I noticed that if I have `monerod` syncing and `xmrig` running at the same time (even not using all threads), I start seeing lots of:

```
src/common/stack_trace.cpp:133  Exception: std::runtime_error
src/common/stack_trace.cpp:135  Unwound call stack:
src/common/stack_trace.cpp:172      [1]  0x117) [0x55e296975817]:__wrap___cxa_throw+0x117) [0x55e296975817]
src/common/stack_trace.cpp:172      [2] monerod(+0x4a67ab) [0x55e2964c87ab]
src/common/stack_trace.cpp:172      [3]  0x33) [0x55e296ce80c3]:_ZN7randomx6VmBaseINS_18LargePageAllocatorELb0EE8allocateEv+0x33) [0x55e296ce80c3]
src/common/stack_trace.cpp:172      [4]  0xde) [0x55e296ce542e]:_create_vm+0xde) [0x55e296ce542e]
src/common/stack_trace.cpp:172      [5]  0x4cc) [0x55e29693027c]:_slow_hash+0x4cc) [0x55e29693027c]
src/common/stack_trace.cpp:172      [6]  0x12a) [0x55e296919c4a]:_ZN10cryptonote18get_block_longhashEPKNS_10BlockchainERKNS_5blockERN6crypto4hashEmPKS7_i+0x12a) [0x55e296919c4a]
src/common/stack_trace.cpp:172      [7]  0x26) [0x55e296919d96]:_ZN10cryptonote18get_block_longhashEPKNS_10BlockchainERKNS_5blockEmi+0x26) [0x55e296919d96]
src/common/stack_trace.cpp:172      [8]  0xb6) [0x55e2968bbba6]:_ZNK10cryptonote10Blockchain21block_longhash_workerEmRKN4epee4spanIKNS_5blockEEERSt13unordered_mapIN6crypto4hashESA_St4hashISA_ESt8equal_toISA_ESaISt4pairIKSA_SA_EEE+0xb6) [0x55e2968bbba6]
src/common/stack_trace.cpp:172      [9]  0x471) [0x55e29696ef41]:_ZN5tools10threadpool3runEb+0x471) [0x55e29696ef41]
src/common/stack_trace.cpp:172      [10] monerod(+0xf34c8b) [0x55e296f56c8b]
src/common/stack_trace.cpp:172      [11]  0x9609) [0x7fbaff127609]:_64-linux-gnu/libpthread.so.0(+0x9609) [0x7fbaff127609]
src/common/stack_trace.cpp:172      [12]  0x43) [0x7fbaff04e293]:_64-linux-gnu/libc.so.6(clone+0x43) [0x7fbaff04e293]
```

from https://github.com/monero-project/monero/issues/6696, it seems like those are just "warnings" - is that right?