Public bug reported:
My laptop with Kubuntu Jaunty 64 bits is getting unusable due to
exagerate and constant disk writting operations. It occurs very often,
and when it starts happening, it takes all the time until the system is
rebooted.
I've checked the disk partitions and it seems to be fine, but enabling
"/proc/sys/vm/block_dump" I see in syslog:
---------------------------------
Jun 7 00:55:36 ibc-laptop kernel: [13160.152196] console-kit-dae(13049):
dirtied inode 8103129 (database~) on tmpfs
Jun 7 00:55:36 ibc-laptop kernel: [13160.163278] syslogd(11071): dirtied inode
287504 (auth.log) on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.163291] syslogd(11071): dirtied inode
287504 (auth.log) on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.163311] syslogd(11071): WRITE block
15400640 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.168202] kjournald(761): WRITE block
15394480 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.168223] kjournald(761): WRITE block
15400296 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.168227] kjournald(761): WRITE block
15394736 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.168301] kjournald(761): WRITE block
15394488 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.168306] kjournald(761): WRITE block
15400304 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.168310] kjournald(761): WRITE block
15394744 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.168315] kjournald(761): WRITE block
16974112 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.172670] sed(16597): dirtied inode
8103174 (sedtqzNlC) on tmpfs
Jun 7 00:55:36 ibc-laptop kernel: [13160.176901] kjournald(761): WRITE block
11368216 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176923] kjournald(761): WRITE block
11368224 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176930] kjournald(761): WRITE block
11368232 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176933] kjournald(761): WRITE block
11368240 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176937] kjournald(761): WRITE block
11368248 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176940] kjournald(761): WRITE block
11368256 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176943] kjournald(761): WRITE block
11368264 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176947] kjournald(761): WRITE block
11368272 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.176950] kjournald(761): WRITE block
11368280 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.178346] kjournald(761): WRITE block
11368288 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.189774] hal-acl-tool(16591): dirtied
inode 8103021 (acl-list) on tmpfs
Jun 7 00:55:36 ibc-laptop kernel: [13160.212629] pidof(16604): dirtied inode
8103200 (exe) on proc
Jun 7 00:55:36 ibc-laptop kernel: [13160.212696] pidof(16604): dirtied inode
8103203 (exe) on proc
Jun 7 00:55:36 ibc-laptop kernel: [13160.212761] pidof(16604): dirtied inode
8103206 (exe) on proc
Jun 7 00:55:36 ibc-laptop kernel: [13160.227687] hal-acl-tool(16602): dirtied
inode 8103190 (acl-list) on tmpfs
Jun 7 00:55:36 ibc-laptop kernel: [13160.269383] syslogd(11071): dirtied inode
287504 (auth.log) on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.269396] syslogd(11071): dirtied inode
287504 (auth.log) on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.269417] syslogd(11071): WRITE block
15400640 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.274796] kjournald(761): WRITE block
16974112 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.274816] kjournald(761): WRITE block
15394488 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.274821] kjournald(761): WRITE block
15400304 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.274893] kjournald(761): WRITE block
15394744 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.274898] kjournald(761): WRITE block
15394496 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278162] kjournald(761): WRITE block
11368296 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278170] kjournald(761): WRITE block
11368304 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278175] kjournald(761): WRITE block
11368312 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278179] kjournald(761): WRITE block
11368320 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278182] kjournald(761): WRITE block
11368328 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278186] kjournald(761): WRITE block
11368336 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278189] kjournald(761): WRITE block
11368344 on sda1
Jun 7 00:55:36 ibc-laptop kernel: [13160.278681] kjournald(761): WRITE block
11368352 on sda1
--------------------------------------
"dstat" shows a constat disk usage in writting mode:
-----------------------------------------
~# dstat
----total-cpu-usage---- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai hiq siq| read writ| recv send| in out | int csw
17 22 58 3 0 0| 595k 509k| 0 0 |7095B 12k|1046 2095
31 38 30 2 0 0| 0 1232k| 0 0 | 0 0 |1442 4078
28 38 33 1 0 1| 0 1256k| 0 0 | 0 0 |1491 3924
29 36 33 2 1 0| 0 1176k| 0 0 | 0 0 |1468 3834
31 34 35 1 0 0| 0 1296k| 126B 0 | 0 0 |1400 3921
32 35 32 1 0 1| 0 1232k| 0 0 | 0 0 |1458 4275
31 34 28 6 0 0| 816k 1264k| 292B 240B| 0 0 |1478 4326
28 36 35 1 1 0| 0 1200k| 0 0 | 0 0 |1515 3723
30 35 33 1 0 1| 0 1352k| 0 0 | 0 0 |1341 4219
29 38 28 3 1 0| 16k 1712k| 0 0 | 0 0 |1706 4470
29 38 31 1 0 0| 0 1312k| 126B 0 | 0 0 |1381 4129
29 36 34 2 0 1| 0 1168k| 42B 42B| 0 0 |1534 4230
-----------------------------------------
This is the typical output of "top" command:
-------------------------------------
op - 00:53:48 up 3:37, 3 users, load average: 4.73, 3.89, 2.84
Tasks: 151 total, 12 running, 139 sleeping, 0 stopped, 0 zombie
Cpu(s): 15.7%us, 21.3%sy, 0.4%ni, 58.8%id, 3.5%wa, 0.1%hi, 0.2%si, 0.0%st
Mem: 1012288k total, 996252k used, 16036k free, 145740k buffers
Swap: 0k total, 0k used, 0k free, 224908k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
11435 messageb 20 0 23356 3156 808 S 4 0.3 0:09.24 dbus-daemon
13022 haldaemo 20 0 36800 5368 3988 R 4 0.5 0:19.40 hald
13049 root 20 0 170m 9468 1844 R 4 0.9 0:15.62 console-kit-dae
13654 root 20 0 222m 83m 10m R 4 8.4 0:24.41 Xorg
5565 ibc 20 0 330m 43m 19m S 2 4.4 0:02.55 yakuake
10763 root 20 0 4736 1484 560 S 2 0.1 0:01.23 acpid
13141 root 20 0 15816 1276 1012 S 2 0.1 0:02.26 hald-runner
1 root 20 0 4620 1480 672 S 0 0.1 0:01.12 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0 0.0 0:00.58 migration/0
4 root 15 -5 0 0 0 S 0 0.0 0:00.94 ksoftirqd/0
5 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/0
-------------------------------------
Note that the load average is ~4.00 (and the only running applications
are kontact, yakuake, konqueror and some other apps.
My system is:
- CPU: AMD Turion(tm) 64 X2 Mobile Technology TL-52
- Kernel: 2.6.28-11-generic
- RAM: 1 GB
~# free -m
total used free shared buffers
cached
Mem: 988 973 14 0 191 186
-/+ buffers/cache: 596 392
Swap: 698 0 697
Also, I see very often the following error in syslog:
pulseaudio[5480]: module-console-kit.c: GetUnixUser() call failed:
org.freedesktop.DBus.Error.UnknownMethod: Method "GetUnixUser" with
signature "" on interface "org.freedesktop.ConsoleKit.Session" doesn't
exist
I've no idea about what could generate this problem, any hint?
** Affects: ubuntu
Importance: Undecided
Status: New
--
Too much "kjournald(XXX): WRITE block"
https://bugs.launchpad.net/bugs/384399
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