Dovecot core dump

rt_sigaction(SIGINT, {0x7ff3118f3d60, [], SA_RESTORER|SA_SIGINFO, 0x7ff3114ce4a0}, NULL, 8) = 0
pipe([7, 9])                            = 0
fcntl(7, F_GETFL)                       = 0 (flags O_RDONLY)
fcntl(7, F_SETFL, O_RDONLY|O_NONBLOCK)  = 0
fcntl(9, F_GETFL)                       = 0x1 (flags O_WRONLY)
fcntl(9, F_SETFL, O_WRONLY|O_NONBLOCK)  = 0
fcntl(7, F_GETFD)                       = 0
fcntl(7, F_SETFD, FD_CLOEXEC)           = 0
fcntl(9, F_GETFD)                       = 0
fcntl(9, F_SETFD, FD_CLOEXEC)           = 0
epoll_create(128)                       = 10
fcntl(10, F_GETFD)                      = 0
fcntl(10, F_SETFD, FD_CLOEXEC)          = 0
epoll_ctl(10, EPOLL_CTL_ADD, 7, {EPOLLIN|EPOLLPRI|EPOLLERR|EPOLLHUP, {u32=1038768944, u64=94138131962672}}) = 0
rt_sigaction(SIGTERM, {0x7ff3118f3d60, [], SA_RESTORER|SA_SIGINFO, 0x7ff3114ce4a0}, NULL, 8) = 0
write(2, "\1\01010497 prefix=lda: \n", 21^A^H10497 prefix=lda:
) = 21
write(2, "\1\00610497 io_add(0x1) called twice"..., 81^A^F10497 io_add(0x1) called twice fd=7, callback=0x7ff3118f3f20 -> 0x7ff311887f20
) = 81
open("/usr/lib/dovecot/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 11
fstat(11, {st_mode=S_IFREG|0644, st_size=53520, ...}) = 0
mmap(NULL, 53520, PROT_READ, MAP_PRIVATE, 11, 0) = 0x7ff3122a4000
close(11)                               = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 11
read(11, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p*\0\0\0\0\0\0"..., 832) = 832
fstat(11, {st_mode=S_IFREG|0644, st_size=89696, ...}) = 0
mmap(NULL, 2185488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 11, 0) = 0x7ff31107f000
mprotect(0x7ff311095000, 2093056, PROT_NONE) = 0
mmap(0x7ff311294000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 11, 0x15000) = 0x7ff311294000
close(11)                               = 0
munmap(0x7ff3122a4000, 53520)           = 0
write(2, "\1\00410497 Raw backtrace: /usr/lib/"..., 861^A^D10497 Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x7aee2) [0x7ff3118dcee2] -> /usr/lib/dovecot/libdovecot.so.0(+0x7afcd) [0x7ff3118dcfcd] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7ff311881a61] -> /usr/lib/dovecot/libdovecot.so.0(ioloop_iolist_add+0x49) [0x7ff3118f13e9] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handle_add+0x46) [0x7ff3118f1d76] -> /usr/lib/dovecot/libdovecot.so.0(+0x8e02b) [0x7ff3118f002b] -> /usr/lib/dovecot/libdovecot.so.0(io_add+0xd) [0x7ff3118f00ed] -> /usr/lib/dovecot/libdovecot.so.0(master_service_io_listeners_add+0x61) [0x7ff311887771] -> /usr/lib/dovecot/libdovecot.so.0(master_service_init_finish+0xc3) [0x7ff311887853] -> /usr/lib/dovecot/deliver(main+0x453) [0x559e3c691723] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7ff3114b9830] -> /usr/lib/dovecot/deliver(_start+0x29) [0x559e3c691f99]
) = 861
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
tgkill(10497, 10497, SIGABRT)           = 0
--- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=10497, si_uid=5000} ---
+++ killed by SIGABRT (core dumped) +++