Re: [ntp:questions] nmea patch
In article 6zydnasrfpna1dbunz2dnuvz_qrin...@megapath.net hal-use...@ip-64-139-1-69.sjc.megapath.net (Hal Murray) writes: In article ywn94p108yb7@ntp1.isc.org, Harlan Stenn st...@ntp.org writes: I'm glad it is working for you and I'd be even happier if we could figure out why the NULL string got where it did earlier, as ntpd should never drop core like that. It might be just a simple bug. The code in that area says: if ((len = readlink(device,buffer,sizeof(buffer))) == -1) return(0); buffer[len] = 0; if ((nmea_host = strtok(buffer,:)) == NULL) return(0); nmea_port = atoi(strtok(NULL,:)); The idea is that if you are using the nmead, then /dev/gps0 will be a synbilic link to someting like server:port so nmea_host will be the server and nmea_port will be the port number. And if it isn't, but rather a link to (say) /dev/ttyS0, nmea_host will get the whole /dev/ttyS0 (the first colon-separated token), the second strtok() will return NULL since there are no more tokens, and atoi(NULL) shouldn't be expected to do anything more meaningful than crash. Better code would be char *p; ... if ((p = strtok(NULL,:)) == NULL) return 0; nmea_port = atoi(p); --Per Hedeland p...@hedeland.org ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
On Dec 17, 11:03 pm, David Woolley da...@ex.djwhome.demon.co.uk.invalid wrote: Hal Murray wrote: In article 0ea640c4-6e30-457a-8b80-6274ea367...@k36g2000pri.googlegroups.com, dhavey dha...@gmail.com writes: and it segfaults. Any clues? Does /dev/gps0 exist? Often, it's a symlink to whatever your OS uses for /dev/tty stuff. What is that OS and what does the debugger say was the location of the crash when you run an unstripped version? Can you reproduce with an unoptimised full debug build? /dev/gps0 - /dev/pps0 exists. dmesg says: ntpd[11347]: segfault at 0 ip 003361a341ca sp 7fff3b8ca680 error 4 in libc-2.5.so[3361a0+14a000] Where is the ntp log? What full debug? Okay chill, I'm going to read the README ;) ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
On Dec 17, 11:03 pm, David Woolley da...@ex.djwhome.demon.co.uk.invalid wrote: Hal Murray wrote: In article 0ea640c4-6e30-457a-8b80-6274ea367...@k36g2000pri.googlegroups.com, dhavey dha...@gmail.com writes: and it segfaults. Any clues? Does /dev/gps0 exist? Often, it's a symlink to whatever your OS uses for /dev/tty stuff. What is that OS and what does the debugger say was the location of the crash when you run an unstripped version? Can you reproduce with an unoptimised full debug build? I think this is what you meant: /usr/local/bin/ntpd -d -l /var/log/ntpd.log -c /etc/ntp.gps ntpd 4.2@1.1541-o Thu Dec 18 21:21:02 UTC 2008 (2) addto_syslog: logging to file /var/log/ntpd.log addto_syslog: logging to file /var/log/ntpd.log addto_syslog: precision = 1.000 usec addto_syslog: ntp_io: estimated max descriptors: 1024, initial socket boundary: 16 addto_syslog: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled addto_syslog: Listening on interface #1 wildcard, ::#123 Disabled addto_syslog: Listening on interface #2 lo, ::1#123 Enabled addto_syslog: Listening on interface #3 eth0, fe80::21d: 9ff:fe18:815#123 Enabled addto_syslog: Listening on interface #4 lo, 127.0.0.1#123 Enabled addto_syslog: Listening on interface #5 eth0, 192.168.0.29#123 Enabled local_clock: time 0 offset 0.00 freq 0.000 state 0 addto_syslog: kernel time sync status 0040 addto_syslog: configure: keyword ning unknown, line ignored peer_crypto_clear: at 0 next 0 assoc ID 5670 key_expire: at 0 peer_clear: at 0 next 1 assoc ID 5670 refid INIT newpeer: 192.168.0.29-192.168.0.26 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key peer_crypto_clear: at 0 next 0 assoc ID 5671 key_expire: at 0 peer_clear: at 0 next 2 assoc ID 5671 refid INIT newpeer: 192.168.0.29-192.168.0.27 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key peer_crypto_clear: at 0 next 0 assoc ID 5672 key_expire: at 0 peer_clear: at 0 next 3 assoc ID 5672 refid INIT newpeer: 192.168.0.29-192.168.0.28 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key peer_crypto_clear: at 0 next 0 assoc ID 5673 key_expire: at 0 peer_clear: at 0 next 4 assoc ID 5673 refid INIT addto_syslog: refclock_setup fd 6 tcgetattr: Inappropriate ioctl for device Segmentation fault ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
On Dec 17, 11:03 pm, David Woolley da...@ex.djwhome.demon.co.uk.invalid wrote: Hal Murray wrote: In article 0ea640c4-6e30-457a-8b80-6274ea367...@k36g2000pri.googlegroups.com, dhavey dha...@gmail.com writes: and it segfaults. Any clues? Does /dev/gps0 exist? Often, it's a symlink to whatever your OS uses for /dev/tty stuff. What is that OS and what does the debugger say was the location of the crash when you run an unstripped version? Can you reproduce with an unoptimised full debug build? It's centos with kernel version 2.6.27.3 ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
On Dec 18, 11:47 am, dhavey dha...@gmail.com wrote: On Dec 17, 11:03 pm, David Woolley da...@ex.djwhome.demon.co.uk.invalid wrote: Hal Murray wrote: In article 0ea640c4-6e30-457a-8b80-6274ea367...@k36g2000pri.googlegroups.com, dhavey dha...@gmail.com writes: and it segfaults. Any clues? Does /dev/gps0 exist? Often, it's a symlink to whatever your OS uses for /dev/tty stuff. What is that OS and what does the debugger say was the location of the crash when you run an unstripped version? Can you reproduce with an unoptimised full debug build? /dev/gps0 - /dev/pps0 exists. dmesg says: ntpd[11347]: segfault at 0 ip 003361a341ca sp 7fff3b8ca680 error 4 in libc-2.5.so[3361a0+14a000] Where is the ntp log? What full debug? Okay chill, I'm going to read the README ;) ntp.log 18 Dec 13:11:16 ntpd[11838]: logging to file /var/log/ntpd.log 18 Dec 13:11:16 ntpd[11838]: precision = 1.000 usec 18 Dec 13:11:16 ntpd[11838]: ntp_io: estimated max descriptors: 1024, initial socket boundary: 16 18 Dec 13:11:16 ntpd[11838]: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled 18 Dec 13:11:16 ntpd[11838]: Listening on interface #1 wildcard, ::#123 Disabled 18 Dec 13:11:16 ntpd[11838]: Listening on interface #2 lo, ::1#123 Enabled 18 Dec 13:11:16 ntpd[11838]: Listening on interface #3 eth0, fe80::21d: 9ff:fe18:815#123 Enabled 18 Dec 13:11:16 ntpd[11838]: Listening on interface #4 lo, 127.0.0.1#123 Enabled 18 Dec 13:11:16 ntpd[11838]: Listening on interface #5 eth0, 192.168.0.29#123 Enabled 18 Dec 13:11:16 ntpd[11838]: kernel time sync status 0040 18 Dec 13:11:16 ntpd[11838]: configure: keyword ning unknown, line ignored 18 Dec 13:11:16 ntpd[11838]: refclock_setup fd 6 tcgetattr: Inappropriate ioctl for device gdb looks like this: (gdb) run -l /var/log/ntpd.log -c /etc/ntp.gps Starting program: /usr/local/bin/ntpd -l /var/log/ntpd.log -c /etc/ ntp.gps [Detaching after fork from child process 11958. (Try `set detach-on- fork off'.)] Program exited normally. (gdb) I took the -o2 flag out of the Makefile. I don't know what you mean by an unstripped version. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
Okay here it is ;)
What does all of that mean?
I'll try to get it out of daemon mode and then post the output from
gdb ;)
[r...@user4 ntp-4.2.4p5]# /usr/local/bin/ntpd -d -d -d -d -d -d -d -d -
d -d -l /var/log/ntpd.log -c /etc/ntp.gps
ntpd 4.2@1.1541-o Thu Dec 18 21:21:02 UTC 2008 (2)
addto_syslog: logging to file /var/log/ntpd.log
addto_syslog: logging to file /var/log/ntpd.log
adding new filegen
adding new filegen
adding new filegen
adding new filegen
adding new filegen
adding new filegen
addto_syslog: set_process_priority: Leave priority alone:
priority_done is 2
addto_syslog: precision = 1.000 usec
create_sockets(123)
addto_syslog: ntp_io: estimated max descriptors: 1024, initial socket
boundary: 16
setsockopt SO_TIMESTAMP enabled on fd 16 address 0.0.0.0
bind() fd 16, family 2, port 123, addr 0.0.0.0, flags=0x89
flags for fd 16: 0x802
Searching for addr 0.0.0.0 in list of addresses - NOT FOUND
Added addr 0.0.0.0 to list of addresses
addto_syslog: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled
setsockopt SO_TIMESTAMP enabled on fd 17 address ::
bind() fd 17, family 10, port 123, addr ::, flags=0x81
flags for fd 17: 0x802
Searching for addr :: in list of addresses - NOT FOUND
Added addr :: to list of addresses
addto_syslog: Listening on interface #1 wildcard, ::#123 Disabled
update_interfaces(123)
address_okay: listen Virtual: 1, IF name: lo
address_okay: loopback - OK
examining interface #0: fd=-1, bfd=-1, name=lo, flags=0x5, scope=1,
ifindex=0, sin=::1, Enabled:
Dumping interface: 0x7fffe48d6bb0
fd = -1
bfd = -1
sin = ::1,
0a7b 0001 0100
bcast = 0.0.0.0,
mask = :::::::,
0a7b
name = lo
flags = 0x0005
last_ttl = 0
addr_refid =
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 1
peercnt = 0
phase = 1
Searching for addr ::1 in list of addresses - NOT FOUND
create_interface(::1#123)
set SO_REUSEADDR to ON on ::
set SO_REUSEADDR to OFF on ::
setsockopt SO_TIMESTAMP enabled on fd 18 address ::1
bind() fd 18, family 10, port 123, addr ::1, flags=0x5
flags for fd 18: 0x802
addto_syslog: Listening on interface #2 lo, ::1#123 Enabled
Searching for addr ::1 in list of addresses - NOT FOUND
Added addr ::1 to list of addresses
created interface #2: fd=18, bfd=-1, name=lo, flags=0x5, scope=1,
ifindex=0, sin=::1, Enabled:
Dumping interface: 0x65ac70
fd = 18
bfd = -1
sin = ::1,
0a7b 0001 0100
bcast = 0.0.0.0,
mask = :::::::,
0a7b
name = lo
flags = 0x0005
last_ttl = 0
addr_refid = c84d40cf
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 1
peercnt = 0
phase = 1
updating interface #2: fd=18, bfd=-1, name=lo, flags=0x5, scope=1,
ifindex=0, sin=::1, Enabled: new - created
Dumping interface: 0x65ac70
fd = 18
bfd = -1
sin = ::1,
0a7b 0001 0100
bcast = 0.0.0.0,
mask = :::::::,
0a7b
name = lo
flags = 0x0005
last_ttl = 0
addr_refid = c84d40cf
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 1
peercnt = 0
phase = 1
address_okay: listen Virtual: 1, IF name: eth0
address_okay: OK
examining interface #0: fd=-1, bfd=-1, name=eth0, flags=0x11, scope=2,
ifindex=0, sin=fe80::21d:9ff:fe18:815, Enabled:
Dumping interface: 0x7fffe48d6bb0
fd = -1
bfd = -1
sin = fe80::21d:9ff:fe18:815,
0a7b fe80 021d09ff fe180815 0200
bcast = 0.0.0.0,
mask = :::::,
0a7b
name = eth0
flags = 0x0011
last_ttl = 0
addr_refid =
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 2
peercnt = 0
phase = 1
Searching for addr fe80::21d:9ff:fe18:815 in list of addresses - NOT
FOUND
create_interface(fe80::21d:9ff:fe18:815#123)
set SO_REUSEADDR to ON on ::
set SO_REUSEADDR to OFF on ::
setsockopt SO_TIMESTAMP enabled on fd 19 address fe80::21d:
9ff:fe18:815
bind() fd 19, family 10, port 123, addr fe80::21d:9ff:fe18:815,
flags=0x11
flags for fd 19: 0x802
addto_syslog: Listening on interface #3 eth0, fe80::21d:
9ff:fe18:815#123 Enabled
Searching for addr fe80::21d:9ff:fe18:815 in list of addresses - NOT
FOUND
Added addr fe80::21d:9ff:fe18:815 to list of addresses
created interface #3: fd=19, bfd=-1, name=eth0, flags=0x11, scope=2,
ifindex=0, sin=fe80::21d:9ff:fe18:815,
Re: [ntp:questions] nmea patch
dhavey wrote: What full debug? Depends on your development toolset, but for gcc, it means including the -g flag and not doing anything that would strip the binary. For gcc, unoptimised means something like -O0 ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
On Dec 18, 1:49 pm, David Woolley da...@ex.djwhome.demon.co.uk.invalid wrote: dhavey wrote: What full debug? Depends on your development toolset, but for gcc, it means including the -g flag and not doing anything that would strip the binary. For gcc, unoptimised means something like -O0 Like that? (gdb) run -l /var/log/ntpd.log -d -c /etc/ntp.gps Starting program: /usr/local/bin/ntpd -l /var/log/ntpd.log -d -c /etc/ ntp.gps ntpd 4.2@1.1541-o Thu Dec 18 21:21:02 UTC 2008 (2) addto_syslog: logging to file /var/log/ntpd.log addto_syslog: logging to file /var/log/ntpd.log addto_syslog: precision = 1.000 usec addto_syslog: ntp_io: estimated max descriptors: 1024, initial socket boundary: 16 addto_syslog: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled addto_syslog: Listening on interface #1 wildcard, ::#123 Disabled addto_syslog: Listening on interface #2 lo, ::1#123 Enabled addto_syslog: Listening on interface #3 eth0, fe80::21d: 9ff:fe18:815#123 Enabled addto_syslog: Listening on interface #4 lo, 127.0.0.1#123 Enabled addto_syslog: Listening on interface #5 eth0, 192.168.0.29#123 Enabled local_clock: time 0 offset 0.00 freq 0.000 state 0 addto_syslog: kernel time sync status 0040 addto_syslog: configure: keyword ning unknown, line ignored peer_crypto_clear: at 0 next 0 assoc ID 59506 key_expire: at 0 peer_clear: at 0 next 1 assoc ID 59506 refid INIT newpeer: 192.168.0.29-192.168.0.26 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key peer_crypto_clear: at 0 next 0 assoc ID 59507 key_expire: at 0 peer_clear: at 0 next 2 assoc ID 59507 refid INIT newpeer: 192.168.0.29-192.168.0.27 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key peer_crypto_clear: at 0 next 0 assoc ID 59508 key_expire: at 0 peer_clear: at 0 next 3 assoc ID 59508 refid INIT newpeer: 192.168.0.29-192.168.0.28 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key Breakpoint 1, 0x003361a341ca in strtoll_l_internal () from / lib64/libc.so.6 (gdb) backtrace #0 0x003361a341ca in strtoll_l_internal () from /lib64/ libc.so.6 #1 0x00407c79 in getconfig (argc=value optimized out, argv=0x4) at /usr/include/stdlib.h:336 #2 0x0040c90b in ntpdmain (argc=0, argv=value optimized out) at ntpd.c:846 #3 0x003361a1d8b4 in __libc_start_main () from /lib64/libc.so.6 #4 0x00404a79 in _start () (gdb) ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
On Dec 18, 1:49 pm, David Woolley da...@ex.djwhome.demon.co.uk.invalid wrote: dhavey wrote: What full debug? Depends on your development toolset, but for gcc, it means including the -g flag and not doing anything that would strip the binary. For gcc, unoptimised means something like -O0 Like that? (gdb) run -l /var/log/ntpd.log -d -c /etc/ntp.gps Starting program: /usr/local/bin/ntpd -l /var/log/ntpd.log -d -c /etc/ ntp.gps ntpd 4.2@1.1541-o Thu Dec 18 21:21:02 UTC 2008 (2) addto_syslog: logging to file /var/log/ntpd.log addto_syslog: logging to file /var/log/ntpd.log addto_syslog: precision = 1.000 usec addto_syslog: ntp_io: estimated max descriptors: 1024, initial socket boundary: 16 addto_syslog: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled addto_syslog: Listening on interface #1 wildcard, ::#123 Disabled addto_syslog: Listening on interface #2 lo, ::1#123 Enabled addto_syslog: Listening on interface #3 eth0, fe80::21d: 9ff:fe18:815#123 Enabled addto_syslog: Listening on interface #4 lo, 127.0.0.1#123 Enabled addto_syslog: Listening on interface #5 eth0, 192.168.0.29#123 Enabled local_clock: time 0 offset 0.00 freq 0.000 state 0 addto_syslog: kernel time sync status 0040 addto_syslog: configure: keyword ning unknown, line ignored peer_crypto_clear: at 0 next 0 assoc ID 59506 key_expire: at 0 peer_clear: at 0 next 1 assoc ID 59506 refid INIT newpeer: 192.168.0.29-192.168.0.26 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key peer_crypto_clear: at 0 next 0 assoc ID 59507 key_expire: at 0 peer_clear: at 0 next 2 assoc ID 59507 refid INIT newpeer: 192.168.0.29-192.168.0.27 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key peer_crypto_clear: at 0 next 0 assoc ID 59508 key_expire: at 0 peer_clear: at 0 next 3 assoc ID 59508 refid INIT newpeer: 192.168.0.29-192.168.0.28 mode 1 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key Breakpoint 1, 0x003361a341ca in strtoll_l_internal () from / lib64/libc.so.6 (gdb) backtrace #0 0x003361a341ca in strtoll_l_internal () from /lib64/ libc.so.6 #1 0x00407c79 in getconfig (argc=value optimized out, argv=0x4) at /usr/include/stdlib.h:336 #2 0x0040c90b in ntpdmain (argc=0, argv=value optimized out) at ntpd.c:846 #3 0x003361a1d8b4 in __libc_start_main () from /lib64/libc.so.6 #4 0x00404a79 in _start () (gdb) ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
dhavey wrote: gdb looks like this: (gdb) run -l /var/log/ntpd.log -c /etc/ntp.gps Starting program: /usr/local/bin/ntpd -l /var/log/ntpd.log -c /etc/ ntp.gps [Detaching after fork from child process 11958. (Try `set detach-on- fork off'.)] Program exited normally. (gdb) You've run gdb on the daemon starter process. What I intended was that you ran gdb ntpd core. on the crash dump (you may need to use ulimit -c unlimited, to ensure you get a dump). I took the -o2 flag out of the Makefile. I don't know what you mean by an unstripped version. Do not run strip when installing it. Do not run install with the -s option when installing it, or run the debugger against a version before these were run. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
Okay here it is ;)
What does all of that mean?
I'll try to get it out of daemon mode and then post the output from
gdb ;)
[r...@user4 ntp-4.2.4p5]# /usr/local/bin/ntpd -d -d -d -d -d -d -d -d -
d -d -l /var/log/ntpd.log -c /etc/ntp.gps
ntpd 4.2@1.1541-o Thu Dec 18 21:21:02 UTC 2008 (2)
addto_syslog: logging to file /var/log/ntpd.log
addto_syslog: logging to file /var/log/ntpd.log
adding new filegen
adding new filegen
adding new filegen
adding new filegen
adding new filegen
adding new filegen
addto_syslog: set_process_priority: Leave priority alone:
priority_done is 2
addto_syslog: precision = 1.000 usec
create_sockets(123)
addto_syslog: ntp_io: estimated max descriptors: 1024, initial socket
boundary: 16
setsockopt SO_TIMESTAMP enabled on fd 16 address 0.0.0.0
bind() fd 16, family 2, port 123, addr 0.0.0.0, flags=0x89
flags for fd 16: 0x802
Searching for addr 0.0.0.0 in list of addresses - NOT FOUND
Added addr 0.0.0.0 to list of addresses
addto_syslog: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled
setsockopt SO_TIMESTAMP enabled on fd 17 address ::
bind() fd 17, family 10, port 123, addr ::, flags=0x81
flags for fd 17: 0x802
Searching for addr :: in list of addresses - NOT FOUND
Added addr :: to list of addresses
addto_syslog: Listening on interface #1 wildcard, ::#123 Disabled
update_interfaces(123)
address_okay: listen Virtual: 1, IF name: lo
address_okay: loopback - OK
examining interface #0: fd=-1, bfd=-1, name=lo, flags=0x5, scope=1,
ifindex=0, sin=::1, Enabled:
Dumping interface: 0x7fffe48d6bb0
fd = -1
bfd = -1
sin = ::1,
0a7b 0001 0100
bcast = 0.0.0.0,
mask = :::::::,
0a7b
name = lo
flags = 0x0005
last_ttl = 0
addr_refid =
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 1
peercnt = 0
phase = 1
Searching for addr ::1 in list of addresses - NOT FOUND
create_interface(::1#123)
set SO_REUSEADDR to ON on ::
set SO_REUSEADDR to OFF on ::
setsockopt SO_TIMESTAMP enabled on fd 18 address ::1
bind() fd 18, family 10, port 123, addr ::1, flags=0x5
flags for fd 18: 0x802
addto_syslog: Listening on interface #2 lo, ::1#123 Enabled
Searching for addr ::1 in list of addresses - NOT FOUND
Added addr ::1 to list of addresses
created interface #2: fd=18, bfd=-1, name=lo, flags=0x5, scope=1,
ifindex=0, sin=::1, Enabled:
Dumping interface: 0x65ac70
fd = 18
bfd = -1
sin = ::1,
0a7b 0001 0100
bcast = 0.0.0.0,
mask = :::::::,
0a7b
name = lo
flags = 0x0005
last_ttl = 0
addr_refid = c84d40cf
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 1
peercnt = 0
phase = 1
updating interface #2: fd=18, bfd=-1, name=lo, flags=0x5, scope=1,
ifindex=0, sin=::1, Enabled: new - created
Dumping interface: 0x65ac70
fd = 18
bfd = -1
sin = ::1,
0a7b 0001 0100
bcast = 0.0.0.0,
mask = :::::::,
0a7b
name = lo
flags = 0x0005
last_ttl = 0
addr_refid = c84d40cf
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 1
peercnt = 0
phase = 1
address_okay: listen Virtual: 1, IF name: eth0
address_okay: OK
examining interface #0: fd=-1, bfd=-1, name=eth0, flags=0x11, scope=2,
ifindex=0, sin=fe80::21d:9ff:fe18:815, Enabled:
Dumping interface: 0x7fffe48d6bb0
fd = -1
bfd = -1
sin = fe80::21d:9ff:fe18:815,
0a7b fe80 021d09ff fe180815 0200
bcast = 0.0.0.0,
mask = :::::,
0a7b
name = eth0
flags = 0x0011
last_ttl = 0
addr_refid =
num_mcast = 0
received = 0
sent = 0
notsent = 0
ifindex = 0
scopeid = 2
peercnt = 0
phase = 1
Searching for addr fe80::21d:9ff:fe18:815 in list of addresses - NOT
FOUND
create_interface(fe80::21d:9ff:fe18:815#123)
set SO_REUSEADDR to ON on ::
set SO_REUSEADDR to OFF on ::
setsockopt SO_TIMESTAMP enabled on fd 19 address fe80::21d:
9ff:fe18:815
bind() fd 19, family 10, port 123, addr fe80::21d:9ff:fe18:815,
flags=0x11
flags for fd 19: 0x802
addto_syslog: Listening on interface #3 eth0, fe80::21d:
9ff:fe18:815#123 Enabled
Searching for addr fe80::21d:9ff:fe18:815 in list of addresses - NOT
FOUND
Added addr fe80::21d:9ff:fe18:815 to list of addresses
created interface #3: fd=19, bfd=-1, name=eth0, flags=0x11, scope=2,
ifindex=0, sin=fe80::21d:9ff:fe18:815,
Re: [ntp:questions] nmea patch
I ran the code in gdb and this is the stack trace. At refclock_nmea.c: 178 this code causes the crash nmea_port = atoi(strtok(NULL,:)); I am not really sure of why strtok is used on a NULL string. I assume strtok return a NULL based on the trace, and then atoi calls strtool which leads to a crash. Possibly, this is a libc64 bug, as I would expect atoi to detect a null string and not to crash. #0 0x003361a341ca in strtoll_l_internal () from /lib64/ libc.so.6 #1 0x003361a31ab2 in atoi () from /lib64/libc.so.6 #2 0x00443515 in nmea_start (unit=0, peer=0x69cb58) at refclock_nmea.c:178 #3 0x0042bb9c in refclock_newpeer (peer=0x69cb58) at ntp_refclock.c:276 #4 0x00422fab in newpeer (srcadr=0x7fff552f88a0, dstadr=0x6ef0b0, hmode=3, version=4, minpoll=4, maxpoll=10, flags=129, cast_flags=1 '\001', ttl=0, key=0) at ntp_peer.c:837 #5 0x004222ea in peer_config (srcadr=0x7fff552f88a0, dstadr=0x6ef0b0, hmode=3, version=4, minpoll=4, maxpoll=10, flags=128, ttl=0, key=0, keystr=0x4776c1 *) at ntp_peer.c:525 #6 0x0040619a in getconfig (argc=0, argv=0x7fff552f8bd8) at ntp_config.c:864 #7 0x0040f5a6 in ntpdmain (argc=0, argv=0x7fff552f8bd8) at ntpd.c:846 #8 0x0040f0ec in main (argc=4, argv=0x7fff552f8bb8) at ntpd.c: 317 (gdb) up #1 0x003361a31ab2 in atoi () from /lib64/libc.so.6 (gdb) up #2 0x00443515 in nmea_start (unit=0, peer=0x69cb58) at refclock_nmea.c:178 178 nmea_port = atoi(strtok(NULL,:)); ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
In article 0273857b-9ab1-4aaf-9529-c9b7eb932...@w39g2000prb.googlegroups.com, dhavey dha...@gmail.com writes: I ran the code in gdb and this is the stack trace. At refclock_nmea.c: 178 this code causes the crash nmea_port = atoi(strtok(NULL,:)); I am not really sure of why strtok is used on a NULL string. I assume strtok return a NULL based on the trace, and then atoi calls strtool which leads to a crash. Possibly, this is a libc64 bug, as I would expect atoi to detect a null string and not to crash. You are off in the pile of code that's trying to get NMEA info over the net from a deamon. That happend when it can't open /dev/gps0. -- These are my opinions, not necessarily my employer's. I hate spam. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
On Dec 18, 3:27 pm, hal-use...@ip-64-139-1-69.sjc.megapath.net (Hal Murray) wrote: /dev/gps0 - /dev/pps0 exists. That looks fishy. I'd expect something like: /dev/gps0 - /dev/ttyS0 and /dev/pps0 - /dev/ttyS0 -- These are my opinions, not necessarily my employer's. I hate spam. That was it! Your a freakin genuis! Tell your boss I said that you deserve a raise! ntpq -p remote refid st t when poll reach delay offset jitter == 192.168.0.26.INIT. 16 u 13 6400.000 0.000 0.000 192.168.0.27.INIT. 16 u- 6400.000 0.000 0.000 192.168.0.28192.168.0.2 3 u 11 6411.185 -1490.8 0.001 GPS_NMEA(0) .GPS.0 l- 1600.000 0.000 0.001 ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
18 Dec 13:11:16 ntpd[11838]: configure: keyword ning unknown, line ignored That looks fishy, but I don't know if it has anything to do with the segfault. -- These are my opinions, not necessarily my employer's. I hate spam. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
I'm glad it is working for you and I'd be even happier if we could figure out why the NULL string got where it did earlier, as ntpd should never drop core like that. -- Harlan Stenn st...@ntp.org http://ntpforum.isc.org - be a member! ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
In article ywn94p108yb7@ntp1.isc.org, Harlan Stenn st...@ntp.org writes: I'm glad it is working for you and I'd be even happier if we could figure out why the NULL string got where it did earlier, as ntpd should never drop core like that. It might be just a simple bug. The code in that area says: if ((len = readlink(device,buffer,sizeof(buffer))) == -1) return(0); buffer[len] = 0; if ((nmea_host = strtok(buffer,:)) == NULL) return(0); nmea_port = atoi(strtok(NULL,:)); The idea is that if you are using the nmead, then /dev/gps0 will be a synbilic link to someting like server:port so nmea_host will be the server and nmea_port will be the port number. My (very old) man page for strtok says: The strtok() function can be used to parse the string s into tokens. The first call to strtok() should have s as its first argument. Subsequent calls should have the first argument set to NULL. Each call returns a pointer to the next token, or NULL when no more tokens are found. A less old (but still far from new) system says: The strtok() function parses a string into a sequence of tokens. On the first call to strtok() the string to be parsed should be specified in str. In each subsequent call that should parse the same string, str should be NULL. Both say Avoid using these functions. If you do use them, note that: (blah blah...) So my guess is that either the rules have changed or there is a bug in the library code. (More likely, I don't understand something.) -- These are my opinions, not necessarily my employer's. I hate spam. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
[ntp:questions] nmea patch
I just installed ntp-4.2.4p5 with the nmea patch and this configure: ./configure --disable-all-clocks --disable-parse-clocks \ --enable-NMEA --enable-LOCAL-CLOCK and it segfaults. Any clues? the relevant portion of my ntp.conf looks like this: server 127.127.20.0 prefer minpoll 4 fudge 127.127.20.0 refid GPS flag3 1 flag2 0 time1 0.0 ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
Re: [ntp:questions] nmea patch
In article 0ea640c4-6e30-457a-8b80-6274ea367...@k36g2000pri.googlegroups.com, dhavey dha...@gmail.com writes: I just installed ntp-4.2.4p5 with the nmea patch and this configure: ./configure --disable-all-clocks --disable-parse-clocks \ --enable-NMEA --enable-LOCAL-CLOCK and it segfaults. Any clues? the relevant portion of my ntp.conf looks like this: server 127.127.20.0 prefer minpoll 4 fudge 127.127.20.0 refid GPS flag3 1 flag2 0 time1 0.0 Is there anything is syslog? or the ntp log file? Does /dev/gps0 exist? Often, it's a symlink to whatever your OS uses for /dev/tty stuff. -- These are my opinions, not necessarily my employer's. I hate spam. ___ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
