[Pan-users] Segfaults from recent pan2.git

[walt]

This is from git 7161f501, but the crash can take 15-30 minutes to happen, so 
bisecting
it is a bit dicey.  I'll bisect my way through this, but that will take some 
time:

(BTW, the traces vary a bit, but every trace includes gnutls (v3.2.9))

(gdb) bt
#0  0x00007ffff3c17f13 in ?? () from /lib64/libc.so.6
#1  0x00007ffff3c19196 in ?? () from /lib64/libc.so.6
#2  0x00007ffff3c1b460 in malloc () from /lib64/libc.so.6
#3  0x00007ffff4bcbff9 in _mbuffer_alloc (address@hidden, maximum_size=16724) 
at gnutls_mbuffers.c:264
#4  0x00007ffff4bcd5ea in _gnutls_stream_read (ms=0x7ffffff7c8ec, 
pull_func=0x7ffff4be8000 <system_read>, size=5, bufel=<synthetic pointer>, 
    session=0x7fffc8105b90) at gnutls_buffers.c:289
#5  _gnutls_read (ms=0x7ffffff7c8ec, pull_func=0x7ffff4be8000 <system_read>, 
size=5, bufel=<synthetic pointer>, session=0x7fffc8105b90)
    at gnutls_buffers.c:390
#6  _gnutls_io_read_buffered (address@hidden, total=5, address@hidden, 
address@hidden)
    at gnutls_buffers.c:510
#7  0x00007ffff4bc7365 in recv_headers (ms=0x7ffffff7c8ec, 
record=0x7ffffff7c940, htype=4294967295, type=GNUTLS_APPLICATION_DATA, 
    session=0x7fffc8105b90) at gnutls_record.c:1035
#8  _gnutls_recv_in_buffers (address@hidden, address@hidden, address@hidden, 
address@hidden)
    at gnutls_record.c:1163
#9  0x00007ffff4bc8ce6 in _gnutls_recv_int (session=0x7fffc8105b90, 
address@hidden, address@hidden, 
    data=0x7ffffff7ca10 "400 Session 
timeout.\r\n^Ŷ\247\001\002\337r\362\235X\206c\031\303\351\355\037`\217\347;\246\030\004\230\030\060\304b\021\345\016\302\t\362,tW5\r\n\207s\314l\216z\"address@hidden;\022kP\361\025M\222\063N,\214\244\061\257\004\367\313=}`\203f
 x\331bU\363\322\376~P$\306IC\250\230\332L\344\036g\037\232\200E \035\244\270\t 
i\324\244\t\r\n\305rw1߶"..., data_size=524288, address@hidden, ms=0) at 
gnutls_record.c:1405
#10 0x00007ffff4bc9205 in gnutls_record_recv (session=<optimized out>, 
data=<optimized out>, data_size=<optimized out>) at gnutls_record.c:1582
#11 0x0000000000558f4c in pan::GIOChannelSocketGnuTLS::gnutls_read_line 
(address@hidden, address@hidden, 
    address@hidden, address@hidden) at 
../../../pan/tasks/socket-impl-openssl.cc:539
#12 0x000000000055904e in pan::GIOChannelSocketGnuTLS::do_read 
(this=0x7fffc810c730) at ../../../pan/tasks/socket-impl-openssl.cc:617
#13 0x000000000055a3e5 in pan::GIOChannelSocketGnuTLS::gio_func 
(this=0x7fffc810c730, channel=0x7fffc810f410, cond=G_IO_IN)
    at ../../../pan/tasks/socket-impl-openssl.cc:737
#14 0x00007ffff5371a3f in g_main_context_dispatch () from 
/usr/lib64/libglib-2.0.so.0
#15 0x00007ffff5371dc8 in ?? () from /usr/lib64/libglib-2.0.so.0
#16 0x00007ffff5372232 in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#17 0x00007ffff76c978f in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
#18 0x0000000000461694 in run_pan_in_window (group_prefs=..., 
window=0x15735040, prefs=..., queue=..., data=..., _gui=0x15734640)
    at ../../../pan/gui/pan.cc:553
#19 main (argc=1, argv=0x7fffffffdd88) at ../../../pan/gui/pan.cc:1107