GNU gdb 6.6-debian
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This GDB was configured as "i486-linux-gnu"...
(no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(gdb) handle SIG33 pass nostop noprint
Signal        Stop	Print	Pass to program	Description
SIG33         No	No	Yes		Real-time event 33
(gdb) set pagination 0
(gdb) run
Starting program: /usr/bin/evince 
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[Thread debugging using libthread_db enabled]
[New Thread -1230960960 (LWP 10546)]
[New Thread -1232516208 (LWP 10549)]

Program received signal SIGINT, Interrupt.
[Switching to Thread -1230960960 (LWP 10546)]
0xffffe410 in __kernel_vsyscall ()
(gdb) backtrace full
#0  0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb725b498 in connect () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2  0xb50fe19c in httpAddrConnect (addrlist=0x85429c0, sock=0x8545c88) at http-addrlist.c:114
	val = 1
#3  0xb50fca36 in httpReconnect (http=0x8545c88) at http.c:1657
	addr = <value optimized out>
#4  0xb50fd146 in httpConnectEncrypt (host=0x8544fc8 "localhost", port=631, encryption=HTTP_ENCRYPT_IF_REQUESTED) at http.c:440
	http = (http_t *) 0x8545c88
	addrlist = (http_addrlist_t *) 0x85429c0
	service = "631\000P¨·(z8\bQ\000\000\000{631\000\234Ù¿¼P½·pp\023\b(\235Ù¿÷U¨·pp\023\b©g¼·\030\235Ù¿\000\000\000\000\230\235Ù¿\224\235Ù¿(\235Ù¿©g¼·\030\235Ù¿\230\235Ù¿A\025ø¶Á\006\037·Q", '\0' <repeats 11 times>, "¤±8·`\2206\b¬(ø¶¨\235Ù¿XwD\bdá,·\034b?·<1+·ôÏ,·ðt&·\030@\020\bX\235Ù¿\205Bø¶´!{·`wD\bh\235Ù¿\205ÿz·\001\000\000\000\034b?·¸\235Ù¿é]8·P-\016\bôÏ,·A\025ø¶\205Bø¶Ì\237"...
#5  0xb516b8c9 in _connect (request=0x834f550) at /build/buildd/gtk+2.0-2.12.0/modules/printbackends/cups/gtkcupsutils.c:588
No locals.
#6  0xb516c60d in gtk_cups_request_read_write (request=0x834f550) at /build/buildd/gtk+2.0-2.12.0/modules/printbackends/cups/gtkcupsutils.c:218
No locals.
#7  0xb51678ee in cups_dispatch_watch_check (source=0x848a1d8) at /build/buildd/gtk+2.0-2.12.0/modules/printbackends/cups/gtkprintbackendcups.c:541
	poll_state = GTK_CUPS_HTTP_IDLE
	result = -1256818592
#8  0xb736bfa2 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#9  0xb736c33e in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#10 0x0810b278 in ?? ()
No symbol table info available.
#11 0x00000000 in ?? ()
No symbol table info available.
(gdb) info registers
eax            0xfffffe00	-512
ecx            0xbfd99c30	-1076257744
edx            0xb5119fcc	-1257136180
ebx            0x3	3
esp            0xbfd99c18	0xbfd99c18
ebp            0xbfd99c68	0xbfd99c68
esi            0x0	0
edi            0x85429c0	139733440
eip            0xffffe410	0xffffe410 <__kernel_vsyscall+16>
eflags         0x246	[ PF ZF IF ]
cs             0x73	115
ss             0x7b	123
ds             0x7b	123
es             0x7b	123
fs             0x0	0
gs             0x33	51
(gdb) thread apply all backtrace

Thread 2 (Thread -1232516208 (LWP 10549)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb6f83676 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb726731d in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libc.so.6
#3  0x08061f98 in ?? ()
#4  0x0813a360 in ?? ()
#5  0x08132180 in ?? ()
#6  0xb6894398 in ?? ()
#7  0xb7267526 in pthread_mutex_unlock () from /lib/tls/i686/cmov/libc.so.6
#8  0xb738c5af in ?? () from /usr/lib/libglib-2.0.so.0
#9  0x00000000 in ?? ()

Thread 1 (Thread -1230960960 (LWP 10546)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb725b498 in connect () from /lib/tls/i686/cmov/libc.so.6
#2  0xb50fe19c in httpAddrConnect (addrlist=0x85429c0, sock=0x8545c88) at http-addrlist.c:114
#3  0xb50fca36 in httpReconnect (http=0x8545c88) at http.c:1657
#4  0xb50fd146 in httpConnectEncrypt (host=0x8544fc8 "localhost", port=631, encryption=HTTP_ENCRYPT_IF_REQUESTED) at http.c:440
#5  0xb516b8c9 in _connect (request=0x834f550) at /build/buildd/gtk+2.0-2.12.0/modules/printbackends/cups/gtkcupsutils.c:588
#6  0xb516c60d in gtk_cups_request_read_write (request=0x834f550) at /build/buildd/gtk+2.0-2.12.0/modules/printbackends/cups/gtkcupsutils.c:218
#7  0xb51678ee in cups_dispatch_watch_check (source=0x848a1d8) at /build/buildd/gtk+2.0-2.12.0/modules/printbackends/cups/gtkprintbackendcups.c:541
#8  0xb736bfa2 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#9  0xb736c33e in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x0810b278 in ?? ()
#11 0x00000000 in ?? ()
(gdb) quit
The program is running.  Exit anyway? (y or n)