Hi

We are using the nginx imap mail module and we are seeing coredumps

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This GDB was configured as "amd64-marcel-freebsd"...
Core was generated by `nginx'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /home/y/lib/libssl.so.3...done.
Loaded symbols for /home/y/lib/libssl.so.3
Reading symbols from /home/y/lib/libcrypto.so.3...done.
Loaded symbols for /home/y/lib/libcrypto.so.3
Reading symbols from /usr/lib32/compat/libc.so.4...done.
Loaded symbols for /usr/lib32/compat/libc.so.4
Reading symbols from /libexec/ld-elf32.so.1...done.
Loaded symbols for /libexec/ld-elf32.so.1
#0 0x0101f169 in ngx_ssl_write (c=0x1098040,
data=0xffffffff <Address 0xffffffff out of bounds>, size=20532628)
at src/event/ngx_event_openssl.c:1079
1079 src/event/ngx_event_openssl.c: No such file or directory.
in src/event/ngx_event_openssl.c
(gdb) bt
#0 0x0101f169 in ngx_ssl_write (c=0x1098040,
data=0xffffffff <Address 0xffffffff out of bounds>, size=20532628)
at src/event/ngx_event_openssl.c:1079
#1 0x01022345 in ngx_mail_send (wev=0x1396e28)
at src/mail/ngx_mail_handler.c:559
#2 0x01025ad6 in ngx_mail_imap_auth_state (rev=0x126ae28)
at src/mail/ngx_mail_imap_handler.c:360
#3 0x0101dcd9 in ngx_kqueue_process_events (cycle=0x1050028, timer=500,
flags=1) at src/event/modules/ngx_kqueue_module.c:689
#4 0x01014ca9 in ngx_process_events_and_timers (cycle=0x1050028)
at src/event/ngx_event.c:245
#5 0x0101b969 in ngx_worker_process_cycle (cycle=0x1050028, data=0x0)
at src/os/unix/ngx_process_cycle.c:791
#6 0x01019ee7 in ngx_spawn_process (cycle=0x1050028,
proc=0x101b89c <ngx_worker_process_cycle>, data=0x0,
name=0x1030d3e "worker process", respawn=Cannot access memory at address 0xffffdc18
) at src/os/unix/ngx_process.c:194
#7 0x0101b66d in ngx_reap_children (cycle=0x1050028)
at src/os/unix/ngx_process_cycle.c:612
#8 0x0101abbb in ngx_master_process_cycle (cycle=0x1050028)
at src/os/unix/ngx_process_cycle.c:180
#9 0x0100350a in main (argc=3, argv=0xffffde40) at src/core/nginx.c:396

'any ideas on debugging this?

thanks!