# VTK9/OSMesa21/LLVM12 MacOS Crash

**URL:** https://discourse.vtk.org/t/vtk9-osmesa21-llvm12-macos-crash/8545
**Category:** Support
**Created:** [May 23, 2022, 12:35am UTC](https://discourse.vtk.org/t/vtk9-osmesa21-llvm12-macos-crash/8545 "2022-05-23T00:35:25Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![Spacetracker](https://discourse.vtk.org/user_avatar/discourse.vtk.org/spacetracker/32/8121_2.png) [@Spacetracker](https://discourse.vtk.org/u/Spacetracker)
#### Post date: [May 23, 2022, 12:35am UTC](https://discourse.vtk.org/t/vtk9-osmesa21-llvm12-macos-crash/8545/1 "2022-05-23T00:35:25Z")

</div>

I have built several generations of VTK with OSMesa for offscreen rendering on Linux servers, and several versions of VTK on MacOS for Cocoa from source over the years. I recently built VTK with the latest versions above on Linux successfully, and with Cocoa. However, my attempted duplicate and careful OSMesa/LLVM build on MacOS Catalina 10.15.7 with gcc@9 crashes. I was not allowed to upload the crash so it is below. I applied some of the suggested workarounds on this and other forums. I don’t know why it is even calling this library because I am writing PNG images but not reading any. I followed these instructions, the major difference being meson and ninja. [https://www.paraview.org/Wiki/ParaView/ParaView\_And\_Mesa\_3D](https://www.paraview.org/Wiki/ParaView/ParaView_And_Mesa_3D). Thanks.

(base) iMac-Pro:ImplicitFunctions rspencer$ time ~/Projects/VTKgcc/vtkINSTALL/bin/vtkpython Alveoli.py  
vtkpython(52511,0x10e5d1dc0) malloc: \*\*\* error for object 0x110b5a5e0: pointer being freed was not allocated  
vtkpython(52511,0x10e5d1dc0) malloc: \*\*\* set a breakpoint in malloc\_error\_break to debug

Loguru caught a signal: SIGABRT  
( 0.060s) [main thread] :0 FATL| Signal: SIGABRT  
Process: vtkpython [52511]  
Path: /Users/USER/\*/vtkpython  
Identifier: vtkpython  
Version: 0  
Code Type: X86-64 (Native)  
Parent Process: bash [1983]  
Responsible: Terminal [1590]  
User ID: 1823

Date/Time: 2022-05-22 19:22:56.105 -0400  
OS Version: Mac OS X 10.15.7 (19H1824)  
Report Version: 12  
Bridge OS Version: 6.4 (19P4242)  
Anonymous UUID: 42F69EF7-F61C-8EE4-F997-10F90756BB17

Time Awake Since Boot: 14000 seconds

System Integrity Protection: enabled

Crashed Thread: 0 main thread Dispatch queue: com.apple.main-thread

Exception Type: EXC\_CRASH (SIGABRT)  
Exception Codes: 0x0000000000000000, 0x0000000000000000  
Exception Note: EXC\_CORPSE\_NOTIFY

Application Specific Information:  
/Users/rspencer/Projects/VTKgcc/vtkINSTALL/lib/python3.9/site-packages/vtkmodules/…/…/…/libvtkDICOMParser-9.1.1.dylib  
abort() called  
vtkpython(52511,0x10e5d1dc0) malloc: \*\*\* error for object 0x110b5a5e0: pointer being freed was not allocated

Thread 0 Crashed:: main thread Dispatch queue: com.apple.main-thread  
0 libsystem\_kernel.dylib 0x00007fff7349e32a \_\_pthread\_kill + 10  
1 libsystem\_pthread.dylib 0x00007fff7355ae60 pthread\_kill + 430  
2 libsystem\_c.dylib 0x00007fff73425808 abort + 120  
3 libsystem\_malloc.dylib 0x00007fff7351b50b malloc\_vreport + 548  
4 libsystem\_malloc.dylib 0x00007fff7351e40f malloc\_report + 151  
5 libstdc++.6.dylib 0x000000010d7be6bd std::locale::\_Impl::~\_Impl() + 109  
6 libstdc++.6.dylib 0x000000010d7be7e1 std::locale::operator=(std::locale const&) + 81  
7 libstdc++.6.dylib 0x000000010d7bbf3c std::ios\_base::\_M\_init() + 60  
8 libstdc++.6.dylib 0x000000010d81bff1 std::basic\_ios\<char, std::char\_traits \>::init(std::basic\_streambuf\<char, std::char\_traits \>_) + 17  
9 libstdc++.6.dylib 0x00000001109b77c7 std::ios\_base::Init::Init() (.part.0) + 663  
10 libvtkDICOMParser-9.1.9.1.0.dylib 0x0000000110d26f50 \_GLOBAL\_\_sub\_I\_DICOMAppHelper.cxx + 16  
11 dyld 0x000000010e521353 ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) + 535  
12 dyld 0x000000010e52175e ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) + 40  
13 dyld 0x000000010e51c17b ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const_, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 493  
14 dyld 0x000000010e51c0e6 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const\*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 344  
15 dyld 0x000000010e51c0e6 ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const\*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 344  
16 dyld 0x000000010e51a234 ImageLoader::processInitializers(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 188  
17 dyld 0x000000010e51a2d4 ImageLoader::runInitializers(ImageLoader::LinkContext const&, ImageLoader::InitializerTimingList&) + 82  
18 dyld 0x000000010e50bef2 dyld::runInitializers(ImageLoader\*) + 82  
19 dyld 0x000000010e51601b dlopen\_internal + 609  
20 libdyld.dylib 0x00007fff73341d8a dlopen + 171  
21 libpython3.9.dylib 0x000000010cb91ca1 \_imp\_create\_dynamic + 1553  
22 libpython3.9.dylib 0x000000010ca84503 cfunction\_vectorcall\_FASTCALL + 99  
23 libpython3.9.dylib 0x000000010cb552c2 \_PyEval\_EvalFrameDefault + 44690  
24 libpython3.9.dylib 0x000000010cb48fcd \_PyEval\_EvalCode + 557  
25 libpython3.9.dylib 0x000000010ca28f61 \_PyFunction\_Vectorcall + 433  
26 libpython3.9.dylib 0x000000010cb5754c call\_function + 172  
27 libpython3.9.dylib 0x000000010cb5507d \_PyEval\_EvalFrameDefault + 44109  
28 libpython3.9.dylib 0x000000010ca28ea8 \_PyFunction\_Vectorcall + 248  
29 libpython3.9.dylib 0x000000010cb5754c call\_function + 172  
30 libpython3.9.dylib 0x000000010cb54fd7 \_PyEval\_EvalFrameDefault + 43943  
31 libpython3.9.dylib 0x000000010ca28ea8 \_PyFunction\_Vectorcall + 248  
32 libpython3.9.dylib 0x000000010cb5754c call\_function + 172  
33 libpython3.9.dylib 0x000000010cb550b3 \_PyEval\_EvalFrameDefault + 44163  
34 libpython3.9.dylib 0x000000010ca28ea8 \_PyFunction\_Vectorcall + 248  
35 libpython3.9.dylib 0x000000010cb5754c call\_function + 172  
36 libpython3.9.dylib 0x000000010cb550b3 \_PyEval\_EvalFrameDefault + 44163  
37 libpython3.9.dylib 0x000000010ca28ea8 \_PyFunction\_Vectorcall + 248  
38 libpython3.9.dylib 0x000000010cb5754c call\_function + 172  
39 libpython3.9.dylib 0x000000010cb550b3 \_PyEval\_EvalFrameDefault + 44163  
40 libpython3.9.dylib 0x000000010ca28ea8 \_PyFunction\_Vectorcall + 248  
41 libpython3.9.dylib 0x000000010ca2a68a object\_vacall + 474  
42 libpython3.9.dylib 0x000000010ca2a92d \_PyObject\_CallMethodIdObjArgs + 253  
43 libpython3.9.dylib 0x000000010cb8c7e1 PyImport\_ImportModuleLevelObject + 1217  
44 libpython3.9.dylib 0x000000010cb52924 \_PyEval\_EvalFrameDefault + 34036  
45 libpython3.9.dylib 0x000000010cb48fcd \_PyEval\_EvalCode + 557  
46 libpython3.9.dylib 0x000000010cbb7e01 pyrun\_file + 321  
47 libpython3.9.dylib 0x000000010cbb765a pyrun\_simple\_file + 394  
48 libpython3.9.dylib 0x000000010cbb747d PyRun\_SimpleFileExFlags + 109  
49 libpython3.9.dylib 0x000000010cbdf389 pymain\_run\_file + 329  
50 libpython3.9.dylib 0x000000010cbde92b pymain\_run\_python + 443  
51 libpython3.9.dylib 0x000000010cbde715 Py\_RunMain + 37  
52 libpython3.9.dylib 0x000000010cbdfdc1 pymain\_main + 49  
53 libpython3.9.dylib 0x000000010cbdfd68 Py\_Main + 56  
54 libvtkPythonInterpreter-9.1.9.1.0.dylib 0x000000010c9299bb vtkPythonInterpreter::PyMain(int, char\*\*) + 491 (vtkPythonInterpreter.cxx:555)  
55 vtkpython 0x000000010c90dc9b main + 139 (basic\_string.h:226)  
56 libdyld.dylib 0x00007fff73356cc9 start + 1

Thread 0 crashed with X86 Thread State (64-bit):  
rax: 0x0000000000000000 rbx: 0x000000010e5d1dc0 rcx: 0x00007ffee32f2618 rdx: 0x0000000000000000  
rdi: 0x0000000000000307 rsi: 0x0000000000000006 rbp: 0x00007ffee32f2640 rsp: 0x00007ffee32f2618  
r8: 0x0000000000000000 r9: 0x0000000000000000 r10: 0x000000010e5d1dc0 r11: 0x0000000000000246  
r12: 0x0000000000000307 r13: 0x0000000000000050 r14: 0x0000000000000006 r15: 0x0000000000000016  
rip: 0x00007fff7349e32a rfl: 0x0000000000000246 cr2: 0x000000010e656220

Logical CPU: 0  
Error Code: 0x020000b8  
Trap Number: 133

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0x7fff73449000 - 0x7fff73496ff7 libsystem\_info.dylib (538) \<8A321605-5480-330B-AF9E-64E65DE61747\> /usr/lib/system/libsystem\_info.dylib  
0x7fff73497000 - 0x7fff734c3ff7 libsystem\_kernel.dylib (6153.141.59) /usr/lib/system/libsystem\_kernel.dylib  
0x7fff734c4000 - 0x7fff7350bfff libsystem\_m.dylib (3178) \<00F331F1-0D09-39B3-8736-1FE90E64E903\> /usr/lib/system/libsystem\_m.dylib  
0x7fff7350c000 - 0x7fff73533fff libsystem\_malloc.dylib (283.100.6) \<8549294E-4C53-36EB-99F3-584A7393D8D5\> /usr/lib/system/libsystem\_malloc.dylib  
0x7fff73534000 - 0x7fff73541ffb libsystem\_networkextension.dylib (1095.140.2) /usr/lib/system/libsystem\_networkextension.dylib  
0x7fff73542000 - 0x7fff7354bff7 libsystem\_notify.dylib (241.100.2) /usr/lib/system/libsystem\_notify.dylib  
0x7fff7354c000 - 0x7fff73554fef libsystem\_platform.dylib (220.100.1) \<009A7C1F-313A-318E-B9F2-30F4C06FEA5C\> /usr/lib/system/libsystem\_platform.dylib  
0x7fff73555000 - 0x7fff7355ffff libsystem\_pthread.dylib (416.100.3) \<62CB1A98-0B8F-31E7-A02B-A1139927F61D\> /usr/lib/system/libsystem\_pthread.dylib  
0x7fff73560000 - 0x7fff73564ff3 libsystem\_sandbox.dylib (1217.141.8) \<9BE68E25-D41B-30DD-A1F9-35506143DB2A\> /usr/lib/system/libsystem\_sandbox.dylib  
0x7fff73565000 - 0x7fff73567fff libsystem\_secinit.dylib (62.100.2) /usr/lib/system/libsystem\_secinit.dylib  
0x7fff73568000 - 0x7fff7356fffb libsystem\_symptoms.dylib (1238.120.2) \<702D0910-5C34-3D43-9631-8BD215DE4FE1\> /usr/lib/system/libsystem\_symptoms.dylib  
0x7fff73570000 - 0x7fff73586ff2 libsystem\_trace.dylib (1147.120.1) /usr/lib/system/libsystem\_trace.dylib  
0x7fff73588000 - 0x7fff7358dff7 libunwind.dylib (35.4) \<42B7B509-BAFE-365B-893A-72414C92F5BF\> /usr/lib/system/libunwind.dylib  
0x7fff7358e000 - 0x7fff735c3ffe libxpc.dylib (1738.140.3) \<8DA7D88F-AE2F-3BCF-8426-8D041E57A9AA\> /usr/lib/system/libxpc.dylib

External Modification Summary:  
Calls made by other processes targeting this process:  
task\_for\_pid: 0  
thread\_create: 0  
thread\_set\_state: 0  
Calls made by this process:  
task\_for\_pid: 0  
thread\_create: 0  
thread\_set\_state: 0  
Calls made by all processes on this machine:  
task\_for\_pid: 9122  
thread\_create: 0  
thread\_set\_state: 0

VM Region Summary:  
ReadOnly portion of Libraries: Total=461.1M resident=0K(0%) swapped\_out\_or\_unallocated=461.1M(100%)  
Writable regions: Total=293.0M written=0K(0%) resident=0K(0%) swapped\_out=0K(0%) unallocated=293.0M(100%)

```
                            VIRTUAL REGION 

```

REGION TYPE SIZE COUNT (non-coalesced)  
=========== ======= =======  
Activity Tracing 256K 1  
Kernel Alloc Once 8K 1  
MALLOC 44.1M 15  
MALLOC guard page 24K 5  
MALLOC\_MEDIUM (reserved) 240.0M 2 reserved VM address space (unallocated)  
STACK GUARD 56.0M 1  
Stack 8192K 1  
VM\_ALLOCATE 4K 1  
\_\_DATA 4635K 88  
\_\_DATA\_CONST 1208K 32  
\_\_LINKEDIT 412.6M 61  
\_\_OBJC\_RO 32.3M 1  
\_\_OBJC\_RW 1860K 2  
\_\_TEXT 48.7M 82  
\_\_UNICODE 564K 1  
shared memory 12K 3  
=========== ======= =======  
TOTAL 850.1M 297  
TOTAL, minus reserved VM space 610.1M 297

---

<div class="post-metadata">

### Author: ![Spacetracker](https://discourse.vtk.org/user_avatar/discourse.vtk.org/spacetracker/32/8121_2.png) [@Spacetracker](https://discourse.vtk.org/u/Spacetracker)
#### Post date: [May 24, 2022, 12:40am UTC](https://discourse.vtk.org/t/vtk9-osmesa21-llvm12-macos-crash/8545/2 "2022-05-24T00:40:21Z")

</div>

I tried to edit, but had to reply.

Progress Update: I simplified my PNG output method and rebuilt everything (VTK/OSMesa/LLVM) on the Mac. Using the same VTK script on both systems, Linux definitely uses the OSMesa renderer but I don’t see the same llvm threads or extra CPU utilization on the Mac. But I can avoid crashes as of this writing. I used the vtkGraphicsFactory on the Mac to give it an extra push, but if there are other ways to force or observe the OSMesa/LLVM renderer on a Mac, please let me know. I think I can continue my project with what I have though, which is to use MPI. Thanks.

---

<div class="post-metadata">

### Author: ![Spacetracker](https://discourse.vtk.org/user_avatar/discourse.vtk.org/spacetracker/32/8121_2.png) [@Spacetracker](https://discourse.vtk.org/u/Spacetracker)
#### Post date: [May 27, 2022, 9:24pm UTC](https://discourse.vtk.org/t/vtk9-osmesa21-llvm12-macos-crash/8545/3 "2022-05-27T21:24:22Z")

</div>

Software/llvmpipe rendering with g++ is working on the Mac. I had to use Xcode Instruments to see the llvm threads but there is not much difference in run-time for my current scene, but it is working. It took quite a few iterations of and workarounds for lllvm/OSMesa rebuilds to get past the original crash.