GNU gdb 6.6-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu"...
Using host libthread_db library "/lib/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/esd 
[Thread debugging using libthread_db enabled]
[New Thread 47504115912752 (LWP 2170)]

Program received signal SIGINT, Interrupt.
[Switching to Thread 47504115912752 (LWP 2170)]
0x00002b346939963f in poll () from /lib/libc.so.6
(gdb) backtrace full
#0  0x00002b346939963f in poll () from /lib/libc.so.6
No symbol table info available.
#1  0x00002b3469898182 in snd_pcm_wait_nocheck () from /usr/lib/libasound.so.2
No symbol table info available.
#2  0x00002b34698afebe in ?? () from /usr/lib/libasound.so.2
No symbol table info available.
#3  0x00002b3468c2041f in esd_audio_flush () from /usr/lib/libesd.so.0
No symbol table info available.
#4  0x00000000004044cc in wait_for_clients_and_data ()
No symbol table info available.
#5  0x000000000040322b in main ()
No symbol table info available.
#6  0x00002b34692edb04 in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#7  0x0000000000402129 in _start ()
No symbol table info available.
(gdb) info registers
rax            0xfffffffffffffffc	-4
rbx            0xffffffff	4294967295
rcx            0xffffffffffffffff	-1
rdx            0xffffffffffffffff	-1
rsi            0x1	1
rdi            0x7fff422b3930	140734303516976
rbp            0x1	0x1
rsp            0x7fff422b38f0	0x7fff422b38f0
r8             0x0	0
r9             0x0	0
r10            0x7fff422b39b0	140734303517104
r11            0x246	582
r12            0x7fff422b3930	140734303516976
r13            0x7fff422b3930	140734303516976
r14            0x1	1
r15            0x642b90	6564752
rip            0x2b346939963f	0x2b346939963f <poll+47>
eflags         0x246	[ PF ZF IF ]
cs             0x33	51
ss             0x2b	43
ds             0x0	0
es             0x0	0
fs             0x0	0
gs             0x0	0
fctrl          0x37f	895
fstat          0x0	0
ftag           0xffff	65535
fiseg          0x0	0
fioff          0x0	0
foseg          0x0	0
fooff          0x0	0
fop            0x0	0
mxcsr          0x1fa0	[ PE IM DM ZM OM UM PM ]
(gdb) thread apply all backtrace

Thread 1 (Thread 47504115912752 (LWP 2170)):
#0  0x00002b346939963f in poll () from /lib/libc.so.6
#1  0x00002b3469898182 in snd_pcm_wait_nocheck () from /usr/lib/libasound.so.2
#2  0x00002b34698afebe in ?? () from /usr/lib/libasound.so.2
#3  0x00002b3468c2041f in esd_audio_flush () from /usr/lib/libesd.so.0
#4  0x00000000004044cc in wait_for_clients_and_data ()
#5  0x000000000040322b in main ()
#6  0x00002b34692edb04 in __libc_start_main () from /lib/libc.so.6
#7  0x0000000000402129 in _start ()
(gdb) quit
The program is running.  Exit anyway? (y or n)