primary ceph mds fail

Thread 17 "mds_rank_progr" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fe3b100a700 (LWP 120481)]
0x00005617aacc48c2 in Server::handle_client_getattr (this=this@entry=0x5617b5acbcd0, mdr=..., is_lookup=is_lookup@entry=true) at /build/ceph-12.2.5/src/mds/Server.cc:3065
3065    /build/ceph-12.2.5/src/mds/Server.cc: No such file or directory.
(gdb) t
[Current thread is 17 (Thread 0x7fe3b100a700 (LWP 120481))]
(gdb) bt
#0  0x00005617aacc48c2 in Server::handle_client_getattr (this=this@entry=0x5617b5acbcd0, mdr=..., is_lookup=is_lookup@entry=true) at /build/ceph-12.2.5/src/mds/Server.cc:3065
#1  0x00005617aacfc98b in Server::dispatch_client_request (this=this@entry=0x5617b5acbcd0, mdr=...) at /build/ceph-12.2.5/src/mds/Server.cc:1802
#2  0x00005617aacfce9b in Server::handle_client_request (this=this@entry=0x5617b5acbcd0, req=req@entry=0x5617bdfa8700) at /build/ceph-12.2.5/src/mds/Server.cc:1716
#3  0x00005617aad017b6 in Server::dispatch (this=0x5617b5acbcd0, m=m@entry=0x5617bdfa8700) at /build/ceph-12.2.5/src/mds/Server.cc:258
#4  0x00005617aac6afac in MDSRank::handle_deferrable_message (this=this@entry=0x5617b5d22000, m=m@entry=0x5617bdfa8700) at /build/ceph-12.2.5/src/mds/MDSRank.cc:716
#5  0x00005617aac795cb in MDSRank::_dispatch (this=this@entry=0x5617b5d22000, m=0x5617bdfa8700, new_msg=new_msg@entry=false) at /build/ceph-12.2.5/src/mds/MDSRank.cc:551
#6  0x00005617aac7a472 in MDSRank::retry_dispatch (this=0x5617b5d22000, m=<optimized out>) at /build/ceph-12.2.5/src/mds/MDSRank.cc:998
#7  0x00005617aaf0207b in Context::complete (r=0, this=0x5617bd568080) at /build/ceph-12.2.5/src/include/Context.h:70
#8  MDSInternalContextBase::complete (this=0x5617bd568080, r=0) at /build/ceph-12.2.5/src/mds/MDSContext.cc:30
#9  0x00005617aac78bf7 in MDSRank::_advance_queues (this=0x5617b5d22000) at /build/ceph-12.2.5/src/mds/MDSRank.cc:776
#10 0x00005617aac7921a in MDSRank::ProgressThread::entry (this=0x5617b5d22d40) at /build/ceph-12.2.5/src/mds/MDSRank.cc:502
#11 0x00007fe3bb3066ba in start_thread (arg=0x7fe3b100a700) at pthread_create.c:333
#12 0x00007fe3ba37241d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109