Last context: tclhash.c/248

[ghost]

./eggdrop name.conf

[09:00:50] * Last context: tclhash.c/248 []
[09:00:50] * Please REPORT this BUG!
[09:00:50] * Check doc/BUG-REPORT on how to do so.
[09:00:50] * Wrote DEBUG
[09:00:50] * SEGMENT VIOLATION -- CRASHING!
Segmentation fault

[thommey]

vircio@vps:~/eggdrop$ gdb ./eggdrop core
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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For help, type "help".
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Reading symbols from ./eggdrop...done.

warning: core file may not match specified executable file.
[New LWP 11533]
[New LWP 11534]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `./eggdrop -mn Profeta.conf'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f27a20755d0 in __libc_res_nsearch () from /lib/x86_64-linux-gnu/libresolv.so.2
[Current thread is 1 (Thread 0x7f27a4e5d040 (LWP 11533))]
(gdb) bt full
#0  0x00007f27a20755d0 in __libc_res_nsearch () from /lib/x86_64-linux-gnu/libresolv.so.2
No symbol table info available.
#1  0x00007f27a22865f6 in _nss_dns_gethostbyname3_r () from /lib/x86_64-linux-gnu/libnss_dns.so.2
No symbol table info available.
#2  0x00007f27a2286861 in _nss_dns_gethostbyname2_r () from /lib/x86_64-linux-gnu/libnss_dns.so.2
No symbol table info available.
#3  0x00007f27a33ab3ef in gethostbyname2_r () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#4  0x00007f27a33ab0dc in gethostbyname2 () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#5  0x000055e3ff1f6a84 in setsockname (addr=0x7ffe13611e60, src=src@entry=0x55e3ff4305a0 <vhost> "", port=port@entry=0, allowres=allowres@entry=1) at net.c:166
        hp = <optimized out>
        af = 0
        pref = <optimized out>
#6  0x000055e3ff1f6b73 in getvhost (addr=addr@entry=0x7ffe13611e60, af=<optimized out>) at net.c:258
        h = 0x55e3ff4305a0 <vhost> ""
#7  0x000055e3ff1f899b in open_telnet_raw (sock=9, addr=0x55e400803d84) at net.c:512
        name = {family = 0, addrlen = 0, addr = {sa = {sa_family = 0, sa_data = '\000' <repeats 13 times>}, s4 = {sin_family = 0, sin_port = 0, sin_addr = {s_addr = 0},
              sin_zero = "\000\000\000\000\000\000\000"}, s6 = {sin6_family = 0, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0,
                    0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}}
        res_len = 0
        sockset = {__fds_bits = {139808196416544, 139808218393339, -1, 0, 139808196416544, 139808196416544, 139809775419391, 139808196416546, -1, 139808221721856, 0, 0, 0, 46, 94437728520000, 139808234517369}}
        tv = {tv_sec = 140729223553200, tv_usec = 140729223553200}
        i = <optimized out>
        rc = <optimized out>
        res = 0
#8  0x00007f27a17ed3b7 in server_resolve_success (servidx=3) at .././server.mod/servmsg.c:1291
        pass = '\000' <repeats 120 times>
#9  0x000055e3ff1e9e17 in dns_dccipbyhost (ip=0x55e402aed01c, hostn=<optimized out>, ok=<optimized out>, other=<optimized out>) at dns.c:159
        idx = 3
#10 0x000055e3ff1ea6f0 in call_ipbyhost (hostn=0x55e402aed050 "irc.linksoft.com.br", ip=0x55e402aed01c, ok=1) at dns.c:446
        de = 0x55e402aece00
        ode = 0x0
        nde = 0x0
#11 0x00007f27a1c223af in dns_ack () at .././dns.mod/coredns.c:1109
        from = {sin_family = 2, sin_port = 13568, sin_addr = {s_addr = 16843009}, sin_zero = "\000\000\000\000\000\000\000"}
        fromlen = 16
---Type <return> to continue, or q <return> to quit---
        r = <optimized out>
        i = <optimized out>
#12 dns_socket (idx=<optimized out>, buf=<optimized out>, len=<optimized out>) at .././dns.mod/dns.c:104
No locals.
#13 0x000055e3ff1f04b0 in mainloop (toplevel=1) at ./main.c:879
        idx = <optimized out>
        socket_cleanup = 4
        xx = <optimized out>
        i = 0
        eggbusy = 1
        tclbusy = 0
        buf = "\000_y\000\344U\000\000\000N\177\000\344U\000\000\001\000\000\000\000\000\000\000}\225\235\244'\177\000\000\030$a\023\376\177\000\000\001\000\000\000\000\000\000\000@\301y\000\344U\000\000\000\000\000\000\001\000\000\000 $a\023\376\177", '\000' <repeats 22 times>, "\a", '\000' <repeats 44 times>, "aR\357n\r@_", '\000' <repeats 17 times>, "N\177\000\344U\000\000\340G?'\177\000\000\200$a\023\376\177\000\000\000\000\000\000\000\000\000\000Pxz\000\344U\000\000/"...
#14 0x000055e3ff1c8dba in main (arg_c=<optimized out>, arg_v=<optimized out>) at ./main.c:1272
        i = <optimized out>
        xx = <optimized out>
        s = "Thu May 17 2018\000:18 2018"
        f = <optimized out>
        sv = {__sigaction_handler = {sa_handler = 0x55e3ff1efab0 <got_alarm>, sa_sigaction = 0x55e3ff1efab0 <got_alarm>}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x0}
        chan = <optimized out>
        cdlim = {rlim_cur = 18446744073709551615, rlim_max = 18446744073709551615}

Unloading dns.mod fixes it. vhost is empty. setting a vhost didn't help.

[michaelortmann]

1. Do you still have the core file?

2. I am thinking about replacing gethostbyname*() with getaddrinfo(). if replaced this issue could be closed, because the segfault happened in gethostbyname*().