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[gpsd-dev] ntpd/gpsd tangle


From: Hal Murray
Subject: [gpsd-dev] ntpd/gpsd tangle
Date: Mon, 26 Jan 2015 21:50:08 -0800

Sorry.  I forgot the interesting info.  (I don't use gdb very often.)

I'll leave that window around in case you want me to type something.

I expect you can setup your own test case without a lot of trouble.  Just 
restart ntpd a few times.

Program received signal SIGPIPE, Broken pipe.
[Switching to Thread 0x7ffff6743700 (LWP 10759)]
0x00007ffff72436af in __libc_send (fd=8, buf=0x7ffff6740ca0, n=117, flags=0)
    at ../sysdeps/unix/sysv/linux/x86_64/send.c:31
31        ssize_t result = INLINE_SYSCALL (sendto, 6, fd, buf, n, flags, NULL,
(gdb) bt
#0  0x00007ffff72436af in __libc_send (fd=8, buf=0x7ffff6740ca0, n=117, 
    flags=0) at ../sysdeps/unix/sysv/linux/x86_64/send.c:31
#1  0x000000000040622b in throttled_write ()
#2  0x00000000004064eb in notify_watchers ()
#3  0x0000000000406535 in ship_pps_drift_message ()
#4  0x00007ffff798d603 in gpsd_ppsmonitor ()
   from /home/murray/gpsd/work/libgpsd.so.22
#5  0x00007ffff723b52a in start_thread (arg=0x7ffff6743700)
    at pthread_create.c:310
#6  0x00007ffff6f7779d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
(gdb) 


Thread 3 (Thread 0x7ffff5f42700 (LWP 10762)):
#0  0x00007ffff6f6d977 in ioctl () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff798cde3 in gpsd_ppsmonitor ()
   from /home/murray/gpsd/work/libgpsd.so.22
#2  0x00007ffff723b52a in start_thread (arg=0x7ffff5f42700)
    at pthread_create.c:310
#3  0x00007ffff6f7779d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ffff6743700 (LWP 10759)):
#0  0x00007ffff72436af in __libc_send (fd=8, buf=0x7ffff6740ca0, n=117, 
    flags=0) at ../sysdeps/unix/sysv/linux/x86_64/send.c:31
#1  0x000000000040622b in throttled_write ()
#2  0x00000000004064eb in notify_watchers ()
#3  0x0000000000406535 in ship_pps_drift_message ()
#4  0x00007ffff798d603 in gpsd_ppsmonitor ()
   from /home/murray/gpsd/work/libgpsd.so.22
#5  0x00007ffff723b52a in start_thread (arg=0x7ffff6743700)
    at pthread_create.c:310
#6  0x00007ffff6f7779d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ffff7feb740 (LWP 10757)):
#0  0x00007ffff6f3b91d in nanosleep () at ../sysdeps/unix/syscall-template.S:8
1
#1  0x00007ffff6f6e794 in usleep (useconds=<optimized out>)
    at ../sysdeps/unix/sysv/linux/usleep.c:32
#2  0x000000000040606a in detach_client ()
#3  0x00000000004040a9 in main ()


-- 
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