(gdb) info threads Id Target Id Frame * 7447 LWP 2377352 __pthread_kill_implementation (threadid=, signo=signo@entry=6, no_tid=no_tid@entry=0) at ./nptl/pthread_kill.c:44 7448 LWP 2377306 std::__atomic_base::load (__m=std::memory_order_relaxed, this=0x7f9efe2a6900) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/atomic_base.h:420 7449 LWP 2377307 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9efddf51e0, op=393, expected=0, futex_word=0x7f9efe416634) at ./nptl/futex-internal.c:57 7450 LWP 2377308 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9efc8f4040, op=393, expected=0, futex_word=0x7f9efcd18060) at ./nptl/futex-internal.c:57 7451 LWP 2377309 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9efc0f3230, op=393, expected=0, futex_word=0x7f9efd359370) at ./nptl/futex-internal.c:57 7452 LWP 2377310 0x00007f9f0131b03f in __GI___poll (fds=0x7f9efb8f21f8, nfds=1, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29 7453 LWP 2377311 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9efb0f1200, op=393, expected=0, futex_word=0x7f9efcde6020) at ./nptl/futex-internal.c:57 7454 LWP 2377312 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9efa8f0210, op=393, expected=0, futex_word=0x7f9efcd3b554) at ./nptl/futex-internal.c:57 7455 LWP 2377313 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1291cb0) at ./nptl/futex-internal.c:57 7456 LWP 2377314 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x1291cb4) at ./nptl/futex-internal.c:57 7457 LWP 2377315 0x00007f9f0131b03f in __GI___poll (fds=fds@entry=0x1297fc0, nfds=nfds@entry=1, timeout=timeout@entry=200) at ../sysdeps/unix/sysv/linux/poll.c:29 7458 LWP 2377316 0x00007f9f01327c46 in epoll_wait (epfd=19, events=events@entry=0x7f9efcd4d300, maxevents=32, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 7459 LWP 2377317 0x00007f9f01327c46 in epoll_wait (epfd=24, events=events@entry=0x7f9efcd4d480, maxevents=32, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 7460 LWP 2377318 0x00007f9f01327c46 in epoll_wait (epfd=29, events=events@entry=0x7f9efcd4d600, maxevents=32, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 7461 LWP 2377319 0x00007f9f01327c46 in epoll_wait (epfd=34, events=events@entry=0x7f9efcd4d780, maxevents=32, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 7462 LWP 2377320 __gnu_cxx::__atomic_add (__val=1, __mem=0x7f9e147be808) at /opt/gcc-10.2.0/include/c++/10.2.0/ext/atomicity.h:55 7463 LWP 2377321 0x00007f9f01327c46 in epoll_wait (epfd=44, events=events@entry=0x7f9efcd4da80, maxevents=32, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 7464 LWP 2377322 0x00007f9f0132891a in __GI_epoll_ctl () at ../sysdeps/unix/syscall-template.S:120 7465 LWP 2377323 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7466 LWP 2377324 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7467 LWP 2377325 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7468 LWP 2377326 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7469 LWP 2377327 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7470 LWP 2377328 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7471 LWP 2377329 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7472 LWP 2377330 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7473 LWP 2377331 0x00007f9f0131dada in __GI_fdatasync (fd=47939) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7474 LWP 2377332 0x00007f9f0131dada in __GI_fdatasync (fd=15695) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7475 LWP 2377333 0x00000000009750eb in std::__cxx11::basic_string, std::allocator >::_M_local_data (this=) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/basic_string.h:193 7476 LWP 2377334 0x00000000005ac0bd in nlohmann::json_abi_v3_11_2::basic_json, std::allocator >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector > >::basic_json (other=..., this=) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/json.exploded/include/nlohmann/json.hpp:1210 7477 LWP 2377335 __libc_pwrite64 (offset=, count=8192, buf=0x7f9e0dc66000, fd=23297) at ../sysdeps/unix/sysv/linux/pwrite64.c:25 7478 LWP 2377336 0x00007f9f013188e7 in __GI_unlink () at ../sysdeps/unix/syscall-template.S:120 7479 LWP 2377337 __libc_pread64 (offset=, count=230, buf=0x7f9ea5fe8000, fd=21756) at ../sysdeps/unix/sysv/linux/pread64.c:25 7480 LWP 2377338 0x00007f9f0131dada in __GI_fdatasync (fd=4763) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7481 LWP 2377339 0x00007f9f0131dada in __GI_fdatasync (fd=11491) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7482 LWP 2377340 0x00007f9f0131dada in __GI_fdatasync (fd=3934) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7483 LWP 2377341 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9e1e0e1b58) at ./nptl/futex-internal.c:57 7484 LWP 2377342 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9e1a188b58) at ./nptl/futex-internal.c:57 7485 LWP 2377343 __libc_pwrite64 (offset=, count=8192, buf=0x7f9de7000000, fd=26897) at ../sysdeps/unix/sysv/linux/pwrite64.c:25 7486 LWP 2377344 0x00007f9f0131dada in __GI_fdatasync (fd=26937) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7487 LWP 2377345 0x00007f9f0131dada in __GI_fdatasync (fd=3990) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7488 LWP 2377346 0x0000000000b4e15c in std::_Sp_counted_ptr_inplace, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, magma::FileSystem&, std::function&, int&, magma::TreeSnapshot::Mode&, std::shared_ptr&, magma::Logger*&, std::chrono::duration >&>(std::allocator, std::__cxx11::basic_string, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, magma::FileSystem&, std::function&, int&, magma::TreeSnapshot::Mode&, std::shared_ptr&, magma::Logger*&, std::chrono::duration >&) (__a=..., this=) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/shared_ptr_base.h:547 7489 LWP 2377347 0x00007f9f0131dada in __GI_fdatasync (fd=3874) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7490 LWP 2377348 0x00007f9f0131dada in __GI_fdatasync (fd=27535) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7491 LWP 2377349 0x00007f9f0131dada in __GI_fdatasync (fd=61357) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7492 LWP 2377350 0x00007f9f0131dada in __GI_fdatasync (fd=27229) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7493 LWP 2377351 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7494 LWP 2377353 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7495 LWP 2377354 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 7496 LWP 2377355 0x00007f9f01327c46 in epoll_wait (epfd=54, events=events@entry=0x7f9ec42fe000, maxevents=32, timeout=timeout@entry=30) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 7497 LWP 2378957 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9e41ff31e0, op=393, expected=0, futex_word=0x7f9efe4167d0) at ./nptl/futex-internal.c:57 7498 LWP 2378958 0x00007f9f0131dada in __GI_fdatasync (fd=27293) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7499 LWP 2378959 0x0000000000b4e15c in std::_Sp_counted_ptr_inplace, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, magma::FileSystem&, std::function&, int&, magma::TreeSnapshot::Mode&, std::shared_ptr&, magma::Logger*&, std::chrono::duration >&>(std::allocator, std::__cxx11::basic_string, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, std::__cxx11::basic_string, std::allocator >&, magma::FileSystem&, std::function&, int&, magma::TreeSnapshot::Mode&, std::shared_ptr&, magma::Logger*&, std::chrono::duration >&) (__a=..., this=) at /opt/gcc-10.2.0/include/c++/10.2.0/bits/shared_ptr_base.h:547 7500 LWP 2378960 0x00007f9f0131dada in __GI_fdatasync (fd=381) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 --Type for more, q to quit, c to continue without paging-- 7501 LWP 2378961 0x00007f9f0131dada in __GI_fdatasync (fd=26955) at ../sysdeps/unix/sysv/linux/fdatasync.c:28 7502 LWP 2378962 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7503 LWP 2378963 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7504 LWP 2378964 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7505 LWP 2378965 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7506 LWP 2378966 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7507 LWP 2378967 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7508 LWP 2378968 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7509 LWP 2378969 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7510 LWP 2378970 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7511 LWP 2378971 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7512 LWP 2378972 magma::BlockIterator::GetKey (this=0x7f9e194a5ee0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/magma/lsm/sstable/block.cc:422 7513 LWP 2378973 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7514 LWP 2378974 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7515 LWP 2378975 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7516 LWP 2378976 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7517 LWP 2378977 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0, op=393, expected=0, futex_word=0x7f9ec4451324) at ./nptl/futex-internal.c:57 7518 LWP 2378979 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9e21df51e0, op=393, expected=0, futex_word=0x7f9efe4168a0) at ./nptl/futex-internal.c:57 7519 LWP 2379030 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x7f9e1ccf41e0, op=393, expected=0, futex_word=0x7f9efe416704) at ./nptl/futex-internal.c:57 (gdb) (gdb)