Http.c write_request_thread disappeared ?

I attached to a stuck smsbox, and it appears the write_request_thread not
running,
Yet pending_requests has a len of 99.
client_threads_are_running = 1

So hmm, something happened....

Anyway why wouldn't you write 

static void write_request_thread(void *arg)
{
   client_threads_are_running = 1;

   ......


   client_threads_are_running = 0;
}

This would ensure if the thread exits hopefully normally,
It automatically resets client_threads_are_running
?
Instead we have it currently written done in start_client_threads(void)

This doesn't occur often, and was lucky to be able to attach debugger to it

Anyway, thoughts ?
 

========
When attached, heres what I got
Thread 10 (Thread -1223447632 (LWP 18286)):
#0  0xb72a1f3d in poll () from /lib/tls/libc.so.6
#1  0x080a4207 in gwthread_poll (fds=0x833f000, numfds=0, timeout=60) at
gwlib/gwthread-pthread.c:737
#2  0x080a29bf in poller (arg=0x8313500) at gwlib/fdset.c:331
#3  0x080a37a3 in new_thread (arg=0x83148a8) at gwlib/gwthread-pthread.c:362
#4  0xb7536dfc in start_thread () from /lib/tls/libpthread.so.0
#5  0xb72aaf2a in clone () from /lib/tls/libc.so.6

Thread 9 (Thread -1233937488 (LWP 18287)):
#0  0xb72a1f3d in poll () from /lib/tls/libc.so.6
#1  0x080a4207 in gwthread_poll (fds=0xb6739960, numfds=1, timeout=-1) at
gwlib/gwthread-pthread.c:737
#2  0x080a8187 in server_thread (dummy=0x0) at gwlib/http.c:2205
#3  0x080a37a3 in new_thread (arg=0x8314808) at gwlib/gwthread-pthread.c:362
#4  0xb7536dfc in start_thread () from /lib/tls/libpthread.so.0
#5  0xb72aaf2a in clone () from /lib/tls/libc.so.6

Thread 8 (Thread -1244427344 (LWP 18288)):
#0  0xb753920b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/libpthread.so.0
#1  0x080ab040 in gwlist_consume (list=0x82f5808) at gwlib/list.c:421
#2  0x080a7de8 in port_get_request (port=14063) at gwlib/http.c:2003
#3  0x080a883f in http_accept_request (port=14063, client_ip=0x2273,
url=0xfffffffc, headers=0xfffffffc, body=0xb5d38a64, 
    cgivars=0x2273) at gwlib/http.c:2402
#4  0x0808022f in sendsms_thread (arg=0x0) at gw/smsbox.c:3386
#5  0x080a37a3 in new_thread (arg=0x832f970) at gwlib/gwthread-pthread.c:362
#6  0xb7536dfc in start_thread () from /lib/tls/libpthread.so.0
#7  0xb72aaf2a in clone () from /lib/tls/libc.so.6

Thread 7 (Thread -1254917200 (LWP 18289)):
---Type <return> to continue, or q <return> to quit---
#0  0xb753920b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/libpthread.so.0
#1  0x080ab040 in gwlist_consume (list=0x833e090) at gwlib/list.c:421
#2  0x0807c596 in obey_request_thread (arg=0x0) at gw/smsbox.c:1740
#3  0x080a37a3 in new_thread (arg=0x8336820) at gwlib/gwthread-pthread.c:362
#4  0xb7536dfc in start_thread () from /lib/tls/libpthread.so.0
#5  0xb72aaf2a in clone () from /lib/tls/libc.so.6

Thread 6 (Thread -1265407056 (LWP 18290)):
#0  0xb753920b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/libpthread.so.0
#1  0x080ab040 in gwlist_consume (list=0x833e040) at gwlib/list.c:421
#2  0x080a75e9 in http_receive_result_real (caller=0xfffffffc,
status=0xfffffffc, final_url=0xb4936a60, headers=0xb4936a64, 
    body=0xb4936a68, blocking=1) at gwlib/http.c:1669
#3  0x0807ae46 in url_result_thread (arg=0x0) at gw/smsbox.c:1247
#4  0x080a37a3 in new_thread (arg=0x8337060) at gwlib/gwthread-pthread.c:362
#5  0xb7536dfc in start_thread () from /lib/tls/libpthread.so.0
#6  0xb72aaf2a in clone () from /lib/tls/libc.so.6

Thread 5 (Thread -1275896912 (LWP 18291)):
#0  0xb753920b in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/libpthread.so.0
#1  0x080ab040 in gwlist_consume (list=0x833e108) at gwlib/list.c:421
#2  0x0807ac92 in http_queue_thread (arg=0x0) at gw/smsbox.c:1166
#3  0x080a37a3 in new_thread (arg=0x8337818) at gwlib/gwthread-pthread.c:362
#4  0xb7536dfc in start_thread () from /lib/tls/libpthread.so.0
#5  0xb72aaf2a in clone () from /lib/tls/libc.so.6

Thread 4 (Thread -1286386768 (LWP 18292)):
#0  0xb72a1f3d in poll () from /lib/tls/libc.so.6
#1  0x080a42df in gwthread_sleep (seconds=30) at gwlib/gwthread-pthread.c:771
#2  0x08081916 in heartbeat_thread (arg=0x833e3b8) at gw/heartbeat.c:109
---Type <return> to continue, or q <return> to quit---
#3  0x080a37a3 in new_thread (arg=0x833e3d8) at gwlib/gwthread-pthread.c:362
#4  0xb7536dfc in start_thread () from /lib/tls/libpthread.so.0
#5  0xb72aaf2a in clone () from /lib/tls/libc.so.6

Thread 3 (Thread -1296876624 (LWP 18301)):
#0  0xb753b6f1 in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
#1  0xb75387a7 in _L_mutex_lock_28 () from /lib/tls/libpthread.so.0
#2  0x08340210 in ?? ()
#3  0x0812e344 in __func__.9 ()
#4  0xb2b33a18 in ?? ()
#5  0x080b520f in mutex_lock_real (mutex=0x477d, file=0x83446a0 "\034",
line=202, func=0xb7240e0b "\201Ã\215*\f")
    at gwlib/thread.c:135
Previous frame identical to this frame (corrupt stack?)
#0  0xb72a1f3d in poll () from /lib/tls/libc.so.6
(gdb)