[Dovecot] assertion failure in current hg, file istream.c: line 303 (i_stream_read_data): assertion failed: (stream->stream_errno != 0) (1.1.3 was working fine)

[Diego Liziero]

Today I updated to current dovecot-1.1 hg tree and I got many of these
assertion failures:

file istream.c: line 303 (i_stream_read_data): assertion failed:
(stream->stream_errno != 0)
(gdb) bt full
#0  0x00352402 in __kernel_vsyscall ()
No symbol table info available.
#1  0x0043ed20 in raise () from /lib/libc.so.6
No symbol table info available.
#2  0x00440631 in abort () from /lib/libc.so.6
No symbol table info available.
#3  0x080f6968 in default_fatal_finish (type=LOG_TYPE_PANIC, status=0)
at failures.c:150
        backtrace = 0x906d950 "/usr/libexec/dovecot/imap [0x80f6946]
-> /usr/libexec/dovecot/imap [0x80f7207] ->
/usr/libexec/dovecot/imap(i_fatal+0) [0x80f6ac0] ->
/usr/libexec/dovecot/imap(i_stream_read_data+0.
#4  0x080f7207 in i_internal_fatal_handler (type=LOG_TYPE_PANIC,
status=0, fmt=0x8124778 "file %s: line %d (%s): assertion failed:
(%s)", args=0xbfe643a4 "mG\022\b/\001") at failures.c:430
No locals.
#5  0x080f6ac0 in i_panic (format=0x8124778 "file %s: line %d (%s):
assertion failed: (%s)") at failures.c:197
        args = 0xbfe643a4 "mG\022\b/\001"
#6  0x080fcb64 in i_stream_read_data (stream=0x9094a08,
data_r=0xbfe64444, size_r=0xbfe64440, threshold=0) at istream.c:303
        ret = -1
        read_more = false
        __PRETTY_FUNCTION__ = "i_stream_read_data"
#7  0x08065ba1 in imap_fetch_send (ctx=0x90716e0, output=0x90714ec,
input=0x9094a08, cr_skipped=false, virtual_size=169,
add_missing_eoh=false, last_cr=0x9071734) at imap-fetch-body.c:132
        msg = (const unsigned char *) 0x0
        i = 3219539032
        size = 0
        vsize_left = 169
        sent = 0
        ret = 581237648214344776
        add = 16 '\020'
        blocks = false
#8  0x08065d7f in fetch_stream_send (ctx=0x90716e0) at imap-fetch-body.c:217
        ret = 151603720
#9  0x080660e8 in fetch_stream (ctx=0x90716e0, size=0x908efc4) at
imap-fetch-body.c:293
        input = (struct istream *) 0x10b8df
#10 0x08066225 in fetch_data (ctx=0x90716e0, body=0x9071cd8,
size=0x908efc4) at imap-fetch-body.c:318
        str = (string_t *) 0x906cc18
#11 0x08066ac7 in fetch_body_mime (ctx=0x90716e0, mail=0x908e9e8,
body=0x9071cd8) at imap-fetch-body.c:555
        part = (const struct message_part *) 0x908efb0
        section = 0x9071d12 "MIME"
        __PRETTY_FUNCTION__ = "fetch_body_mime"
#12 0x08064bad in imap_fetch_more (ctx=0x90716e0) at imap-fetch.c:309
        h = (const struct imap_fetch_context_handler *) 0x90718c8
        _data_stack_cur_id = 4
        client = (struct client *) 0x9071368
        handlers = (const struct imap_fetch_context_handler *) 0x9071850
        count = 7
        ret = 1
        __PRETTY_FUNCTION__ = "imap_fetch_more"
#13 0x08064dd4 in imap_fetch (ctx=0x90716e0) at imap-fetch.c:361
        ret = 0
        __PRETTY_FUNCTION__ = "imap_fetch"
#14 0x0805c792 in cmd_fetch (cmd=0x9071600) at cmd-fetch.c:152
        ctx = (struct imap_fetch_context *) 0x90716e0
        args = (const struct imap_arg *) 0x9075688
        search_arg = (struct mail_search_arg *) 0x9071678
        messageset = 0x9075750 "4068"
        ret = 151455048
#15 0x08061173 in cmd_uid (cmd=0x9071600) at cmd-uid.c:26
        command = (struct command *) 0x907068c
        cmd_name = 0x9075738 "fetch"
#16 0x08062534 in client_command_input (cmd=0x9071600) at client.c:580
        client = (struct client *) 0x9071368
        command = (struct command *) 0x23
        __PRETTY_FUNCTION__ = "client_command_input"
#17 0x08062769 in client_command_input (cmd=0x9071600) at client.c:629
        client = (struct client *) 0x9071368
        command = (struct command *) 0x9070668
        __PRETTY_FUNCTION__ = "client_command_input"
#18 0x08062867 in client_handle_next_command (client=0x9071368,
remove_io_r=0xbfe64765) at client.c:670
        size = 132
#19 0x080628a3 in client_handle_input (client=0x9071368) at client.c:680
        _data_stack_cur_id = 3
        ret = 7
        remove_io = false
        handled_commands = false
#20 0x08062a31 in client_input (client=0x9071368) at client.c:725
        cmd = (struct client_command_context *) 0x4e7408
        output = (struct ostream *) 0x90714ec
        bytes = 132
        __PRETTY_FUNCTION__ = "client_input"
#21 0x08101115 in io_loop_handler_run (ioloop=0x906f9b0) at ioloop-epoll.c:203
        ctx = (struct ioloop_handler_context *) 0x906faa8
        events = (struct epoll_event *) 0x906fae8
        event = (const struct epoll_event *) 0x906fae8
        list = (struct io_list *) 0x9071568
        io = (struct io_file *) 0x9071548
        tv = {tv_sec = 1799, tv_usec = 999874}
        events_count = 3
        t_id = 2
        msecs = 1800000
        ret = 1
        i = 0
        j = 0
        call = true
#22 0x081003ac in io_loop_run (ioloop=0x906f9b0) at ioloop.c:320
No locals.
#23 0x0806debd in main (argc=1, argv=0xbfe648c4, envp=0xbfe648cc) at main.c:293
No locals.