I'm seeing the same problem. I did a dist-upgrade of unstable on April 3rd and now any attempt to start a jabber session causes pidgin to SEGV in __xmlRaiseError in libxml2 (2.6.32.dfsg-5). Specifically, at line 612 of error.c in libxml2, schannel is called with what appears to be a bad function pointer. As a workaround, I set a breakpoint at line 611, set schannel = 0 on each break, and pidgin goes on to run normally. Here's a backtrace of the SEGV (using libxml2-dbg, libgtk2.0-0-dbg, libglib2.0-0-dbg, libssl0.9.8-dbg and pidgin-dbg). I can't really go any further with this but hopefully this will be of help.
$ gdb ../../pidgin/pidgin-2.5.5/build/pidgin/.libs/pidgin GNU gdb 6.8-debian Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu"... (gdb) run Starting program: /var/home/src/pidgin/pidgin-2.5.5/build/pidgin/.libs/pidgin [Thread debugging using libthread_db enabled] [New Thread 0xb6f92970 (LWP 30956)] warning: Lowest section in /usr/lib/libicudata.so.40 is .hash at 000000b4 Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb6f92970 (LWP 30956)] 0xb4ece1e0 in ?? () (gdb) bt #0 0xb4ece1e0 in ?? () #1 0xb73f4ef6 in __xmlRaiseError (schannel=0xb4ece1e0, channel=0, data=0x836c1e4, ctx=0x8802650, nod=0x0, domain=1, code=5, level=XML_ERR_FATAL, file=0x0, line=1, str1=0x0, str2=0x0, str3=0x0, int1=0, col=296, msg=0xb74e7068 "Extra content at the end of the document\n") at error.c:612 #2 0xb73f951b in xmlFatalErr (ctxt=0x8802650, error=137806308, info=0xb750a678 "\002") at parser.c:464 #3 0xb740e8da in xmlParseChunk__internal_alias (ctxt=0x8802650, chunk=0x0, size=0, terminate=1) at parser.c:11473 #4 0xb52f5571 in jabber_parser_free (js=0x87f7948) at ../../../../libpurple/protocols/jabber/parser.c:210 #5 0xb52f55ad in jabber_parser_setup (js=0x87f7948) at ../../../../libpurple/protocols/jabber/parser.c:205 #6 0xb52eee6e in jabber_stream_init (js=0x87f7948) at ../../../../libpurple/protocols/jabber/jabber.c:81 #7 0xb52f024b in jabber_login_callback_ssl (data=0x87f73a0, gsc=0x81bcfe0, cond=PURPLE_INPUT_READ) at ../../../../libpurple/protocols/jabber/jabber.c:579 #8 0xb579c475 in ssl_nss_verified_cb (st=PURPLE_CERTIFICATE_VALID, userdata=0x81bcfe0) at ../../../../libpurple/plugins/ssl/ssl-nss.c:251 #9 0xb76c21b9 in purple_certificate_verify_complete (vrq=0x88292a8, st=PURPLE_CERTIFICATE_VALID) at ../../libpurple/certificate.c:105 #10 0xb76c2ab0 in x509_tls_cached_start_verify (vrq=0x88292a8) at ../../libpurple/certificate.c:1273 #11 0xb76c332f in purple_certificate_verify (verifier=0xb775e5e0, subject_name=0x8380ff0 "jabber.org", cert_chain=0x83d2a30, cb=0xb579c410 <ssl_nss_verified_cb>, cb_data=0x81bcfe0) at ../../libpurple/certificate.c:80 #12 0xb579c6ee in ssl_nss_handshake_cb (data=0x81bcfe0, fd=20, cond=PURPLE_INPUT_READ) at ../../../../libpurple/plugins/ssl/ssl-nss.c:357 #13 0x080a8943 in pidgin_io_invoke (source=0x87f82b0, condition=<value optimized out>, data=0x8119330) at ../../pidgin/gtkeventloop.c:78 #14 0xb77d434d in g_io_unix_dispatch (source=0x87faf80, callback=0x80a8900 <pidgin_io_invoke>, user_data=0x8119330) at /build/buildd-glib2.0_2.20.0-2-i386-rcJiVy/glib2.0-2.20.0/glib/giounix.c:162 #15 0xb779d718 in IA__g_main_context_dispatch (context=0x8137560) at /build/buildd-glib2.0_2.20.0-2-i386-rcJiVy/glib2.0-2.20.0/glib/gmain.c:1814 #16 0xb77a0c7b in g_main_context_iterate (context=0x8137560, block=1, dispatch=1, self=0x8110188) at /build/buildd-glib2.0_2.20.0-2-i386-rcJiVy/glib2.0-2.20.0/glib/gmain.c:2448 #17 0xb77a114a in IA__g_main_loop_run (loop=0x87f3738) at /build/buildd-glib2.0_2.20.0-2-i386-rcJiVy/glib2.0-2.20.0/glib/gmain.c:2656 #18 0xb7a823e9 in IA__gtk_main () at /build/buildd-gtk+2.0_2.14.7-5-i386-7mYrFV/gtk+2.0-2.14.7/gtk/gtkmain.c:1200 #19 0x080c29f6 in main (argc=0, argv=0x836f868) at ../../pidgin/gtkmain.c:881 (gdb) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
