 10
1 libSystem.B.dylib 0x00007fff80c4c94d mach_msg + 59
2 com.apple.CoreFoundation 0x00007fff87778932 __CFRunLoopRun + 1698
3 com.apple.CoreFoundation 0x00007fff87777dbf CFRunLoopRunSpecific + 575
4 com.apple.QuickLookDaemon 0x0000000100003555 0x100000000 + 13653
5 com.apple.QuickLookDaemon 0x00000001000010a4 0x100000000 + 4260
Thread 1: Dispatch queue: com.apple.libdispatch-manager
0 libSystem.B.dylib 0x00007fff80c6516a kevent + 10
1 libSystem.B.dylib 0x00007fff80c6703d _dispatch_mgr_invoke + 154
2 libSystem.B.dylib 0x00007fff80c66d14 _dispatch_queue_invoke + 185
3 libSystem.B.dylib 0x00007fff80c6683e _dispatch_worker_thread2 + 252
4 libSystem.B.dylib 0x00007fff80c66168 _pthread_wqthread + 353
5 libSystem.B.dylib 0x00007fff80c66005 start_wqthread + 13
Thread 2:
0 libSystem.B.dylib 0x00007fff80c65f8a __workq_kernreturn + 10
1 libSystem.B.dylib 0x00007fff80c6639c _pthread_wqthread + 917
2 libSystem.B.dylib 0x00007fff80c66005 start_wqthread + 13
Thread 3:
0 libSystem.B.dylib 0x00007fff80c65f8a __workq_kernreturn + 10
1 libSystem.B.dylib 0x00007fff80c6639c _pthread_wqthread + 917
2 libSystem.B.dylib 0x00007fff80c66005 start_wqthread + 13
Thread 4:
0 libSystem.B.dylib 0x00007fff80c6516a kevent + 10
1 com.apple.QuickLookDaemon 0x00000001000073ff 0x100000000 + 29695
2 com.apple.Foundation 0x00007fff868ea0a5 __NSThread__main__ + 1429
3 libSystem.B.dylib 0x00007fff80c85536 _pthread_start + 331
4 libSystem.B.dylib 0x00007fff80c853e9 thread_start + 13
Thread 5:
0 libSystem.B.dylib 0x00007fff80c4c316 semaphore_wait_trap + 10
1 libSystem.B.dylib 0x00007fff80c88669 _dispatch_semaphore_wait_slow + 211
2 libSystem.B.dylib 0x00007fff80c8849d _dispatch_barrier_sync_f_slow + 134
3 com.apple.Foundation 0x00007fff86947298 -[NSOperationQueue operations] + 94
4 com.apple.QuickLookDaemon 0x00000001000277e8 0x100000000 + 161768
5 com.apple.QuickLookDaemon 0x0000000100026a54 0x100000000 + 158292
6 com.apple.QuickLookDaemon 0x00000001000096a9 0x100000000 + 38569
7 com.apple.CoreFoundation 0x00007fff877b6a49 __CFRunLoopDoBlocks + 297
8 com.apple.CoreFoundation 0x00007fff87778e76 __CFRunLoopRun + 3046
9 com.apple.CoreFoundation 0x00007fff87777dbf CFRunLoopRunSpecific + 575
10 com.apple.QuickLookDaemon 0x0000000100008127 0x100000000 + 33063
11 com.apple.Foundation 0x00007fff868ea0a5 __NSThread__main__ + 1429
12 libSystem.B.dylib 0x00007fff80c85536 _pthread_start + 331
13 libSystem.B.dylib 0x00007fff80c853e9 thread_start + 13
Thread 6:
0 libSystem.B.dylib 0x00007fff80c65ff8 start_wqthread + 0
Thread 7 Crashed: Dispatch queue: com.apple.root.default-priority
0 libSystem.B.dylib 0x00007fff80cbee4e __semwait_signal_nocancel + 10
1 libSystem.B.dylib 0x00007fff80cbed50 nanosleep$NOCANCEL + 129
2 libSystem.B.dylib 0x00007fff80d1b6a2 usleep$NOCANCEL + 57
3 libSystem.B.dylib 0x00007fff80d3acd4 abort + 93
4 libSystem.B.dylib 0x00007fff80d27c90 __pthread_markcancel + 0
5 com.apple.CoreGraphics 0x00007fff863b35e0 decryptor_aes_refill + 249
6 com.apple.CoreGraphics 0x00007fff86274240 CGPDFSourceRefill + 235
7 com.apple.CoreGraphics 0x00007fff8627491d pdf_lexer_scan + 103
8 com.apple.CoreGraphics 0x00007fff8627b816 CGPDFScannerScan + 199
9 com.apple.CoreGraphics 0x00007fff862fa7d8 CGPDFPageXInfoCreate + 133
10 com.apple.CoreGraphics 0x00007fff862fa730 CGPDFPageGetXInfo + 31
11 com.apple.CoreGraphics 0x00007fff862797b8 CGPDFDrawingContextDrawPage + 239
12 com.apple.CoreGraphics 0x00007fff8627967a CGContextDrawPDFPageWithProgressCallback + 100
13 com.apple.QuickLookFramework 0x00007fff87c80036 QLDrawPDFPage + 742
14 com.apple.qlgenerator.pdf 0x00000001000f25ef 0x1000f1000 + 5615
15 com.apple.QuickLookFramework 0x00007fff87c686ab _QLThumbnailRequestDispatch + 547
16 com.apple.QuickLookDaemon 0x00000001000092d0 0x100000000 + 37584
17 com.apple.QuickLookDaemon 0x0000000100009cf1 0x100000000 + 40177
18 com.apple.QuickLookFramework 0x00007fff87c61dd0 ___process_element_block_invoke_1 + 34
19 libSystem.B.dylib 0x00007fff80c882c4 _dispatch_call_block_and_release + 15
20 libSystem.B.dylib 0x00007fff80c66831 _dispatch_worker_thread2 + 239
21 libSystem.B.dylib 0x00007fff80c66168 _pthread_wqthread + 353
22 libSystem.B.dylib 0x00007fff80c66005 start_wqthread + 13
Thread 8:
0 libSystem.B.dylib 0x00007fff80c65ff8 start_wqthread + 0
Thread 9:
0 libSystem.B.dylib 0x00007fff80c65f8a __workq_kernreturn + 10
1 libSystem.B.dylib 0x00007fff80c6639c _pthread_wqthread + 917
2 libSystem.B.dylib 0x00007fff80c66005 start_wqthread + 13
Thread 7 crashed with X86 Thread State (64-bit):
rax: 0x000000000000003c rbx: 0x00000001033356a0 rcx: 0x0000000103335658 rdx: 0x0000000000000001
rdi: 0x0000000000000c03 rsi: 0x0000000000000000 rbp: 0x0000000103335690 rsp: 0x0000000103335658
r8: 0x0000000000000000 r9: 0x0000000000989680 r10: 0x0000000000000001 r11: 0x0000000000000246
r12: 0x0000000000000000 r13: 0x00007fff867ef597 r14: 0x00007fff867ef5b5 r15: 0x00007fff7020c750
rip: 0x00007fff80cbee4e rfl: 0x0000000000000247 cr2: 0x0000000102002000