TiFlash crash in high memory pressure environment

[flowbehappy]

Run chbenchmark with following settings:

max_memory_usage = 32212254720 # 30 GB
max_memory_usage_for_all_queries = 32212254720 # 30 GB

Stack trace:

[2022/01/19 23:42:31.275 +00:00] [ERROR] [<unknown>] ["BaseDaemon:(from thread 19404) Terminate called after throwing an instance of DB::ErrnoException
\nCode: 239, e.displayText() = DB::Exception: Allocator: Cannot munmap 16.00 EiB., errno: 22, strerror: Invalid argument, e.what() = DB::Exception
\nStack trace:
\n
\n0. /tiflash/tiflash(StackTrace::StackTrace()+0x16) [0x36c1d76]
\n1. /tiflash/tiflash() [0x6d4c83f]
\n2. /tiflash/tiflash(__cxxabiv1::__terminate(void (*)())+0x6) [0x8ab1966]
\n3. /tiflash/tiflash() [0x8ab2739]
\n4. /tiflash/tiflash(__gxx_personality_v0+0x2e8) [0x8ab1098]
\n5. /tiflash/tiflash() [0x8b47873]
\n6. /tiflash/tiflash() [0x8b483ae]
\n7. /tiflash/tiflash(Allocator<false>::free(void*, unsigned long)+0x115) [0x36d8a95]
\n8. /tiflash/tiflash(DB::DM::DeltaTree<DB::DM::EmptyValueSpace, 55ul, 20ul, 3ul, DB::ArenaWithFreeLists>::~DeltaTree()+0x1c2) [0x767c1c2]
\n9. /tiflash/tiflash() [0x36e2bd2]
\n10. /tiflash/tiflash(std::_Sp_counted_ptr_inplace<DB::DM::DeltaValueSnapshot, std::allocator<DB::DM::DeltaValueSnapshot>, (__gnu_cxx::_Lock_policy)2>::_M_dispose()+0x2f1) [0x76811c1]
\n11. /tiflash/"] [thread_id=19402]