建了一个6个osd的集群，创建一个6个pg的pool，使用block_bench写数据，然后kill 掉一个osd，导致pg重新分布，在pg成员变更过程中触发了snapshot recovery,发送snapshot时osd coredump。

报的错误：
==2004069==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6250004aabe8 at pc 0x560f402a9a59 bp 0x7ffc4e927cb0 sp 0x7ffc4e927ca0
WRITE of size 8 at 0x6250004aabe8 thread T0 (reactor_5)
#0 0x560f402a9a58 in msg::rdma::transport_data::from_net_context(msg::rdma::memory_pool<ibv_recv_wr>::net_context*) (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x2a3ba58)
#1 0x560f40337d35 in msg::rdma::server::handle_cqe_poll() (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x2ac9d35)
#2 0x560f403392c6 in msg::rdma::server::cqe_poller(void*) (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x2acb2c6)
#3 0x560f3fe7248d in thread_execute_poller /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/thread/thread.c:819
#4 0x560f3fe74399 in thread_poll /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/thread/thread.c:941
#5 0x560f3fe74809 in spdk_thread_poll /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/thread/thread.c:992
#6 0x560f3ff5e26d in _reactor_run /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/reactor.c:924
#7 0x560f3ff5ea29 in reactor_run /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/reactor.c:962
#8 0x560f3ff5f593 in spdk_reactors_start /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/reactor.c:1064
#9 0x560f3ff52b23 in spdk_app_start /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/app.c:645
#10 0x560f4023f159 in main /root/euler_workspace/fastblock/src/osd/osd.cc:703
#11 0x7f271304cfcf in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
#12 0x7f271304d07c in __libc_start_main_impl ../csu/libc-start.c:409
#13 0x560f3f9cdba4 in _start (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x215fba4)

0x6250004aabe8 is located 8 bytes to the right of 8928-byte region [0x6250004a8900,0x6250004aabe0)
allocated by thread T0 (reactor_5) here:
#0 0x7f27146a4337 in operator new[](unsigned long) ../../../../src/libsanitizer/asan/asan_new_delete.cpp:102
#1 0x560f403666b8 in std::_MakeUniq<msg::rdma::transport_data::remote_info []>::__array std::make_unique<msg::rdma::transport_data::remote_info []>(unsigned long) (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x2af86b8)
#2 0x560f402a969d in msg::rdma::transport_data::from_net_context(msg::rdma::memory_pool<ibv_recv_wr>::net_context*) (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x2a3b69d)
#3 0x560f40337d35 in msg::rdma::server::handle_cqe_poll() (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x2ac9d35)
#4 0x560f403392c6 in msg::rdma::server::cqe_poller(void*) (/root/euler_workspace/fastblock/build/src/osd/fastblock-osd+0x2acb2c6)
#5 0x560f3fe7248d in thread_execute_poller /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/thread/thread.c:819
#6 0x560f3fe74399 in thread_poll /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/thread/thread.c:941
#7 0x560f3fe74809 in spdk_thread_poll /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/thread/thread.c:992
#8 0x560f3ff5e26d in _reactor_run /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/reactor.c:924
#9 0x560f3ff5ea29 in reactor_run /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/reactor.c:962
#10 0x560f3ff5f593 in spdk_reactors_start /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/reactor.c:1064
#11 0x560f3ff52b23 in spdk_app_start /root/euler_workspace/fastblock/build/deps_build/spdk-prefix/src/spdk/lib/event/app.c:645
#12 0x560f4023f159 in main /root/euler_workspace/fastblock/src/osd/osd.cc:703
#13 0x7f271304cfcf in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58

通过日志得知成功发送了部分snapshot: