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Old 4th October 2007, 11:24 AM
kreyszig Offline
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Join Date: Mar 2007
Posts: 15
mysterious slowdown FC6

Hi all,

I have recently installed FC 6 on one of my machines. After anytime between a few minutes and a few hours, the system seems to slow down without much of a cpu load at all. It seems to coincide with a message from the kernel:

Message from syslogd@rsgypsum at Wed Oct 3 18:32:14 2007 ...
rsgypsum kernel: Disabling IRQ #11

Everytime I get this the machine goes into this slow state - where the mouse is extremely laggy and window movement is similarly excrutiatingly slow. Here is the output of ps -e:

PID TTY TIME CMD
1 ? 00:00:00 init
2 ? 00:00:00 migration/0
3 ? 00:00:00 ksoftirqd/0
4 ? 00:00:00 watchdog/0
5 ? 00:00:00 events/0
6 ? 00:00:00 khelper
7 ? 00:00:00 kthread
9 ? 00:00:00 xenwatch
10 ? 00:00:00 xenbus
12 ? 00:00:00 kblockd/0
13 ? 00:00:00 kacpid
79 ? 00:00:00 cqueue/0
83 ? 00:00:00 khubd
85 ? 00:00:00 kseriod
141 ? 00:00:00 pdflush
142 ? 00:00:00 kswapd0
143 ? 00:00:00 aio/0
290 ? 00:00:00 kpsmoused
311 ? 00:00:00 kmirrord
318 ? 00:00:00 kjournald
339 ? 00:00:00 kauditd
365 ? 00:00:00 udevd
718 ? 00:00:00 kgameportd
1197 ? 00:00:00 kmpathd/0
1220 ? 00:00:00 kjournald
1643 ? 00:00:00 syslogd
1646 ? 00:00:00 klogd
1673 ? 00:00:00 portmap
1692 ? 00:00:00 rpc.statd
1721 ? 00:00:00 rpc.idmapd
1735 ? 00:00:19 dbus-daemon
1744 ? 00:00:00 hcid
1749 ? 00:00:00 sdpd
1768 ? 00:00:00 krfcommd
1803 ? 00:00:00 pcscd
1821 ? 00:00:00 hidd
1838 ? 00:00:00 automount
1855 ? 00:00:00 acpid
1864 ? 00:00:00 hpiod
1879 ? 00:00:00 cupsd
1888 ? 00:00:00 sshd
1922 ? 00:00:00 sendmail
1930 ? 00:00:00 sendmail
1940 ? 00:00:00 gpm
1949 ? 00:00:00 crond
1980 ? 00:00:00 xfs
1997 ? 00:00:00 atd
2016 ? 00:00:00 avahi-daemon
2017 ? 00:00:00 avahi-daemon
2026 ? 00:00:06 hald
2027 ? 00:00:00 hald-runner
2033 ? 00:00:00 hald-addon-acpi
2036 ? 00:00:00 hald-addon-keyb
2045 ? 00:00:00 hald-addon-stor
2066 ? 00:00:00 dhcdbd
2070 ? 00:00:00 NetworkManager
2287 ? 00:00:00 xenstored
2296 ? 00:00:00 python
2298 ? 00:00:00 python
2300 ? 00:00:00 xenconsoled
2302 ? 00:00:00 blktapctrl
2488 ? 00:00:00 ntpd
2772 ? 00:00:00 dhclient
2793 ? 00:00:00 smartd
2805 tty1 00:00:00 mingetty
2810 tty2 00:00:00 mingetty
2813 tty3 00:00:00 mingetty
2814 tty4 00:00:00 mingetty
2815 tty5 00:00:00 mingetty
2832 tty6 00:00:00 mingetty
2833 ? 00:00:00 prefdm
2838 ? 00:00:00 gdm-binary
2905 ? 00:00:00 gdm-binary
2909 ? 00:00:00 gdm-binary
2912 tty7 00:06:48 Xorg
2953 ? 00:00:00 gnome-session
3003 ? 00:00:00 ssh-agent
3006 ? 00:00:00 dbus-launch
3007 ? 00:00:00 dbus-daemon
3013 ? 00:00:00 gconfd-2
3016 ? 00:00:00 gnome-keyring-d
3018 ? 00:00:00 gnome-settings-
3035 ? 00:00:05 metacity
3039 ? 00:00:01 gnome-panel
3041 ? 00:00:01 nautilus
3046 ? 00:00:00 gnome-vfs-daemo
3049 ? 00:00:00 bonobo-activati
3051 ? 00:00:00 eggcups
3053 ? 00:00:00 bluez-pin
3054 ? 00:00:00 gnome-volume-ma
3058 ? 00:00:08 gnome-power-man
3077 ? 00:00:00 gam_server
3079 ? 00:00:01 nm-applet
3083 ? 00:00:00 pam-panel-icon
3085 ? 00:00:00 escd
3090 ? 00:00:00 pam_timestamp_c
3097 ? 00:00:02 wnck-applet
3099 ? 00:00:00 trashapplet
3115 ? 00:00:00 mapping-daemon
3123 ? 00:00:00 notification-ar
3125 ? 00:00:00 clock-applet
3127 ? 00:00:00 mixer_applet2
3133 ? 00:00:01 gnome-screensav
3164 ? 00:00:10 gnome-terminal
3166 ? 00:00:00 gnome-pty-helpe
3167 pts/1 00:00:00 bash
3255 pts/2 00:00:00 bash
3554 ? 00:00:00 firefox
3565 ? 00:00:00 run-mozilla.sh
3570 ? 00:01:27 firefox-bin
4120 ? 00:00:00 pdflush
7380 pts/1 00:00:00 su
7383 pts/1 00:00:00 bash
13913 pts/2 00:00:00 su
13916 pts/2 00:00:00 bash
17196 pts/1 00:00:00 ps


and the top of "top"

top - 10:02:19 up 17:07, 2 users, load average: 1.14, 0.47, 0.24
Tasks: 116 total, 1 running, 115 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.7%us, 0.3%sy, 0.0%ni, 95.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1451140k total, 1435308k used, 15832k free, 71792k buffers
Swap: 2031608k total, 0k used, 2031608k free, 1104532k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2912 root 15 0 180m 29m 7872 S 5.0 2.1 6:55.90 Xorg
1 root 15 0 2044 636 548 S 0.0 0.0 0:00.85 init
2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
3 root 39 19 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/0
4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root 10 -5 0 0 0 S 0.0 0.0 0:00.07 events/0
6 root 10 -5 0 0 0 S 0.0 0.0 0:00.01 khelper
7 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kthread
9 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 xenwatch
10 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 xenbus
12 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/0
13 root 18 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid
79 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/0
83 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khubd
85 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 kseriod
141 root 15 0 0 0 0 S 0.0 0.0 0:00.02 pdflush
142 root 15 -5 0 0 0 S 0.0 0.0 0:00.02 kswapd0
143 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 aio/0
290 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kpsmoused
311 root 15 -5 0 0 0 S 0.0 0.0 0:00.00 kmirrord
318 root 10 -5 0 0 0 S 0.0 0.0 0:00.50 kjournald
339 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kauditd
365 root 19 -4 2400 840 352 S 0.0 0.1 0:00.67 udevd
718 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 kgameportd
1197 root 19 -5 0 0 0 S 0.0 0.0 0:00.00 kmpathd/0
1220 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kjournald
1643 root 16 0 1808 712 596 S 0.0 0.0 0:00.10 syslogd
1646 root 15 0 1660 416 348 S 0.0 0.0 0:00.01 klogd
1673 rpc 19 0 1792 544 444 S 0.0 0.0 0:00.00 portmap
1692 root 18 0 1904 824 692 S 0.0 0.1 0:00.01 rpc.statd
1721 root 15 0 4948 552 276 S 0.0 0.0 0:00.00 rpc.idmapd
1735 dbus 17 0 3280 1092 816 S 0.0 0.1 0:19.07 dbus-daemon
1744 root 23 0 2364 860 764 S 0.0 0.1 0:00.00 hcid
1749 root 25 0 1728 480 408 S 0.0 0.0 0:00.00 sdpd
1768 root 9 -10 0 0 0 S 0.0 0.0 0:00.00 krfcommd
1803 root 18 0 33192 1276 524 S 0.0 0.1 0:00.37 pcscd
1821 root 25 0 1892 432 352 S 0.0 0.0 0:00.00 hidd
1838 root 25 0 9056 1068 828 S 0.0 0.1 0:00.04 automount
1855 root 15 0 1660 524 436 S 0.0 0.0 0:00.00 acpid
1864 root 25 0 5072 488 324 S 0.0 0.0 0:00.00 hpiod
1879 root 18 0 9860 2184 1536 S 0.0 0.2 0:00.00 cupsd

It seems like there might be some kind of update going on - for some reason I can't ifconfig at the moment, but the system monitor is showing 3.7gb on eth0 having been downloaded since yesterday (the machine has been on overnight and was in this slow state when I came in to work today)
I haven't asked for any updates, and can't see any instances of yum running.
Any ideas?
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