[Dovecot] Problems with dovecot 1.1b3

[Adam McDougall]

On Sun, Oct 21, 2007 at 02:52:04PM +0300, Timo Sirainen wrote:

  On Sat, 2007-10-20 at 23:11 -0400, Adam McDougall wrote:
  > telnet server 143
  > ? login username pass
  > 1 select "anyfolder"
  > 2 IDLE
  > DONE
  > (crash)
  > 
  > If this is not reproducable for you, I guess I'll have to setup some
  > process debugging.  
  
  Not reproducible with me. gdb backtrace would be nice.
  http://dovecot.org/bugreport.html
  
  What notify method are you using? (dovecot --build-options)
  
Build options: ioloop=kqueue notify=kqueue openssl

It does not crash if I use poll instead of kqueue.

Hopefully I did this backtrace right, let me know if I should change
anything to improve it.  

> env MAIL=maildir:~/Maildir gdb /tmp/imap
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...
(gdb) r
Starting program: /tmp/imap
* PREAUTH [CAPABILITY IMAP4rev1 SASL-IR SORT THREAD=REFERENCES MULTIAPPEND UNSELECT 
LITERAL+ IDLE CHILDREN NAMESPACE LOGIN-REFERRALS UIDPLUS LIST-EXTENDED] Logged in as 
mcdouga9
1 select "funny"
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft unknown-1 unknown-0)
* OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft unknown-1 unknown-0 \*)] 
Flags permitted.
* 422 EXISTS
* 0 RECENT
* OK [UNSEEN 295] First unseen.
* OK [UIDVALIDITY 1192968516] UIDs valid
* OK [UIDNEXT 423] Predicted next UID
1 OK [READ-WRITE] Select completed.
2 IDLE
+ idling
DONE

Program received signal SIGSEGV, Segmentation fault.
0x00000000004a8003 in io_file_unlink (io=0x5fb340) at ioloop.c:54
54                      io->prev->next = io->next;
(gdb) bt full
#0  0x00000000004a8003 in io_file_unlink (io=0x5fb340) at ioloop.c:54
No locals.
#1  0x00000000004a80ce in io_remove (_io=0x5fd0a8) at ioloop.c:82
        io_file = (struct io_file *) 0x5fb340
        io = (struct io *) 0x5fb340
#2  0x000000000045ae16 in index_mailbox_check_remove_all (ibox=0x60b048)
    at index-mailbox-check.c:118
        file = (struct index_notify_file *) 0x0
        aio = (struct index_notify_io *) 0x5fd0a0
#3  0x000000000042d40b in maildir_notify_changes (box=0x60b048) at maildir-storage.c:824
        mbox = (struct maildir_mailbox *) 0x60b048
#4  0x000000000048bf90 in mailbox_notify_changes (box=0x60b048, min_interval=0, callback=0,
    context=0x0) at mail-storage.c:544
No locals.
#5  0x000000000048bfc4 in mailbox_notify_changes_stop (box=0x60b048) at mail-storage.c:550
No locals.
#6  0x00000000004158ab in idle_finish (ctx=0x6010b0, done_ok=true, free_cmd=true) at 
cmd-idle.c:48
        client = (struct client *) 0x5fe200
#7  0x0000000000415a05 in idle_client_input (ctx=0x6010b0) at cmd-idle.c:90
        client = (struct client *) 0x5fe200
        line = 0x604018 "DONE"
#8  0x00000000004a96f7 in io_loop_handler_run (ioloop=0x5f0080) at ioloop-kqueue.c:149
        ctx = (struct ioloop_handler_context *) 0x5fb0c0
        events = (struct kevent *) 0x5ff000
        event = (const struct kevent *) 0x5ff000
        tv = {tv_sec = 0, tv_usec = 999661}
        ts = {tv_sec = 0, tv_nsec = 999661000}
        io = (struct io_file *) 0x5f0a00
        events_count = 3
        t_id = 2
        msecs = 1000
        ret = 1
        i = 0
        __PRETTY_FUNCTION__ = "io_loop_handler_run"
#9  0x00000000004a8810 in io_loop_run (ioloop=0x5f0080) at ioloop.c:303
No locals.
#10 0x000000000042504e in main (argc=1, argv=0x7fffffffebd0, envp=0x7fffffffebe0) at 
main.c:293
No locals.