Crash at leveldb::InternalFilterPolicy::CreateFilter （C++）

[Wagoni]

Using the latest leveldb, the runtime environment is Ubuntu22.04.

I have tried many times, the size of xxx.log and the program crashes every time it reaches 3M.

Below is the crash stack information：

Thread 9 "FiuSrc" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffef666640 (LWP 187845)]
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00005555556e6035 in leveldb::InternalFilterPolicy::CreateFilter (this=0x5555558202e0, keys=0x7fffd8013f20, n=272, dst=0x7fffd8010f80)
at /leveldb/db/dbformat.cc:110
#2 0x000055555570d9d7 in leveldb::FilterBlockBuilder::GenerateFilter (this=0x7fffd8010f40) at /leveldb/table/filter_block.cc:70
#3 0x000055555570d5fc in leveldb::FilterBlockBuilder::StartBlock (this=0x7fffd8010f40, block_offset=4106) at /leveldb/table/filter_block.cc:25
#4 0x00005555556fb15e in leveldb::TableBuilder::Flush (this=0x7fffd8010cb0) at /leveldb/table/table_builder.cc:137
#5 0x00005555556fafac in leveldb::TableBuilder::Add (this=0x7fffd8010cb0, key=..., value=...) at /leveldb/table/table_builder.cc:121
#6 0x000055555570adab in leveldb::BuildTable (dbname="Fiudb", env=0x555555800760 leveldb::Env::Default()::env_container, options=..., table_cache=0x55555581b670,
iter=0x7fffd8000ba0, meta=0x7fffef665970) at /leveldb/db/builder.cc:36
#7 0x00005555556d3b3a in leveldb::DBImpl::WriteLevel0Table (this=0x5555558202c0, mem=0x555555833aa0, edit=0x7fffef665a30, base=0x555555832390)
at /leveldb/db/db_impl.cc:519
#8 0x00005555556d3e83 in leveldb::DBImpl::CompactMemTable (this=0x5555558202c0) at /leveldb/db/db_impl.cc:557
#9 0x00005555556d4899 in leveldb::DBImpl::BackgroundCompaction (this=0x5555558202c0) at /leveldb/db/db_impl.cc:711
#10 0x00005555556d47e8 in leveldb::DBImpl::BackgroundCall (this=0x5555558202c0) at /leveldb/db/db_impl.cc:696
#11 0x00005555556d4734 in leveldb::DBImpl::BGWork (db=0x5555558202c0) at /leveldb/db/db_impl.cc:685
#12 0x00005555557065ef in leveldb::(anonymous namespace)::PosixEnv::BackgroundThreadMain (this=0x555555800760 leveldb::Env::Default()::env_container)
at /leveldb/util/env_posix.cc:850
#13 0x0000555555706256 in leveldb::(anonymous namespace)::PosixEnv::BackgroundThreadEntryPoint (env=0x555555800760 leveldb::Env::Default()::env_container)
at /leveldb/util/env_posix.cc:751
#14 0x000055555570829e in std::__invoke_impl<void, void ()(leveldb::(anonymous namespace)::PosixEnv), leveldb::(anonymous namespace)::PosixEnv*> (
__f=@0x7ffff001b8b0: 0x55555570623a <leveldb::(anonymous namespace)::PosixEnv::BackgroundThreadEntryPoint(leveldb::(anonymous namespace)::PosixEnv*)>)
at /usr/include/c++/11/bits/invoke.h:61
#15 0x0000555555708221 in std::__invoke<void ()(leveldb::(anonymous namespace)::PosixEnv), leveldb::(anonymous namespace)::PosixEnv*> (
__fn=@0x7ffff001b8b0: 0x55555570623a <leveldb::(anonymous namespace)::PosixEnv::BackgroundThreadEntryPoint(leveldb::(anonymous namespace)::PosixEnv*)>)
at /usr/include/c++/11/bits/invoke.h:96
#16 0x0000555555708191 in std::thread::_Invoker<std::tuple<void ()(leveldb::(anonymous namespace)::PosixEnv), leveldb::(anonymous namespace)::PosixEnv*> >::_M_invoke<0, 1> (this=0x7ffff001b8a8) at /usr/include/c++/11/bits/std_thread.h:259
#17 0x000055555570814a in std::thread::_Invoker<std::tuple<void ()(leveldb::(anonymous namespace)::PosixEnv), leveldb::(anonymous namespace)::PosixEnv*> >::operator() (
this=0x7ffff001b8a8) at /usr/include/c++/11/bits/std_thread.h:266
#18 0x000055555570812e in std::thread::State_impl<std::thread::Invoker<std::tuple<void ()(leveldb::(anonymous namespace)::PosixEnv), leveldb::(anonymous namespace)::PosixEnv*> > >::M_run (this=0x7ffff001b8a0) at /usr/include/c++/11/bits/std_thread.h:211
#19 0x00007ffff7ae0253 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
#20 0x00007ffff7766ac3 in start_thread (arg=) at ./nptl/pthread_create.c:442
#21 0x00007ffff77f8850 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
(gdb) f 1
#1 0x00005555556e6035 in leveldb::InternalFilterPolicy::CreateFilter (this=0x5555558202e0, keys=0x7fffd8013f20, n=272, dst=0x7fffd8010f80)
at /leveldb/db/dbformat.cc:110
110 user_policy->CreateFilter(keys, n, dst);
(gdb) p user_policy
$1 = (const leveldb::FilterPolicy * const) 0x7fffffffdfb0
(gdb) p *user_policy
warning: can't find linker symbol for virtual table for `leveldb::FilterPolicy' value
$2 = {_vptr.FilterPolicy = 0x7ffff7ffd040 <rtld_global>}
(gdb) p (void*) user_policy
$3 = (void *) 0x7ffff7ffd040 <_rtld_global>

Delivery is a log message:

root@iZbp1izvhfyl4sguxddvlxZ:/Fiudb# cat LOG
2024/12/25-14:32:56.587266 140737338922944 Recovering log #3
2024/12/25-14:32:56.587345 140737338922944 Reusing old log Fiudb/000003.log
2024/12/25-14:32:56.589966 140737338922944 Delete type=3 #2
2024/12/25-14:46:32.086443 140737209853504 Level-0 table #6: started

The memory space and disk space are sufficient:

root@iZbp1izvhfyl4sguxddvlxZ:/Fiudb# free -h
total used free shared buff/cache available
Mem: 7.2Gi 2.0Gi 1.1Gi 11Mi 4.1Gi 4.9Gi
Swap: 0B 0B 0B
root@iZbp1izvhfyl4sguxddvlxZ:/Fiudb# df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 740M 11M 729M 2% /run
/dev/vda3 30G 23G 4.9G 83% /
tmpfs 3.7G 0 3.7G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
/dev/vda2 197M 6.1M 191M 4% /boot/efi
tmpfs 740M 4.0K 740M 1% /run/user/0
/dev/vdb1 96G 24K 91G 1% /disk

root@iZbp1izvhfyl4sguxddvlxZ:/Fiudb# ll
total 3084
drwxr-xr-x 2 root root 4096 Dec 25 14:46 ./
drwxr-xr-x 5 root root 4096 Dec 25 14:29 ../
-rw-r--r-- 1 root root 3117439 Dec 25 14:46 000003.log
-rw-r--r-- 1 root root 76 Dec 25 14:46 000005.log
-rw-r--r-- 1 root root 4106 Dec 25 14:46 000006.ldb
-rw-r--r-- 1 root root 16 Dec 25 14:32 CURRENT
-rw-r--r-- 1 root root 0 Dec 25 14:29 LOCK
-rw-r--r-- 1 root root 267 Dec 25 14:46 LOG
-rw-r--r-- 1 root root 143 Dec 25 14:29 LOG.old
-rw-r--r-- 1 root root 50 Dec 25 14:32 MANIFEST-000004