Ran avahi-daemon under gdb. After restarting cups and avahi-daemon
spinning up I interrupted the running avahi-daemon with Ctrl+C and took
a backtrace:
(gdb) bt
#0 0x00007ffff7bd2fef in avahi_unescape_label (
name=name@entry=0x7fffffffe408,
dest=dest@entry=0x7fffffffe410 "HP Photosmart C5200 series @ till",
size=size@entry=64) at domain.c:100
#1 0x00007ffff7bd3674 in avahi_domain_equal (
a=0x6757a0 "\\032C5200\\032series\\032\\064\\032till._printer._tcp.local",
b=0x64d9c0
"Hewlett-Packard\\032HP\\032Color\\032LaserJet\\032CM3530\\032MFP\\032\\064\\032till._ipp._tcp.local")
at domain.c:239
#2 0x00007ffff79b1bdf in packet_add_probe_query (s=s@entry=0x62b190,
p=p@entry=0x674be0, pj=0x66e880, pj@entry=0x673380) at probe-sched.c:201
#3 0x00007ffff79b1ece in elapse_callback (e=<optimized out>,
data=<optimized out>) at probe-sched.c:281
#4 0x00007ffff79a2093 in expiration_event (timeout=<optimized out>,
userdata=0x623ad0) at timeeventq.c:94
#5 0x00007ffff7bd56c8 in avahi_simple_poll_dispatch (s=0x6229c0)
at simple-watch.c:570
#6 0x00007ffff7bd5785 in avahi_simple_poll_iterate (s=<optimized out>,
timeout=timeout@entry=-1) at simple-watch.c:605
#7 0x000000000040676c in run_server (c=<optimized out>) at main.c:1217
#8 main (argc=<optimized out>, argv=<optimized out>) at main.c:1635
(gdb)
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https://bugs.launchpad.net/bugs/1059286
Title:
avahi-daemon takes 100% CPU right after boot and at every restart of
CUPS
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