Bug#630381: asterisk: sporadic segfault in chan_sip.so since 1.6.2.9-2+squeeze2
Maurice Massar
massar at unix-ag.uni-kl.de
Mon Jun 13 14:36:46 UTC 2011
Package: asterisk
Version: 1:1.6.2.9-2+squeeze2
Severity: important
Tags: squeeze
hi,
our asterisk process keeps segfaulting since about over month:
[...?]
May 11 03:04:35 asterisk kernel: [ 530982.766458] asterisk[21999]: segfault at c ip 00000000f6273869 sp 00000000f54fe420 error 4 in chan_sip.so[f620b000+7e000]
[...]
Jun 9 11:55:37 asterisk kernel: [3064066.396045] asterisk[11373]: segfault at c ip 00000000f6227869 sp 00000000f5402420 error 4 in chan_sip.so[f61bf000+7e000]
Jun 10 06:54:06 asterisk kernel: [3132257.899373] asterisk[17987]: segfault at c ip 00000000f6213869 sp 00000000f58e7420 error 4 in chan_sip.so[f61ab000+7e000]
Jun 10 06:57:33 asterisk kernel: [3132464.951748] asterisk[18054]: segfault at c ip 00000000f623a869 sp 00000000f567a420 error 4 in chan_sip.so[f61d2000+7e000]
Jun 10 06:59:56 asterisk kernel: [3132607.369580] asterisk[18116]: segfault at c ip 00000000f62f0869 sp 00000000f5730420 error 4 in chan_sip.so[f6288000+7e000]
Jun 10 07:00:49 asterisk kernel: [3132660.206272] asterisk[18207]: segfault at c ip 00000000f622b869 sp 00000000f566b420 error 4 in chan_sip.so[f61c3000+7e000]
Jun 10 07:43:18 asterisk kernel: [3135205.103355] asterisk[18482]: segfault at c ip 00000000f62bf869 sp 00000000f56ff420 error 4 in chan_sip.so[f6257000+7e000]
Jun 10 07:55:58 asterisk kernel: [3135963.208988] asterisk[18585]: segfault at c ip 00000000f62d3869 sp 00000000f56d7420 error 4 in chan_sip.so[f626b000+7e000]
Jun 10 07:58:42 asterisk kernel: [ 82.821256] asterisk[ 1168]: segfault at c ip 00000000f6243869 sp 00000000f5953420 error 4 in chan_sip.so[f61db000+7e000]
Jun 10 08:00:48 asterisk kernel: [ 208.746595] asterisk[ 1293]: segfault at c ip 00000000f624c869 sp 00000000f595c420 error 4 in chan_sip.so[f61e4000+7e000]
Jun 10 08:25:45 asterisk kernel: [ 1703.199227] asterisk[ 1483]: segfault at c ip 00000000f6294869 sp 00000000f56d4420 error 4 in chan_sip.so[f622c000+7e000]
Jun 10 08:43:14 asterisk kernel: [ 2750.321637] asterisk[ 1632]: segfault at c ip 00000000f628c869 sp 00000000f56cc420 error 4 in chan_sip.so[f6224000+7e000]
Jun 10 08:44:50 asterisk kernel: [ 2845.784976] asterisk[ 1687]: segfault at c ip 00000000f627c869 sp 00000000f5680420 error 4 in chan_sip.so[f6214000+7e000]
Jun 10 08:45:48 asterisk kernel: [ 2903.932739] asterisk[ 1731]: segfault at c ip 00000000f623f869 sp 00000000f567f420 error 4 in chan_sip.so[f61d7000+7e000]
Jun 13 00:49:25 asterisk kernel: [ 233123.738117] asterisk[29114]: segfault at c ip 00000000f6261869 sp 00000000f5971420 error 4 in chan_sip.so[f61f9000+7e000]
Jun 13 00:50:43 asterisk kernel: [ 233201.843818] asterisk[29190]: segfault at c ip 00000000f62f2869 sp 00000000f5732420 error 4 in chan_sip.so[f628a000+7e000]
"instruction-pointer - base-address" is 0x68869 in all lines,
fetching asterisk-dbg and running addr2line:
asterisk:~$ addr2line -f -e /usr/lib/debug/usr/lib/asterisk/modules/chan_sip.so 0x68869
_sip_tcp_helper_thread
/build/buildd-asterisk_1.6.2.9-2+squeeze2-i386-uKYmpc/asterisk-1.6.2.9/channels/chan_sip.c:3200
line 3200 of channels/chan_sip.c was introduced by debian/patches/AST-2011-005-p2:
[line 3200 is the one starting "+ if (!tcptls_session->client"]
===
@@ -3074,6 +3197,10 @@ static void *_sip_tcp_helper_thread(stru
ast_debug(2, "Shutting down thread for %s server\n", tcptls_session->ssl ? "SSL" : "TCP");
cleanup:
+ if (!tcptls_session->client && !authenticated) {
+ ast_atomic_fetchadd_int(&unauth_sessions, -1);
+ }
+
if (me) {
ao2_t_unlink(threadt, me, "Removing tcptls helper thread, thread is closing");
ao2_t_ref(me, -1, "Removing tcp_helper_threads threadinfo ref");
===
tcptls_session is a "struct ast_tcptls_session_instance", and "client"
is its fourth member, matching to segfault address 0x0000000c if
tcptls_session == NULL.
Suspiciously, a bit below in line 3222 there is an extra
"if (tcptls_session) {" test around some code...
cu
Maurice Massar
-- System Information:
Debian Release: 6.0.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: i386 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages asterisk depends on:
ii adduser 3.112+nmu2 add and remove users and groups
ii asterisk-config 1:1.6.2.9-2+squeeze2 Configuration files for Asterisk
ii asterisk-sounds-ma 1:1.6.2.9-2+squeeze2 Core Sound files for Asterisk (Eng
ii dahdi 1:2.2.1.1-1 utilities for using the DAHDI kern
ii libasound2 1.0.23-2.1 shared library for ALSA applicatio
ii libc-client2007e 8:2007e~dfsg-3.1 c-client library for mail protocol
ii libc6 2.11.2-10 Embedded GNU C Library: Shared lib
ii libcap2 1:2.19-3 support for getting/setting POSIX.
ii libcurl3 7.21.0-1 Multi-protocol file transfer libra
ii libgcc1 1:4.4.5-8 GCC support library
ii libglib2.0-0 2.24.2-1 The GLib library of C routines
ii libgmime-2.0-2a 2.2.25-2 MIME library
ii libgsm1 1.0.13-3 Shared libraries for GSM speech co
ii libiksemel3 1.2-4 C library for the Jabber IM platfo
ii libjack-jackd2-0 [ 1.9.6~dfsg.1-2 JACK Audio Connection Kit (librari
ii libldap-2.4-2 2.4.23-7 OpenLDAP libraries
ii liblua5.1-0 5.1.4-5 Simple, extensible, embeddable pro
ii libncurses5 5.7+20100313-5 shared libraries for terminal hand
ii libnewt0.52 0.52.11-1 Not Erik's Windowing Toolkit - tex
ii libogg0 1.2.0~dfsg-1 Ogg bitstream library
ii libopenais3 1.1.2-2 Standards-based cluster framework
ii libopenr2-3 1.3.0-2 MFC/R2 (telephony) call setup libr
ii libpopt0 1.16-1 lib for parsing cmdline parameters
ii libpq5 8.4.7-0squeeze2 PostgreSQL C client library
ii libpri1.4 1.4.11.3-1 Primary Rate ISDN specification li
ii libradiusclient-ng 0.5.6-1.1 Enhanced RADIUS client library
ii libresample1 0.1.3-3 real-time audio resampling library
ii libsdl1.2debian 1.2.14-6.1 Simple DirectMedia Layer
ii libsnmp15 5.4.3~dfsg-2 SNMP (Simple Network Management Pr
ii libspandsp2 0.0.6~pre12-1 Telephony signal processing librar
ii libspeex1 1.2~rc1-1 The Speex codec runtime library
ii libspeexdsp1 1.2~rc1-1 The Speex extended runtime library
ii libsqlite0 2.8.17-6 SQLite shared library
ii libss7-1 1.0.2-1 Signalling System 7 (ss7) library
ii libssl0.9.8 0.9.8o-4squeeze1 SSL shared libraries
ii libstdc++6 4.4.5-8 The GNU Standard C++ Library v3
ii libsybdb5 0.82-7 libraries for connecting to MS SQL
ii libtiff4 3.9.4-5+squeeze2 Tag Image File Format (TIFF) libra
ii libtonezone2.0 1:2.2.1.1-1 tonezone library (runtime)
ii libvorbis0a 1.3.1-1 The Vorbis General Audio Compressi
ii libvorbisenc2 1.3.1-1 The Vorbis General Audio Compressi
ii libvpb0 4.2.52-2 Voicetronix telephony hardware use
ii libx11-6 2:1.3.3-4 X11 client-side library
ii libxml2 2.7.8.dfsg-2+squeeze1 GNOME XML library
ii unixodbc 2.2.14p2-1 ODBC tools libraries
ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime
Versions of packages asterisk recommends:
pn sox <none> (no description available)
Versions of packages asterisk suggests:
pn asterisk-dev <none> (no description available)
pn asterisk-doc <none> (no description available)
pn asterisk-h323 <none> (no description available)
-- Configuration Files:
/etc/default/asterisk changed [not included]
-- no debconf information
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