I get consistent test crashes with commit "dmsynth: Implement IDirectMusicSynth_(Download|Unload) for instruments." No crashes with the full MR `0024:fixme:dmsynth:synth_Download (00D634B0)->(0068FCD4, 00D62DBC, 6AAF3540): stub 0024:fixme:dmsynth:synth_Download Download type DMUS_DOWNLOADINFO_WAVE not yet supported dmusic.c:1146: Test failed: got 0x80004001 0024:fixme:dmsynth:synth_Download (00D634B0)->(0068FCD4, 00D62DBC, 6AAF3540): stub 0024:fixme:dmsynth:synth_Download Download type DMUS_DOWNLOADINFO_WAVE not yet supported dmusic.c:1148: Test failed: got 0x80004001 dmusic.c:1152: Test failed: got 0x88781120 dmusic.c:1153: Test failed: got DEADBEEF wine: Unhandled page fault on read access to DEADBEEF at address 00408C8C (thread 0024), starting debugger... Unhandled exception: page fault on read access to 0xdeadbeef in wow64 32-bit code (0x00408c8c). Register dump: CS:0023 SS:002b DS:002b ES:002b FS:0063 GS:006b EIP:00408c8c ESP:0068fd00 EBP:0068fd78 EFLAGS:00010202( R- -- I - - - ) EAX:deadbeef EBX:88781120 ECX:7bc0c33c EDX:00000000 ESI:0068fd34 EDI:0068fd50 Stack dump: 0x0068fd00: 00000000 0040d499 deadbeef 0040de28 0x0068fd10: 0068fd44 00000015 0068fd38 7bc49d1a 0x0068fd20: 7bc69520 003566a0 00000001 00000001 0x0068fd30: 00d62db0 deadbeef 00d62dbc 00d62f2c 0x0068fd40: deadbeef 00000040 00d62450 00d6265c 0x0068fd50: 00000000 cccccccc cccccccc cccccccc Backtrace: =>0 0x00408c8c test_port_download+0xa0d() [/home/michi/work/wine/dlls/dmusic/tests/dmusic.c:1154] in dmusic_test (0x0068fd78) 1 0x00408c8c func_dmusic+0x147c() [/home/michi/work/wine/dlls/dmusic/tests/dmusic.c:1341] in dmusic_test (0x0068fd78) 2 0x00409863 run_test+0xf3(name=<register EDI not accessible in this frame>) [/home/michi/work/wine/include/wine/test.h:707] in dmusic_test (0x0068fe18) 3 0x0040a890 main+0x240(argc=<couldn't compute location>, argv=<couldn't compute location>) [/home/michi/work/wine/include/wine/test.h:824] in dmusic_test (0x0068fee8) 4 0x0040a604 mainCRTStartup+0x74() [/home/michi/work/wine/dlls/msvcrt/crt_main.c:60] in dmusic_test (0x0068ff30) 5 0x7b828a70 in kernel32 (+0x28a70) (0x0068ff48) 6 0x7bc59627 in ntdll (+0x59627) (0x0068ff5c) 7 0x7bc59e48 in ntdll (+0x59e48) (0x0068ffec) 0x00408c8c func_dmusic+0x147c [/home/michi/work/wine/dlls/dmusic/tests/dmusic.c:1341] in dmusic_test: mov (%eax), %edx 1341 test_synthport(); `