From: "Artem S. Tashkinov" <t.artem@lycos.com>
To: linux-kernel@vger.kernel.org
Subject: [REGRESSION] [Linux 3.2] top/htop and all other CPU usage metering applications has gone crackers
Date: Thu, 24 Nov 2011 10:30:15 +0000 (GMT) [thread overview]
Message-ID: <1718181782.740375.1322130615898.JavaMail.mail@webmail19> (raw)
Hello,
I'd like to report a weird regression in Linux 3.2 (running rc3 now) - all CPU metering applications have gone terribly mad
under this kernel:
Here are two text snapshots of htop:
1 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Tasks: 135 total, 1 running
2 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Load average: 0.00 0.01 0.05
3 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Uptime: 00:27:49
4 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Load: 0.00
Mem[|||||||||||| 544/8093MB] Avg[||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%]
IORR IOWR IO PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command
0 0 0 3529 root 20 0 70052 52244 19324 S 300. 0.6 0:25.93 /usr/bin/X -br
0 0 0 3678 user 20 0 33952 10220 8448 S 100. 0.1 0:03.58 gkrellm
0 0 0 3772 user 20 0 32144 13960 9532 S 100. 0.2 0:07.46 konsole [kdeinit] --noxft
0 0 0 6061 user 20 0 2780 1276 960 R 100. 0.0 0:00.01 htop
0 0 0 1 root 20 0 2884 1376 1168 S 0.0 0.0 0:01.00 /sbin/init
0 0 0 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
1 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Tasks: 135 total, 1 running
2 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Load average: 0.00 0.01 0.05
3 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Uptime: 00:28:43
4 [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%] Load: 0.00
Mem[|||||||||||| 545/8093MB] Avg[||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||100.0%]
IORR IOWR IO PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command
0 0 0 6061 user 20 0 2780 1288 972 R 57.0 0.0 0:00.11 htop
0 0 0 5243 user 20 0 559M 318M 30928 S 57.0 3.9 0:26.07 /opt/firefox/firefox
0 0 0 3687 user 20 0 108M 39124 23564 S 57.0 0.5 0:06.50 kedit
0 0 0 3637 user 20 0 26960 5572 4288 S 57.0 0.1 0:00.02 klauncher [kdeinit] --new-startup
0 0 0 3529 root 20 0 70052 52244 19324 S 0.0 0.6 0:26.71 /usr/bin/X -br
Interestingly with this madness going on, the internal kernel average load counter works properly:
[root@localhost ~]# uptime
16:20:38 up 44 min, 2 users, load average: 0.02, 0.04, 0.05
Right at this moment all process viewers report 400% CPU load (I have 4 CPU cores), either 400% loaded by user processes
or 200% by system and 200% by user processes.
Graphically it looks this way: http://img717.imageshack.us/img717/6495/top2b.png
I'm not running any CPU intensive applications at the moment at all.
My .config file can be downloaded here: http://ompldr.org/iYmZneg
My distro is Fedora 14 i686.
Best wishes,
Artem
next reply other threads:[~2011-11-24 10:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-24 10:30 Artem S. Tashkinov [this message]
2011-11-24 20:05 ` [REGRESSION] [Linux 3.2] top/htop and all other CPU usage metering applications has gone crackers Tino Keitel
2011-11-27 11:04 ` Tino Keitel
2011-11-27 11:45 ` Rafael J. Wysocki
2011-11-27 11:45 ` Tino Keitel
2011-11-27 11:56 ` Rafael J. Wysocki
2011-11-27 11:57 ` Artem S. Tashkinov
2011-11-28 19:55 ` Tino Keitel
2011-11-28 20:19 ` Rafael J. Wysocki
2011-11-28 21:41 ` Michal Hocko
2011-11-28 21:43 ` Michal Hocko
2011-11-28 21:48 ` Michal Hocko
2011-11-29 8:14 ` Michal Hocko
2011-11-29 21:25 ` Tino Keitel
2011-11-29 21:16 ` Maciej Rutecki
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