[Freeswitch-users] High CPU load but only few sessions

Helmut Kuper helmut.kuper at ewetel.de
Thu Mar 26 08:01:53 PDT 2009 

Hi Mathieu,

thx for the help :)

The epoll_wait function on PID 14048 listens on fd 21 which points to
"/anon_inode:[eventpoll]"



On 26.03.2009 15:26, Mathieu Rene wrote:
> thread apply all bt
Here the output:

Core was generated by `/opt/app/voip/ippbx.prod/bin/freeswitch'.
[New process 14034]
[New process 14035]
[New process 14036]
[New process 14037]
[New process 14038]
[New process 14039]
[New process 14042]
[New process 14043]
[New process 14044]
[New process 14045]
[New process 14046]
[New process 14047]
[New process 14048]
[New process 14049]
[New process 14050]
[New process 14051]
[New process 14052]
[New process 14054]
[New process 14055]
[New process 14056]
[New process 14057]
[New process 14058]
[New process 14059]
[New process 14033]
#0  0xb7ee6410 in __kernel_vsyscall ()
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(gdb) thread apply all bt

Thread 24 (process 14033):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e00a59 in apr_sleep (t=1000000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xb7d9e334 in switch_core_runtime_loop (bg=1) at src/switch_core.c:656
#5  0x0804a459 in main (argc=2, argv=0xbf9d27a4) at src/switch.c:666

Thread 23 (process 14059):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c41c07 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb36ef7e1 in ?? () from /opt/app/voip/ippbx.prod/mod/mod_xml_rpc.so
#3  0xb36e2612 in ChanSwitchAccept (chanSwitchP=0x81cce68,
channelPP=0xab1f00e0, channelInfoPP=0xab1f00dc, errorP=0xab1f00e4)
    at ../../../../libs/xmlrpc-c/lib/abyss/src/chanswitch.c:149
#4  0xb36ee351 in ServerRun (serverP=0xb372092c) at
../../../../libs/xmlrpc-c/lib/abyss/src/server.c:908
#5  0xb36df892 in mod_xml_rpc_runtime () at mod_xml_rpc.c:867
#6  0xb7da8473 in switch_loadable_module_exec (thread=0x80c38a8,
obj=0x80c3698) at src/switch_loadable_module.c:94
#7  0xb7dfeeb6 in dummy_worker (opaque=0x80c38a8) at
threadproc/unix/thread.c:138
#8  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 22 (process 14058):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7d00bb8 in accept () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7dfdbcd in apr_socket_accept (new=0xab9f134c, sock=0x82639e8,
connection_context=0x66a76500) at network_io/unix/sockets.c:187
#3  0xb7d7cf4b in switch_socket_accept (new_sock=0xab9f134c,
sock=0x82639e8, pool=0x66a76500) at src/switch_apr.c:664
#4  0xb328ff2c in mod_event_socket_runtime () at mod_event_socket.c:2293
#5  0xb7da8473 in switch_loadable_module_exec (thread=0x80c3640,
obj=0x80c3430) at src/switch_loadable_module.c:94
#6  0xb7dfeeb6 in dummy_worker (opaque=0x80c3640) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 21 (process 14057):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e00a59 in apr_sleep (t=1000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xb7de0c25 in softtimer_runtime () at src/switch_time.c:459
#5  0xb7da8473 in switch_loadable_module_exec (thread=0x80c33d8,
obj=0x80c31c8) at src/switch_loadable_module.c:94
#6  0xb7dfeeb6 in dummy_worker (opaque=0x80c33d8) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 20 (process 14056):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0x80c4760, mutex=0x80c4730)
at locks/unix/thread_cond.c:68
#3  0xb7d7d8b4 in switch_thread_cond_wait (cond=0x80c4760,
mutex=0x80c4730) at src/switch_apr.c:359
#4  0xb7ddf2c8 in timer_next (timer=0xaccae0f8) at src/switch_time.c:335
#5  0xb7d8ad7c in switch_core_timer_next (timer=0x26f180a8) at
src/switch_core_timer.c:76
---Type <return> to continue, or q <return> to quit---
#6  0xad4e67dc in ?? () from
/opt/app/voip/ippbx.prod/mod/mod_local_stream.so
#7  0xb7dfeeb6 in dummy_worker (opaque=0xb272b2e0) at
threadproc/unix/thread.c:138
#8  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 19 (process 14055):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0x80c4760, mutex=0x80c4730)
at locks/unix/thread_cond.c:68
#3  0xb7d7d8b4 in switch_thread_cond_wait (cond=0x80c4760,
mutex=0x80c4730) at src/switch_apr.c:359
#4  0xb7ddf2c8 in timer_next (timer=0xad4af0f8) at src/switch_time.c:335
#5  0xb7d8ad7c in switch_core_timer_next (timer=0x26f180a5) at
src/switch_core_timer.c:76
#6  0xad4e67dc in ?? () from
/opt/app/voip/ippbx.prod/mod/mod_local_stream.so
#7  0xb7dfeeb6 in dummy_worker (opaque=0xb27272d0) at
threadproc/unix/thread.c:138
#8  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 18 (process 14054):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0x80c4760, mutex=0x80c4730)
at locks/unix/thread_cond.c:68
#3  0xb7d7d8b4 in switch_thread_cond_wait (cond=0x80c4760,
mutex=0x80c4730) at src/switch_apr.c:359
#4  0xb7ddf2c8 in timer_next (timer=0xadf700f8) at src/switch_time.c:335
#5  0xb7d8ad7c in switch_core_timer_next (timer=0x26f180a6) at
src/switch_core_timer.c:76
#6  0xad4e67dc in ?? () from
/opt/app/voip/ippbx.prod/mod/mod_local_stream.so
#7  0xb7dfeeb6 in dummy_worker (opaque=0xb27232c0) at
threadproc/unix/thread.c:138
#8  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 17 (process 14052):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e00a59 in apr_sleep (t=1000000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xaedcce06 in ?? () from /opt/app/voip/ippbx.prod/mod/mod_fifo.so
#5  0xb7dfeeb6 in dummy_worker (opaque=0xaea4cb90) at
threadproc/unix/thread.c:138
#6  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 16 (process 14051):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e00a59 in apr_sleep (t=100000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xb315892f in sofia_presence_event_thread_run (thread=0x80f1bb0,
obj=0x0) at sofia_presence.c:664
#5  0xb7dfeeb6 in dummy_worker (opaque=0x80f1bb0) at
threadproc/unix/thread.c:138
#6  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 15 (process 14050):
#0  0xb7ee6410 in __kernel_vsyscall ()
---Type <return> to continue, or q <return> to quit---
#1  0xb7c41c07 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb280bf00 in wanpipe_wait (zchan=0x8146fc8, flags=0xafe0ef8c,
to=100) at src/ozmod/ozmod_wanpipe/ozmod_wanpipe.c:255
#3  0xafeecb17 in zap_channel_wait (zchan=0x64, flags=0xafe0ef8c,
to=100) at src/zap_io.c:1488
#4  0xafebfb54 in zap_isdn_run (me=0x8112ab0, obj=0x811ff58) at
src/ozmod/ozmod_isdn/ozmod_isdn.c:1736
#5  0xafef747a in thread_launch (args=0x8112ab0) at src/zap_threadmutex.c:74
#6  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 14 (process 14049):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e00a59 in apr_sleep (t=10000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xb313e306 in sofia_profile_worker_thread_run (thread=0x81004c8,
obj=0x80ffb38) at sofia.c:656
#5  0xb7dfeeb6 in dummy_worker (opaque=0x81004c8) at
threadproc/unix/thread.c:138
#6  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 13 (process 14048):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c4c676 in epoll_wait () from /lib/tls/i686/cmov/libc.so.6
#2  0xb321998d in su_epoll_port_wait_events (self=0x8107f70, tout=1000)
at su_epoll_port.c:495
#3  0xb3220218 in su_base_port_run (self=0x8107f70) at su_base_port.c:349
#4  0xb321af8f in su_port_run (self=0x8107f70) at su_port.h:326
#5  0xb321af6c in su_root_run (self=0x8107770) at su_root.c:819
#6  0xb320af0a in su_pthread_port_clone_main (varg=0xb16fd098) at
su_pthread_port.c:324
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 12 (process 14047):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c4c676 in epoll_wait () from /lib/tls/i686/cmov/libc.so.6
#2  0xb321998d in su_epoll_port_wait_events (self=0x80fbaa8, tout=1000)
at su_epoll_port.c:495
#3  0xb3220369 in su_base_port_step (self=0x80fbaa8, tout=1000) at
su_base_port.c:467
#4  0xb321b0b5 in su_port_step (self=0x80fbaa8, tout=1000) at su_port.h:340
#5  0xb321b085 in su_root_step (self=0x80fba70, tout=1000) at su_root.c:858
#6  0xb3148442 in sofia_profile_thread_run (thread=0x81003e8,
obj=0x80ffb38) at sofia.c:831
#7  0xb7dfeeb6 in dummy_worker (opaque=0x81003e8) at
threadproc/unix/thread.c:138
#8  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 11 (process 14046):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e00a59 in apr_sleep (t=10000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xb313e306 in sofia_profile_worker_thread_run (thread=0x80f5030,
obj=0x80f4280) at sofia.c:656
#5  0xb7dfeeb6 in dummy_worker (opaque=0x80f5030) at
threadproc/unix/thread.c:138
#6  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

---Type <return> to continue, or q <return> to quit---
Thread 10 (process 14045):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c4c676 in epoll_wait () from /lib/tls/i686/cmov/libc.so.6
#2  0xb321998d in su_epoll_port_wait_events (self=0x80fd1a0, tout=1000)
at su_epoll_port.c:495
#3  0xb3220218 in su_base_port_run (self=0x80fd1a0) at su_base_port.c:349
#4  0xb321af8f in su_port_run (self=0x80fd1a0) at su_port.h:326
#5  0xb321af6c in su_root_run (self=0x80fef98) at su_root.c:819
#6  0xb320af0a in su_pthread_port_clone_main (varg=0xb30ac098) at
su_pthread_port.c:324
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 9 (process 14044):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c4c676 in epoll_wait () from /lib/tls/i686/cmov/libc.so.6
#2  0xb321998d in su_epoll_port_wait_events (self=0x80e0e80, tout=1000)
at su_epoll_port.c:495
#3  0xb3220369 in su_base_port_step (self=0x80e0e80, tout=1000) at
su_base_port.c:467
#4  0xb321b0b5 in su_port_step (self=0x80e0e80, tout=1000) at su_port.h:340
#5  0xb321b085 in su_root_step (self=0x80f8528, tout=1000) at su_root.c:858
#6  0xb3148442 in sofia_profile_thread_run (thread=0x80f4f50,
obj=0x80f4280) at sofia.c:831
#7  0xb7dfeeb6 in dummy_worker (opaque=0x80f4f50) at
threadproc/unix/thread.c:138
#8  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 8 (process 14043):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e00a59 in apr_sleep (t=500000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xb7da20a4 in switch_scheduler_task_thread (thread=0x80be590,
obj=0x0) at src/switch_scheduler.c:171
#5  0xb7dfeeb6 in dummy_worker (opaque=0x80be590) at
threadproc/unix/thread.c:138
#6  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 7 (process 14042):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0x80c4760, mutex=0x80c4730)
at locks/unix/thread_cond.c:68
#3  0xb7d7d8b4 in switch_thread_cond_wait (cond=0x80c4760,
mutex=0x80c4730) at src/switch_apr.c:359
#4  0xb7ddf4d6 in switch_cond_next () at src/switch_time.c:203
#5  0xb7d91b5b in switch_core_sql_thread (thread=0xb3782ae8, obj=0x0) at
src/switch_core_sqldb.c:220
#6  0xb7dfeeb6 in dummy_worker (opaque=0xb3782ae8) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 6 (process 14039):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0xb70ddc60,
mutex=0xb70ddc30) at locks/unix/thread_cond.c:68
#3  0xb7defcfc in apr_queue_pop (queue=0xb70ddc00, data=0xb4fe93a8) at
misc/apr_queue.c:276
#4  0xb7d7c884 in switch_queue_pop (queue=0xb70ddc00, data=0xb4fe93a8)
at src/switch_apr.c:879
#5  0xb7dd7bed in log_thread (t=0xb504bae0, obj=0x0) at src/switch_log.c:213
---Type <return> to continue, or q <return> to quit---
#6  0xb7dfeeb6 in dummy_worker (opaque=0xb504bae0) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (process 14038):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0xb7140b38,
mutex=0xb7140b08) at locks/unix/thread_cond.c:68
#3  0xb7defcfc in apr_queue_pop (queue=0xb7140ad8, data=0xb58783a8) at
misc/apr_queue.c:276
#4  0xb7d7c884 in switch_queue_pop (queue=0xb7140ad8, data=0xb58783a8)
at src/switch_apr.c:879
#5  0xb7dae2d0 in switch_event_thread (thread=0x8068228, obj=0xb7140ad8)
at src/switch_event.c:284
#6  0xb7dfeeb6 in dummy_worker (opaque=0x8068228) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (process 14037):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0xb71a3b38,
mutex=0xb71a3b08) at locks/unix/thread_cond.c:68
#3  0xb7defcfc in apr_queue_pop (queue=0xb71a3ad8, data=0xb60793a8) at
misc/apr_queue.c:276
#4  0xb7d7c884 in switch_queue_pop (queue=0xb71a3ad8, data=0xb60793a8)
at src/switch_apr.c:879
#5  0xb7dae2d0 in switch_event_thread (thread=0x8068208, obj=0xb71a3ad8)
at src/switch_event.c:284
#6  0xb7dfeeb6 in dummy_worker (opaque=0x8068208) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (process 14036):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0x805e548, mutex=0x805e518)
at locks/unix/thread_cond.c:68
#3  0xb7defcfc in apr_queue_pop (queue=0x805e4e8, data=0xb687a3a8) at
misc/apr_queue.c:276
#4  0xb7d7c884 in switch_queue_pop (queue=0x805e4e8, data=0xb687a3a8) at
src/switch_apr.c:879
#5  0xb7dae2d0 in switch_event_thread (thread=0x80681e8, obj=0x805e4e8)
at src/switch_event.c:284
#6  0xb7dfeeb6 in dummy_worker (opaque=0x80681e8) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (process 14035):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7cfdaa5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7df8f6a in apr_thread_cond_wait (cond=0xb70ddb38,
mutex=0xb70ddb08) at locks/unix/thread_cond.c:68
#3  0xb7defcfc in apr_queue_pop (queue=0xb70ddad8, data=0xb707b3a8) at
misc/apr_queue.c:276
#4  0xb7d7c884 in switch_queue_pop (queue=0xb70ddad8, data=0xb707b3a8)
at src/switch_apr.c:879
#5  0xb7daf069 in switch_event_dispatch_thread (thread=0x80681c8,
obj=0xb70ddad8) at src/switch_event.c:241
#6  0xb7dfeeb6 in dummy_worker (opaque=0x80681c8) at
threadproc/unix/thread.c:138
#7  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (process 14034):
#0  0xb7ee6410 in __kernel_vsyscall ()
#1  0xb7c44881 in select () from /lib/tls/i686/cmov/libc.so.6
---Type <return> to continue, or q <return> to quit---
#2  0xb7e00a59 in apr_sleep (t=100000) at time/unix/time.c:246
#3  0xb7ddf09e in do_sleep (t=4294966782) at src/switch_time.c:109
#4  0xb7d8d52b in pool_thread (thread=0xb79d6da8, obj=0x0) at
src/switch_core_memory.c:423
#5  0xb7dfeeb6 in dummy_worker (opaque=0xb79d6da8) at
threadproc/unix/thread.c:138
#6  0xb7cf94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7c4be5e in clone () from /lib/tls/i686/cmov/libc.so.6

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