AMD Segmentation fault

[powturns]

On AMD, while processing a particularly large dataset, I'm experiencing a segfault during the edge collapse phase. This doesn't appear to occur on intel.

Eg:

./dem2mesh -inputFile mesh_dsm.tif -outputFile odm_25dmesh.dirty.ply -maxTileLength 2000 -maxVertexCount 200000 -edgeSwapThreshold 0.15 -verbose

... snip ...

iteration 90 - triangles 5391543 threshold 6.95688
iteration 95 - triangles 4981377 threshold 9.03921
Performing edge collapses...
[1]    438838 segmentation fault (core dumped)  ./dem2mesh -inputFile mesh_dsm.tif -outputFile odm_25dmesh.dirty.ply  2000  

I'm experiencing this crash when using opendronemap/nodeodm image as well as building dem2mesh manually.

lscpu
Architecture:            x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Address sizes:         48 bits physical, 48 bits virtual
  Byte Order:            Little Endian
CPU(s):                  32
  On-line CPU(s) list:   0-31
Vendor ID:               AuthenticAMD
  Model name:            AMD Ryzen 9 7950X 16-Core Processor
    CPU family:          25
    Model:               97
    Thread(s) per core:  2
    Core(s) per socket:  16
    Socket(s):           1
    Stepping:            2
    Frequency boost:     enabled
    CPU(s) scaling MHz:  52%
    CPU max MHz:         5879.8818
    CPU min MHz:         3000.0000
    BogoMIPS:            8983.39
    Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe
                         1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 s
                         se4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch os
                         vw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba perfmon_v2 ibrs 
                         ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb a
                         vx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local avx512_bf16 clzero
                          irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter p
                         fthreshold avic v_vmsave_vmload vgif v_spec_ctrl avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bita
                         lg avx512_vpopcntdq rdpid overflow_recov succor smca fsrm flush_l1d
Virtualization features: 
  Virtualization:        AMD-V
Caches (sum of all):     
  L1d:                   512 KiB (16 instances)
  L1i:                   512 KiB (16 instances)
  L2:                    16 MiB (16 instances)
  L3:                    64 MiB (2 instances)
NUMA:                    
  NUMA node(s):          1
  NUMA node0 CPU(s):     0-31

[powturns]

Core dump info:

warning: Section `.reg-xstate/457825' in core file too small.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
--Type <RET> for more, q to quit, c to continue without paging--
Core was generated by `./dem2mesh -inputFile mesh_dsm.tif -outputFile odm_25dmesh.dirty.ply -maxTileLe'.
Program terminated with signal SIGSEGV, Segmentation fault.
warning: Section `.reg-xstate/457825' in core file too small.
#0  0x000055bbd086d5f8 in Vertex::VT() const ()
[Current thread is 1 (Thread 0x7f28f91a3640 (LWP 457825))]