Public bug reported:
Binary package hint: cupsys
On Edgy, when I start cupsys it pegs my CPU and then blocks, not
answering requests, and is un-strace'able:
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 262140 3740 1800 77272 3 1 11 8 7 7 9 6 83 1
0 0 262140 3732 1808 77272 0 0 0 20 2968 3147 12 9 78 1
0 0 262140 3732 1808 77272 0 0 0 0 3360 3542 16 11 73 0
0 0 262140 3732 1808 77272 0 0 0 0 3456 3635 15 12 73 0
0 0 262140 3732 1808 77272 0 0 0 36 3459 3626 16 10 74 0
1 0 262140 3732 1832 77280 0 0 3 21 3423 3606 20 7 71 2
1 0 262140 3732 1832 77280 0 0 0 0 3451 3629 18 11 72 0
0 1 262136 3876 2068 76496 0 0 638 20 3528 3897 26 21 14 39
1 0 262136 4416 2224 75212 0 0 417 0 3408 3607 54 16 0 30
1 0 262136 4416 2224 75212 0 0 0 0 3330 3487 89 11 0 0
1 0 262136 4416 2236 75212 0 0 0 69 3415 3605 89 11 0 0
1 0 262136 4416 2236 75212 0 0 0 0 3236 3409 90 10 0 0
1 0 262136 4420 2244 75212 0 0 0 96 2927 3111 89 11 0 0
1 0 262136 4420 2252 75212 0 0 0 28 3323 3492 90 10 0 0
# invoke-rc.d cupsys start was done when the cpu went to 0% idle
# lpstat -t
hangs.
# [EMAIL PROTECTED]:/var/log/cups# ps -ef | grep cups
cupsys 10960 1 61 16:49 ? 00:01:08 /usr/sbin/cupsd
# [EMAIL PROTECTED]:/var/log/cups# strace -f -p 10960
Process 10960 attached - interrupt to quit
just sits there until in sigint (^C) it.
[EMAIL PROTECTED]:/var/log/cups# strace -f /usr/sbin/cupsd -f
_llseek(10, 0, [0], SEEK_CUR) = 0
read(10, "root:x:0:\ndaemon:x:1:\nbin:x:2:\ns"..., 4096) = 898
read(10, "", 4096) = 0
close(10) = 0
munmap(0xb7ef4000, 4096) = 0
setgroups32(5, [109, 7, 20, 104, 111]) = 0
setuid32(105) = 0
just sits there until I sigintr it.
A (useless) stack trace fetched from gdb shows:
(gdb) where
#0 0x0807e9ae in ?? ()
#1 0x080bcf60 in ?? ()
#2 0x08098ee8 in _IO_stdin_used ()
#3 0x00000009 in ?? ()
#4 0x00000003 in ?? ()
#5 0x0808f63b in _IO_stdin_used ()
#6 0xbfcc7688 in ?? ()
#7 0xb7d2bcf1 in setuid () from /lib/tls/i686/cmov/libc.so.6
#8 0x08067064 in ?? ()
#9 0x00000069 in ?? ()
#10 0x0000006d in ?? ()
#11 0x00000000 in ?? ()
Is this in some way related to 55295?
b.
** Affects: cupsys (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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cupsys starts up, consumes 100% CPU and blocks
https://launchpad.net/bugs/78615
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