Bug#779238: lldpd: LLDPd daemon freezes

Thu, 26 Feb 2015 04:36:45 -0800 

This is the output:

# lsof  -n -p 17752
COMMAND   PID USER   FD   TYPE             DEVICE SIZE/OFF      NODE NAME
lldpd   17752 root  cwd    DIR              254,0     4096         2 /
lldpd   17752 root  rtd    DIR              254,0     4096         2 /
lldpd 17752 root txt REG 254,0 142520 1910045 /usr/sbin/lldpd lldpd 17752 root mem REG 254,0 47616 1049635 /lib/x86_64-linux-gnu/libnss_files-2.13.so lldpd 17752 root mem REG 254,0 43560 1049647 /lib/x86_64-linux-gnu/libnss_nis-2.13.so lldpd 17752 root mem REG 254,0 31584 1049648 /lib/x86_64-linux-gnu/libnss_compat-2.13.so lldpd 17752 root mem REG 254,0 92752 1049671 /lib/x86_64-linux-gnu/libz.so.1.2.7 lldpd 17752 root mem REG 254,0 89056 1049639 /lib/x86_64-linux-gnu/libnsl-2.13.so lldpd 17752 root mem REG 254,0 2048512 1982666 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0 lldpd 17752 root mem REG 254,0 59712 1983102 /usr/lib/x86_64-linux-gnu/libsensors.so.4.3.2 lldpd 17752 root mem REG 254,0 35104 1049644 /lib/x86_64-linux-gnu/libcrypt-2.13.so lldpd 17752 root mem REG 254,0 131107 1049651 /lib/x86_64-linux-gnu/libpthread-2.13.so lldpd 17752 root mem REG 254,0 530736 1049638 /lib/x86_64-linux-gnu/libm-2.13.so lldpd 17752 root mem REG 254,0 14768 1049642 /lib/x86_64-linux-gnu/libdl-2.13.so lldpd 17752 root mem REG 254,0 1574680 1908792 /usr/lib/libperl.so.5.14.2 lldpd 17752 root mem REG 254,0 40656 1049689 /lib/x86_64-linux-gnu/libwrap.so.0.7.6 lldpd 17752 root mem REG 254,0 1603600 1049640 /lib/x86_64-linux-gnu/libc-2.13.so lldpd 17752 root mem REG 254,0 649008 1909575 /usr/lib/libnetsnmp.so.15.1.2 lldpd 17752 root mem REG 254,0 1195544 1909592 /usr/lib/libnetsnmpmibs.so.15.1.2 lldpd 17752 root mem REG 254,0 151376 1909578 /usr/lib/libnetsnmphelpers.so.15.1.2 lldpd 17752 root mem REG 254,0 297904 1909560 /usr/lib/libnetsnmpagent.so.15.1.2 lldpd 17752 root mem REG 254,0 136936 1049645 /lib/x86_64-linux-gnu/ld-2.13.so lldpd 17752 root 0u CHR 1,3 0t0 1028 /dev/null lldpd 17752 root 1u CHR 1,3 0t0 1028 /dev/null lldpd 17752 root 2u CHR 1,3 0t0 1028 /dev/null 
lldpd   17752 root    3u  unix 0xffff8802f8bed580      0t0 434727198 socket
lldpd 17752 root 4u sock 0,7 0t0 434726723 can't identify protocol 
lldpd   17752 root    5u  unix 0xffff88147df7f740      0t0 434726718 socket


# lsof  -n -p 17754
COMMAND   PID   USER   FD   TYPE             DEVICE SIZE/OFF      NODE NAME
lldpd 17754 _lldpd cwd DIR 0,14 60 5332 /run/lldpd lldpd 17754 _lldpd rtd DIR 0,14 60 5332 /run/lldpd lldpd 17754 _lldpd txt REG 254,0 142520 1910045 /usr/sbin/lldpd lldpd 17754 _lldpd mem REG 254,0 47616 1049635 /lib/x86_64-linux-gnu/libnss_files-2.13.so lldpd 17754 _lldpd mem REG 254,0 43560 1049647 /lib/x86_64-linux-gnu/libnss_nis-2.13.so lldpd 17754 _lldpd mem REG 254,0 31584 1049648 /lib/x86_64-linux-gnu/libnss_compat-2.13.so lldpd 17754 _lldpd mem REG 254,0 92752 1049671 /lib/x86_64-linux-gnu/libz.so.1.2.7 lldpd 17754 _lldpd mem REG 254,0 89056 1049639 /lib/x86_64-linux-gnu/libnsl-2.13.so lldpd 17754 _lldpd mem REG 254,0 2048512 1982666 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0 lldpd 17754 _lldpd mem REG 254,0 59712 1983102 /usr/lib/x86_64-linux-gnu/libsensors.so.4.3.2 lldpd 17754 _lldpd mem REG 254,0 35104 1049644 /lib/x86_64-linux-gnu/libcrypt-2.13.so lldpd 17754 _lldpd mem REG 254,0 131107 1049651 /lib/x86_64-linux-gnu/libpthread-2.13.so lldpd 17754 _lldpd mem REG 254,0 530736 1049638 /lib/x86_64-linux-gnu/libm-2.13.so lldpd 17754 _lldpd mem REG 254,0 14768 1049642 /lib/x86_64-linux-gnu/libdl-2.13.so lldpd 17754 _lldpd mem REG 254,0 1574680 1908792 /usr/lib/libperl.so.5.14.2 lldpd 17754 _lldpd mem REG 254,0 40656 1049689 /lib/x86_64-linux-gnu/libwrap.so.0.7.6 lldpd 17754 _lldpd mem REG 254,0 1603600 1049640 /lib/x86_64-linux-gnu/libc-2.13.so lldpd 17754 _lldpd mem REG 254,0 649008 1909575 /usr/lib/libnetsnmp.so.15.1.2 lldpd 17754 _lldpd mem REG 254,0 1195544 1909592 /usr/lib/libnetsnmpmibs.so.15.1.2 lldpd 17754 _lldpd mem REG 254,0 151376 1909578 /usr/lib/libnetsnmphelpers.so.15.1.2 lldpd 17754 _lldpd mem REG 254,0 297904 1909560 /usr/lib/libnetsnmpagent.so.15.1.2 lldpd 17754 _lldpd mem REG 254,0 136936 1049645 /lib/x86_64-linux-gnu/ld-2.13.so lldpd 17754 _lldpd 0u CHR 1,3 0t0 1028 /dev/null lldpd 17754 _lldpd 1u CHR 1,3 0t0 1028 /dev/null lldpd 17754 _lldpd 2u CHR 1,3 0t0 1028 /dev/null lldpd 17754 _lldpd 3u unix 0xffff8802f8bed580 0t0 434727198 socket lldpd 17754 _lldpd 4u unix 0xffff88147df7f400 0t0 434726717 socket lldpd 17754 _lldpd 5u sock 0,7 0t0 434712768 can't identify protocol lldpd 17754 _lldpd 6u unix 0xffff8802f8bed240 0t0 434735159 /var/run/lldpd.socket lldpd 17754 _lldpd 7u pack 434712769 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 8u pack 434712774 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 9u pack 434712776 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 10u pack 434735180 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 11u pack 434735182 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 12u pack 434712789 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 13u pack 434729049 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 14u pack 434712793 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 15u pack 434712871 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 16u pack 434716235 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 17u pack 434725759 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 18u pack 434725761 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 19u pack 434712882 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 20u pack 434735245 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 21u pack 434712891 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 22u pack 434716249 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 23u pack 434735253 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 24u pack 434712901 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 25u pack 434725763 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 26u pack 434716254 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 27u pack 434735259 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 28u pack 434729149 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 29u pack 434716273 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 30u pack 434712910 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 31u pack 434735276 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 32u pack 434712919 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 33u pack 434725783 0t0 ALL type=SOCK_RAW lldpd 17754 _lldpd 34u pack 434735284 0t0 ALL type=SOCK_RAW 




On 02/26/2015 01:33 PM, Vincent Bernat wrote:

  ❦ 26 février 2015 12:36 +0200, Kiousis Alexandros <al...@noc.grnet.gr> :


This is what i get now from a stuck daemon:

# ps aux | grep lldp | grep -v grep
root     17752  0.0  0.0  46468  1432 ?        SNs  Feb25   0:11
/usr/sbin/lldpd -I eth*,tap*
_lldpd   17754  0.0  0.0  46468  1080 ?        S    Feb25   0:11
/usr/sbin/lldpd -I eth*,tap*
# strace -p 17752
Process 17752 attached - interrupt to quit
read(5, ^C <unfinished ...>
Process 17752 detached
# strace -p 17754
Process 17754 attached - interrupt to quit
write(32,
"\1\200\302\0\0\16\222\207K\365\214\37\210\314\2\7\4<\331+\1\31<\4\7\3\222\207K\365\214\37"...,
195^C
Process 17754 detached


In each case, also give the output of "lsof -n -p 17754" and "lsof -n -p
17752", so we know what 5 and 32 are. 5 is likely to be the read pipe of
the monitor process, so, it's normal to be stuck here. 32 is likely to
be the tap device and it's not normal to be stuck here.

I'll investigate a bit to check if the interface sockets are set in
blocking or non-blocking mode in this version.




--
-----------------------------------------------------------------------
Αλέξανδρος Κιούσης - al...@noc.grnet.gr
GRNET NOC System Administrator - http://noc.grnet.gr
-----------------------------------------------------------------------


--
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org

Reply via email to