Currently, Performance Profiler causes program crash when profiling code using Fibers API (see Case #00169159: Program halts when run under Performance Profiler).
To reproduce:
1) Compile attached Delphi program.
Note it uses Fiber API to implement generator:
https://msdn.microsoft.com/en-us/library/ms682661.aspx
2) Run it. The output is
2
3
5
3) Open in AQTime, select Performance Profiler, All Project Modules. Run.
The program halts. Event View window shows:
Event Thread ID Time
Project run selected, current profiler is Performance Profiler. 18:27:24:533
Process create ID: 5572, Thread ID: 8316, Base address: 0x00400000 8316 18:27:24:544
Module loaded: fiberdemo.exe; Base address: 0x00400000 File Size: 1155763 Version: 0.0.0.0 8316 18:27:24:545
Module loaded: C:\Windows\SysWOW64\ntdll.dll; Base address: 0x778D0000 File Size: 1535032 Version: 10.0.10240.16683 8316 18:27:24:549
Module loaded: C:\Windows\SysWOW64\kernel32.dll; Base address: 0x751F0000 File Size: 624312 Version: 10.0.10240.16384 8316 18:27:24:551
Module loaded: C:\Windows\SysWOW64\KernelBase.dll; Base address: 0x75540000 File Size: 1531368 Version: 10.0.10240.16683 8316 18:27:24:552
Module loaded: C:\Windows\SysWOW64\oleaut32.dll; Base address: 0x76CA0000 File Size: 591912 Version: 10.0.10240.16384 8316 18:27:24:623
Module loaded: C:\Windows\SysWOW64\msvcrt.dll; Base address: 0x74EF0000 File Size: 773168 Version: 7.0.10240.16384 8316 18:27:24:624
Thread create ID: 4916; Priority: Normal 4916 18:27:24:626
Module loaded: C:\Windows\SysWOW64\combase.dll; Base address: 0x74BB0000 File Size: 1811360 Version: 10.0.10240.16683 8316 18:27:24:942
Module loaded: C:\Windows\SysWOW64\rpcrt4.dll; Base address: 0x77820000 File Size: 705520 Version: 10.0.10240.16412 8316 18:27:25:023
Module loaded: C:\Windows\SysWOW64\sspicli.dll; Base address: 0x749E0000 File Size: 116216 Version: 10.0.10240.16384 8316 18:27:25:024
Module loaded: C:\Windows\SysWOW64\cryptbase.dll; Base address: 0x749D0000 File Size: 31528 Version: 10.0.10240.16384 8316 18:27:25:031
Module loaded: C:\Windows\SysWOW64\bcryptprimitives.dll; Base address: 0x74970000 File Size: 365128 Version: 10.0.10240.16384 8316 18:27:25:032
Module loaded: C:\Windows\SysWOW64\sechost.dll; Base address: 0x74FB0000 File Size: 263432 Version: 10.0.10240.16384 8316 18:27:25:033
Thread create ID: 4712; Priority: Normal 4712 18:27:25:034
Thread create ID: 8616; Priority: Normal 8616 18:27:25:034
Module loaded: C:\Windows\SysWOW64\advapi32.dll; Base address: 0x75000000 File Size: 497896 Version: 10.0.10240.16644 8316 18:27:25:035
Module loaded: C:\Windows\SysWOW64\user32.dll; Base address: 0x752E0000 File Size: 1310880 Version: 10.0.10240.16603 8316 18:27:25:038
Module loaded: C:\Windows\SysWOW64\gdi32.dll; Base address: 0x74D70000 File Size: 1365576 Version: 10.0.10240.16644 8316 18:27:25:039
Module loaded: C:\Windows\SysWOW64\imm32.dll; Base address: 0x777F0000 File Size: 168400 Version: 10.0.10240.16384 8316 18:27:25:042
Module loaded: C:\Windows\SysWOW64\msctf.dll; Base address: 0x75420000 File Size: 1180696 Version: 10.0.10240.16683 8316 18:27:25:043
Module loaded: C:\Program Files (x86)\SmartBear\AQtime 8\Bin\Extensions\aqNatProf.dll; Base address: 0x30800000 File Size: 1470416 Version: 8.50.1720.7 8316 18:27:25:045
Module loaded: C:\Windows\SysWOW64\shell32.dll; Base address: 0x756C0000 File Size: 20858360 Version: 10.0.10240.16724 8316 18:27:25:046
Module loaded: C:\Windows\SysWOW64\windows.storage.dll; Base address: 0x76E80000 File Size: 5120056 Version: 10.0.10240.16515 8316 18:27:25:046
Module loaded: C:\Windows\SysWOW64\shlwapi.dll; Base address: 0x77360000 File Size: 274768 Version: 10.0.10240.16384 8316 18:27:25:046
Module loaded: C:\Windows\SysWOW64\kernel.appcore.dll; Base address: 0x74EC0000 File Size: 39792 Version: 10.0.10240.16384 8316 18:27:25:047
Module loaded: C:\Windows\SysWOW64\SHCore.dll; Base address: 0x75090000 File Size: 565656 Version: 10.0.10240.16384 8316 18:27:25:047
Module loaded: C:\Windows\SysWOW64\powrprof.dll; Base address: 0x76D40000 File Size: 269648 Version: 10.0.10240.16384 8316 18:27:25:048
Module loaded: C:\Windows\SysWOW64\profapi.dll; Base address: 0x77780000 File Size: 53728 Version: 10.0.10240.16384 8316 18:27:25:048
Module loaded: C:\Windows\SysWOW64\ole32.dll; Base address: 0x77570000 File Size: 952968 Version: 10.0.10240.16724 8316 18:27:25:049
Module loaded: C:\Windows\SysWOW64\version.dll; Base address: 0x748D0000 File Size: 27360 Version: 10.0.10240.16384 8316 18:27:25:049
Module loaded: C:\Windows\SysWOW64\winsta.dll; Base address: 0x6FFF0000 File Size: 261896 Version: 10.0.10240.16384 8316 18:27:25:052
Module loaded: C:\Windows\SysWOW64\utildll.dll; Base address: 0x5D400000 File Size: 39248 Version: 10.0.10240.16384 8316 18:27:25:053
Module loaded: C:\Windows\SysWOW64\setupapi.dll; Base address: 0x74A00000 File Size: 1733880 Version: 10.0.10240.16384 8316 18:27:25:053
Module loaded: C:\Windows\SysWOW64\cfgmgr32.dll; Base address: 0x773B0000 File Size: 214360 Version: 10.0.10240.16384 8316 18:27:25:054
Module loaded: C:\Windows\SysWOW64\srvcli.dll; Base address: 0x73BD0000 File Size: 73360 Version: 10.0.10240.16724 8316 18:27:25:055
Module loaded: C:\Windows\SysWOW64\browcli.dll; Base address: 0x702F0000 File Size: 43520 Version: 10.0.10240.16724 8316 18:27:25:055
Module loaded: C:\Windows\SysWOW64\samcli.dll; Base address: 0x702D0000 File Size: 65024 Version: 10.0.10240.16384 8316 18:27:25:056
Module loaded: C:\Windows\SysWOW64\netutils.dll; Base address: 0x73BF0000 File Size: 34600 Version: 10.0.10240.16384 8316 18:27:25:056
Module loaded: C:\Windows\SysWOW64\logoncli.dll; Base address: 0x73B80000 File Size: 179256 Version: 10.0.10240.16384 8316 18:27:25:057
Module loaded: C:\Program Files (x86)\SmartBear\AQtime 8\Bin\aqProf.dll; Base address: 0x10000000 File Size: 865232 Version: 8.50.1720.7 8316 18:27:25:061
Module loaded: C:\Windows\SysWOW64\netapi32.dll; Base address: 0x73C30000 File Size: 69232 Version: 10.0.10240.16724 8316 18:27:25:062
Module loaded: C:\Windows\SysWOW64\wkscli.dll; Base address: 0x73C00000 File Size: 55808 Version: 10.0.10240.16724 8316 18:27:25:062
Module loaded: C:\Windows\SysWOW64\bcrypt.dll; Base address: 0x73BB0000 File Size: 106896 Version: 10.0.10240.16384 8316 18:27:25:063
Module loaded: C:\Program Files (x86)\SmartBear\AQtime 8\Bin\aqComm.dll; Base address: 0x30200000 File Size: 254416 Version: 8.50.1720.7 8316 18:27:25:065
Module loaded: C:\Windows\SysWOW64\ws2_32.dll; Base address: 0x776C0000 File Size: 372912 Version: 10.0.10240.16384 8316 18:27:25:066
Module loaded: C:\Windows\SysWOW64\nsi.dll; Base address: 0x75080000 File Size: 20160 Version: 10.0.10240.16384 8316 18:27:25:066
Thread create ID: 9996; Priority: Normal 9996 18:27:25:068
Thread create ID: 4968; Priority: Normal 4968 18:27:25:068
First chance exception 0xC0000005 ACCESS_VIOLATION occurred at 0x00000000, read of address 0x00000000 at 0x00000000 8316 18:27:25:122
Second chance exception 0xC0000005 ACCESS_VIOLATION occurred at 0x656AD9C1, read of address 0x00000000 at 0x656AD9C1 8316 18:27:25:123
Thread exit ID: 9996; Exit code: -1073741819 (0xC0000005) 9996 18:27:26:818
Thread exit ID: 8316; Exit code: -1073741819 (0xC0000005) 8316 18:27:26:819
Thread exit ID: 4712; Exit code: -1073741819 (0xC0000005) 4712 18:27:26:821
Thread exit ID: 8616; Exit code: -1073741819 (0xC0000005) 8616 18:27:26:821
Thread exit ID: 4968; Exit code: -1073741819 (0xC0000005) 4968 18:27:26:821
Process exit ID: 5572; Exit code: -1073741819 (0xC0000005) 18:27:26:822
Debug symbols read for fiberdemo.exe 18:28:50:103
It is proposed that Performance Profiler correclty supports Fiber API.