> On 1 Jul, 2016, at 10:52, Timo Sirainen <tss at iki.fi> wrote:
>
> On 01 Jul 2016, at 19:39, Adam Weinberger <adamw at adamw.org> wrote:
>>
>> Hi,
>>
>> 2.2.25 crashes on FreeBSD with a kqueue-related message. I see
references to something similar
(http://www.dovecot.org/list/dovecot/2012-February.txt) from a couple years ago.
>>
>> I get:
>> Jul 1 10:07:27 imap dovecot: master: Panic: kevent(EV_ADD, READ, 54)
failed: Bad file descriptor
>>
>> It's not dumping core, and I get the message even with
"protocols ="
>>
>> Downgrading back to 2.2.24 fixes it. What info would be helpful for me
to provide here?
>
> gdb backtrace: http://dovecot.org/bugreport.html#coredumps
>
Fuller logs attached. Thanks for your help, Timo.
# Adam
Okay. Here's my steps:
1) Install 2.2.5 into fresh i386 FreeBSD 10.3-RELEASE-p5 jail.
2) Built with the following settings:
root at apnoea-builder:/usr/ports/mail/dovecot2 # make -V CONFIGURE_ARGS
--localstatedir=/var --with-statedir=/var/db/dovecot --without-shadow
--with-docs --with-ioloop=kqueue --with-notify=kqueue --without-libwrap
--with-ssl=openssl --without-vpopmail --without-gssapi --without-cdb
--without-ldap --without-mysql --without-pgsql --without-sqlite --without-icu
--without-lucene --without-solr --without-textcat --prefix=/usr/local
${_LATE_CONFIGURE_ARGS}
3) Copied files into place and made following changes:
root at apnoea-builder:/usr/ports/mail/dovecot2 # dovecot -n
# 2.2.25 (7be1766): /usr/local/etc/dovecot/dovecot.conf
# OS: FreeBSD 10.3-RELEASE-p5 i386
auth_debug = yes
auth_verbose = yes
log_path = /var/log/dovelog
mail_debug = yes
namespace inbox {
inbox = yes
location mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix }
passdb {
driver = pam
}
ssl = no
userdb {
driver = passwd
}
4. Started dovecot
root at apnoea-builder:/usr/ports/mail/dovecot2 # /usr/local/sbin/dovecot -c
/usr/local/etc/dovecot/dovecot.conf
Last died with error (see error log for more information): kevent(EV_ADD, READ,
57) failed: Bad file descriptor
root at apnoea-builder:~ # tail /var/log/dovelog
Jul 02 00:15:56 master: Info: Dovecot v2.2.25 (7be1766) starting up for imap,
pop3, lmtp
Jul 02 00:15:56 master: Panic: kevent(EV_ADD, READ, 57) failed: Bad file
descriptor
5. Backtrace
root at apnoea-builder:~ # gdb /usr/local/sbin/dovecot /dovecot.core
This GDB was configured as "i386-marcel-freebsd"...
Core was generated by `dovecot'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/local/lib/dovecot/libdovecot.so.0...done.
Loaded symbols for /usr/local/lib/dovecot/libdovecot.so.0
Reading symbols from /lib/libc.so.7...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0 0x28295237 in thr_kill () from /lib/libc.so.7
(gdb) bt
#0 0x28295237 in thr_kill () from /lib/libc.so.7
#1 0x2829522a in raise () from /lib/libc.so.7
#2 0x28295176 in abort () from /lib/libc.so.7
#3 0x2815aea2 in default_fatal_finish (type=LOG_TYPE_PANIC, status=0) at
failures.c:201
#4 0x2815b686 in i_syslog_fatal_handler (ctx=0xffffaaf0, format=0x281ccf7a
"kevent(EV_ADD, READ, %d) failed: %m", args=0xffffab24 "8")
at failures.c:418
#5 0x0804dfd1 in master_fatal_callback (ctx=0xffffaaf0, format=0x281ccf7a
"kevent(EV_ADD, READ, %d) failed: %m", args=0xffffab24 "8")
at main.c:167
#6 0x2815b23a in i_panic (format=0x281ccf7a "kevent(EV_ADD, READ, %d)
failed: %m") at failures.c:275
#7 0x28185e10 in io_loop_handle_add (io=0x288843a0) at ioloop-kqueue.c:67
#8 0x281815a8 in io_add_file (fd=56, condition=IO_READ, source_linenum=244,
callback=0x2818a7d0 <signal_read>, context=0x0) at ioloop.c:59
#9 0x281813a6 in io_add (fd=56, condition=IO_READ, source_linenum=244,
callback=0x2818a7d0 <signal_read>, context=0x0) at ioloop.c:81
#10 0x2818a666 in lib_signals_set_handler (signo=1, flags=3, handler=0x804e6c0
<sig_settings_reload>, context=0x0) at lib-signals.c:243
#11 0x0804e129 in main_init (set=0x2881d098) at main.c:518
#12 0x0804d562 in main (argc=3, argv=0xffffae08) at main.c:890
(gdb) bt full
#0 0x28295237 in thr_kill () from /lib/libc.so.7
No symbol table info available.
#1 0x2829522a in raise () from /lib/libc.so.7
No symbol table info available.
#2 0x28295176 in abort () from /lib/libc.so.7
No symbol table info available.
#3 0x2815aea2 in default_fatal_finish (type=LOG_TYPE_PANIC, status=0) at
failures.c:201
backtrace = 0x0
#4 0x2815b686 in i_syslog_fatal_handler (ctx=0xffffaaf0, format=0x281ccf7a
"kevent(EV_ADD, READ, %d) failed: %m", args=0xffffab24 "8")
at failures.c:418
status = 0
#5 0x0804dfd1 in master_fatal_callback (ctx=0xffffaaf0, format=0x281ccf7a
"kevent(EV_ADD, READ, %d) failed: %m", args=0xffffab24 "8")
at main.c:167
path = 0x28803810 "master-fatal.lastlog"
str = 0x28803860 "kevent(EV_ADD, READ, 56) failed: Bad file
descriptor"
args2 = 0xffffab24 "8"
pid = 94804
fd = -1
#6 0x2815b23a in i_panic (format=0x281ccf7a "kevent(EV_ADD, READ, %d)
failed: %m") at failures.c:275
ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0,
timestamp_usecs = 0}
args = 0xffffab24 "8"
#7 0x28185e10 in io_loop_handle_add (io=0x288843a0) at ioloop-kqueue.c:67
ctx = (struct ioloop_handler_context *) 0x288131d0
ev = {ident = 56, filter = -1, flags = 1, fflags = 0, data = 0, udata =
0x288843a0}
#8 0x281815a8 in io_add_file (fd=56, condition=IO_READ, source_linenum=244,
callback=0x2818a7d0 <signal_read>, context=0x0) at ioloop.c:59
io = (struct io_file *) 0x288843a0
#9 0x281813a6 in io_add (fd=56, condition=IO_READ, source_linenum=244,
callback=0x2818a7d0 <signal_read>, context=0x0) at ioloop.c:81
io = (struct io_file *) 0xffffac80
#10 0x2818a666 in lib_signals_set_handler (signo=1, flags=3, handler=0x804e6c0
<sig_settings_reload>, context=0x0) at lib-signals.c:243
h = (struct signal_handler *) 0x2805e079
#11 0x0804e129 in main_init (set=0x2881d098) at main.c:518
No locals.
#12 0x0804d562 in main (argc=3, argv=0xffffae08) at main.c:890
_data_stack_cur_id = 2
set = (struct master_settings *) 0x2881d098
error = 0x282f42cf "\215e?[]?", '\220' <repeats 11
times>, "U\211?SWV\203?\020\211M??"
doveconf_arg = 0x0
orig_info_callback = (failure_callback_t *) 0x2815b800
<i_syslog_error_handler>
orig_debug_callback = (failure_callback_t *) 0x2815b800
<i_syslog_error_handler>
foreground = false
ask_key_pass = false
i = 3
c = -1
doubleopts = <value optimized out>