[Bug 1059286] Re: avahi-daemon takes 100% CPU right after boot and at every restart of CUPS

Till Kamppeter 1059286 at bugs.launchpad.net
Mon Oct 8 11:21:19 UTC 2012 

Tim, I have tried it twice, both times I seem to run into a bug of gdb:

till at till:~$ sudo gdb avahi-daemon
[sudo] password for till: 
GNU gdb (GDB) 7.5-ubuntu
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/avahi-daemon...Reading symbols from /usr/lib/debug/.build-id/47/c734e7af8803ff790794348387df57e5843b67.debug...done.
done.
(gdb) finish
The program is not being run.
(gdb) help finish
Execute until selected stack frame returns.
Upon return, the value returned is printed and put in the value history.
(gdb) run
Starting program: /usr/sbin/avahi-daemon 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Process 29509 died: No such process; trying to remove PID file. (/var/run/avahi-daemon//pid)
Found user 'avahi' (UID 111) and group 'avahi' (GID 120).
Successfully dropped root privileges.
avahi-daemon 0.6.31 starting up.
Successfully called chroot().
Successfully dropped remaining capabilities.
Loading service file /services/nut.service.
Loading service file /services/udisks.service.
Joining mDNS multicast group on interface virbr0.IPv4 with address 192.168.122.1.
New relevant interface virbr0.IPv4 for mDNS.
Joining mDNS multicast group on interface eth2.IPv4 with address 192.168.178.26.
New relevant interface eth2.IPv4 for mDNS.
Network interface enumeration completed.
Registering new address record for fe80::fc54:ff:feaa:6be4 on vnet1.*.
Registering new address record for fe80::fc54:ff:fe36:4ab on vnet0.*.
Registering new address record for 192.168.122.1 on virbr0.IPv4.
Registering new address record for 2002:5ddb:93a1:0:222:4dff:fe84:44d7 on eth2.*.
Registering new address record for 2002:5ddb:93a1:0:e904:5d60:fd49:58c8 on eth2.*.
Registering new address record for 192.168.178.26 on eth2.IPv4.
Server startup complete. Host name is till.local. Local service cookie is 3725523792.
Registering HINFO record with values 'X86_64'/'LINUX'.
Received response from host 192.168.122.1 with invalid source port 1048 on interface 'virbr0.0'
Received response from host 192.168.122.1 with invalid source port 1049 on interface 'virbr0.0'
^C
Program received signal SIGINT, Interrupt.
avahi_utf8_valid (
    str=str at entry=0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till")
    at utf8.c:59
59	utf8.c: No such file or directory.
(gdb) bt
#0  avahi_utf8_valid (
    str=str at entry=0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till")
    at utf8.c:59
#1  0x00007ffff7bd30f8 in avahi_unescape_label (
    name=name at entry=0x7fffffffe408, 
    dest=dest at entry=0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till", 
    size=size at entry=64) at domain.c:109
#2  0x00007ffff7bd3674 in avahi_domain_equal (a=0x6770ba "_ipp._tcp.local", 
    b=0x64bd00 "Hewlett-Packard\\032HP\\032Color\\032LaserJet\\0322600n\\032\\064\\032till._ipp._tcp.local") at domain.c:239
#3  0x00007ffff79b1bdf in packet_add_probe_query (s=s at entry=0x62b200, 
    p=p at entry=0x676590, pj=0x66f6f0, pj at entry=0x670d70) at probe-sched.c:201
#4  0x00007ffff79b1ece in elapse_callback (e=<optimized out>, 
    data=<optimized out>) at probe-sched.c:281
#5  0x00007ffff79a2093 in expiration_event (timeout=<optimized out>, 
    userdata=0x623ad0) at timeeventq.c:94
#6  0x00007ffff7bd56c8 in avahi_simple_poll_dispatch (s=0x6229c0)
    at simple-watch.c:570
#7  0x00007ffff7bd5785 in avahi_simple_poll_iterate (s=<optimized out>, 
    timeout=timeout at entry=-1) at simple-watch.c:605
#8  0x000000000040676c in run_server (c=<optimized out>) at main.c:1217
#9  main (argc=<optimized out>, argv=<optimized out>) at main.c:1635
(gdb) finish
Run till exit from #0  avahi_utf8_valid (
    str=str at entry=0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till")
    at utf8.c:59
0x00007ffff7bd30f8 in avahi_unescape_label (name=name at entry=0x7fffffffe408, 
    dest=dest at entry=0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till", 
    size=size at entry=64) at domain.c:109
109	domain.c: No such file or directory.
Value returned is $1 = 0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till"
(gdb) finish
Run till exit from #0  0x00007ffff7bd30f8 in avahi_unescape_label (
    name=name at entry=0x7fffffffe408, 
    dest=dest at entry=0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till", 
    size=size at entry=64) at domain.c:109
avahi_domain_equal (a=0x6770ba "_ipp._tcp.local", 
    b=0x64bd00 "Hewlett-Packard\\032HP\\032Color\\032LaserJet\\0322600n\\032\\064\\032till._ipp._tcp.local") at domain.c:240
240	in domain.c
Value returned is $2 = 0x7fffffffe410 "Hewlett-Packard HP LaserJet 1020 @ till"
(gdb) finish
Run till exit from #0  avahi_domain_equal (a=0x6770ba "_ipp._tcp.local", 
    b=0x64bd00 "Hewlett-Packard\\032HP\\032Color\\032LaserJet\\0322600n\\032\\064\\032till._ipp._tcp.local") at domain.c:240
0x00007ffff79b1bdf in packet_add_probe_query (s=s at entry=0x62b200, 
    p=p at entry=0x676590, pj=0x66f6f0, pj at entry=0x670d70) at probe-sched.c:201
201	probe-sched.c: No such file or directory.
Value returned is $3 = 0
(gdb) finish
Run till exit from #0  0x00007ffff79b1bdf in packet_add_probe_query (
    s=s at entry=0x62b200, p=p at entry=0x676590, pj=0x66f6f0, pj at entry=0x670d70)
    at probe-sched.c:201
0x00007ffff79b1ece in elapse_callback (e=<optimized out>, data=<optimized out>)
    at probe-sched.c:281
281	in probe-sched.c
Value returned is $4 = 1
(gdb) finish
Run till exit from #0  0x00007ffff79b1ece in elapse_callback (
    e=<optimized out>, data=<optimized out>) at probe-sched.c:281
expiration_event (timeout=<optimized out>, userdata=0x623ad0)
    at timeeventq.c:96
96	timeeventq.c: No such file or directory.
(gdb) finish
Run till exit from #0  expiration_event (timeout=<optimized out>, 
    userdata=0x623ad0) at timeeventq.c:96
avahi_simple_poll_dispatch (s=0x6229c0) at simple-watch.c:571
571	simple-watch.c: No such file or directory.
(gdb) finish
Run till exit from #0  avahi_simple_poll_dispatch (s=0x6229c0)
    at simple-watch.c:571
/build/buildd/gdb-7.5/gdb/breakpoint.c:8592: internal-error: set_momentary_breakpoint: Assertion `!frame_id_inlined_p (frame_id)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) n

/build/buildd/gdb-7.5/gdb/breakpoint.c:8592: internal-error: set_momentary_breakpoint: Assertion `!frame_id_inlined_p (frame_id)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) n
(gdb) quit
A debugging session is active.

        Inferior 1 [process 31221] will be killed.

Quit anyway? (y or n) 
Please answer y or n.
A debugging session is active.

        Inferior 1 [process 31221] will be killed.

Quit anyway? (y or n) 
Please answer y or n.
A debugging session is active.

        Inferior 1 [process 31221] will be killed.

Quit anyway? (y or n) 
Please answer y or n.
A debugging session is active.

        Inferior 1 [process 31221] will be killed.

Quit anyway? (y or n) y
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ 
till at till:~$ sudo gdb avahi-daemon
GNU gdb (GDB) 7.5-ubuntu
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/avahi-daemon...Reading symbols from /usr/lib/debug/.build-id/47/c734e7af8803ff790794348387df57e5843b67.debug...done.
done.
(gdb) run
Starting program: /usr/sbin/avahi-daemon 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Process 31221 died: No such process; trying to remove PID file. (/var/run/avahi-daemon//pid)
Found user 'avahi' (UID 111) and group 'avahi' (GID 120).
Successfully dropped root privileges.
avahi-daemon 0.6.31 starting up.
Successfully called chroot().
Successfully dropped remaining capabilities.
Loading service file /services/nut.service.
Loading service file /services/udisks.service.
Joining mDNS multicast group on interface virbr0.IPv4 with address 192.168.122.1.
New relevant interface virbr0.IPv4 for mDNS.
Joining mDNS multicast group on interface eth2.IPv4 with address 192.168.178.26.
New relevant interface eth2.IPv4 for mDNS.
Network interface enumeration completed.
Registering new address record for fe80::fc54:ff:feaa:6be4 on vnet1.*.
Registering new address record for fe80::fc54:ff:fe36:4ab on vnet0.*.
Registering new address record for 192.168.122.1 on virbr0.IPv4.
Registering new address record for 2002:5ddb:93a1:0:222:4dff:fe84:44d7 on eth2.*.
Registering new address record for 2002:5ddb:93a1:0:e904:5d60:fd49:58c8 on eth2.*.
Registering new address record for 192.168.178.26 on eth2.IPv4.
Server startup complete. Host name is till.local. Local service cookie is 712852784.
Registering HINFO record with values 'X86_64'/'LINUX'.
Received response from host 192.168.122.1 with invalid source port 1049 on interface 'virbr0.0'
Invalid legacy unicast query packet.
Invalid legacy unicast query packet.
Invalid legacy unicast query packet.

Received response from host 192.168.122.1 with invalid source port 1049 on interface 'virbr0.0'
Received response from host 192.168.122.1 with invalid source port 1049 on interface 'virbr0.0'

Received response from host 192.168.122.1 with invalid source port 1049 on interface 'virbr0.0'
^C
Program received signal SIGINT, Interrupt.
__ctype_b_loc () at ../include/ctype.h:33
33	../include/ctype.h: No such file or directory.
(gdb) bt
#0  __ctype_b_loc () at ../include/ctype.h:33
#1  0x00007ffff7bd3062 in avahi_unescape_label (
    name=name at entry=0x7fffffffe400, 
    dest=dest at entry=0x7fffffffe450 "Hewlett-Packard HP Color LaserJet CM3530 MFP @ till", size=size at entry=64) at domain.c:76
#2  0x00007ffff7bd368f in avahi_domain_equal (a=0x6761ba "_ipps._tcp.local", 
    b=0x64e41c "032\\064\\032till._ipp._tcp.local") at domain.c:241
#3  0x00007ffff79b1bdf in packet_add_probe_query (s=s at entry=0x62b1f0, 
    p=p at entry=0x675690, pj=0x66f300, pj at entry=0x670230) at probe-sched.c:201
#4  0x00007ffff79b1ece in elapse_callback (e=<optimized out>, 
    data=<optimized out>) at probe-sched.c:281
#5  0x00007ffff79a2093 in expiration_event (timeout=<optimized out>, 
    userdata=0x623ad0) at timeeventq.c:94
#6  0x00007ffff7bd56c8 in avahi_simple_poll_dispatch (s=0x6229c0)
    at simple-watch.c:570
#7  0x00007ffff7bd5785 in avahi_simple_poll_iterate (s=<optimized out>, 
    timeout=timeout at entry=-1) at simple-watch.c:605
#8  0x000000000040676c in run_server (c=<optimized out>) at main.c:1217
#9  main (argc=<optimized out>, argv=<optimized out>) at main.c:1635
(gdb) finish
Run till exit from #0  __ctype_b_loc () at ../include/ctype.h:33
0x00007ffff7bd3062 in avahi_unescape_label (name=name at entry=0x7fffffffe400, 
    dest=dest at entry=0x7fffffffe450 "Hewlett-Packard HP Color LaserJet CM3530 MFP @ till", size=size at entry=64) at domain.c:76
76	domain.c: No such file or directory.
Value returned is $1 = (const short unsigned int **) 0x7ffff7fd76b8
(gdb) finish
Run till exit from #0  0x00007ffff7bd3062 in avahi_unescape_label (
    name=name at entry=0x7fffffffe400, 
    dest=dest at entry=0x7fffffffe450 "Hewlett-Packard HP Color LaserJet CM3530 MFP @ till", size=size at entry=64) at domain.c:76
avahi_domain_equal (a=0x6761ba "_ipps._tcp.local", 
    b=0x64e42c "_ipp._tcp.local") at domain.c:242
242	in domain.c
Value returned is $2 = 0x7fffffffe450 "Hewlett-Packard HP Color LaserJet CM3530 MFP @ till"
(gdb) finish
Run till exit from #0  avahi_domain_equal (a=0x6761ba "_ipps._tcp.local", 
    b=0x64e42c "_ipp._tcp.local") at domain.c:242
0x00007ffff79b1bdf in packet_add_probe_query (s=s at entry=0x62b1f0, 
    p=p at entry=0x675690, pj=0x66f300, pj at entry=0x670230) at probe-sched.c:201
201	probe-sched.c: No such file or directory.
Value returned is $3 = 0
(gdb) finish
Run till exit from #0  0x00007ffff79b1bdf in packet_add_probe_query (
    s=s at entry=0x62b1f0, p=p at entry=0x675690, pj=0x66f300, pj at entry=0x670230)
    at probe-sched.c:201
0x00007ffff79b1ece in elapse_callback (e=<optimized out>, data=<optimized out>)
    at probe-sched.c:281
281	in probe-sched.c
Value returned is $4 = 1
(gdb) finish
Run till exit from #0  0x00007ffff79b1ece in elapse_callback (
    e=<optimized out>, data=<optimized out>) at probe-sched.c:281
expiration_event (timeout=<optimized out>, userdata=0x623ad0)
    at timeeventq.c:96
96	timeeventq.c: No such file or directory.
(gdb) finish
Run till exit from #0  expiration_event (timeout=<optimized out>, 
    userdata=0x623ad0) at timeeventq.c:96
avahi_simple_poll_dispatch (s=0x6229c0) at simple-watch.c:571
571	simple-watch.c: No such file or directory.
(gdb) finish
Run till exit from #0  avahi_simple_poll_dispatch (s=0x6229c0)
    at simple-watch.c:571
/build/buildd/gdb-7.5/gdb/breakpoint.c:8592: internal-error: set_momentary_breakpoint: Assertion `!frame_id_inlined_p (frame_id)' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to avahi in Ubuntu.
https://bugs.launchpad.net/bugs/1059286

Title:
  avahi-daemon takes 100% CPU right after boot and at every restart of
  CUPS

Status in “avahi” package in Ubuntu:
  New

Bug description:
  When I boot the system and log in avahi-daemon takes 100% CPU and
  Avahi/mDNS/Bonjour does not work at all, avahi-discover does not get
  access to anything and does not open its window, until it reaches a
  timeout and shows an error dialog.

  When I restart avahi-daemon with

  sudo restart avahi-daemon

  avahi-daemon usually gets back to normal not taking significant CPU
  percentage and answering to avahi-discover correctly. If it takes 100%
  CPU again I simply do another restart to get it to normal.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: avahi-daemon 0.6.31-1ubuntu1
  ProcVersionSignature: Ubuntu 3.5.0-16.25-generic 3.5.4
  Uname: Linux 3.5.0-16-generic x86_64
  ApportVersion: 2.5.3-0ubuntu1
  Architecture: amd64
  Date: Mon Oct  1 00:05:30 2012
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120724.2)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: avahi
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.avahi.avahi.daemon.conf: 2012-09-18T17:25:04.112674

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