In the latest 50 files there was nothing interesting only massages from
the lastest boot. But when I printed the latest 500 I saw this message
repeating many times :
Oct 26 16:42:40 marla kernel: [20204.022488] =======================
Oct 26 16:42:40 marla kernel: [20204.028145] bad: scheduling from the idle
thread!
Oct 26 16:42:40 marla kernel: [20204.028149] Pid: 0, comm: swapper Tainted: P
2.6.27-7-generic #1
Oct 26 16:42:40 marla kernel: [20204.028151] [<c037c3f6>] ? printk+0x1d/0x1f
Oct 26 16:42:40 marla kernel: [20204.028155] [<c0122b8a>]
dequeue_task_idle+0x2a/0x40
Oct 26 16:42:40 marla kernel: [20204.028157] [<c012107f>]
dequeue_task+0xcf/0x130
Oct 26 16:42:40 marla kernel: [20204.028160] [<c012112a>]
deactivate_task+0x1a/0x30
Oct 26 16:42:40 marla kernel: [20204.028163] [<c037ca13>] schedule+0x4b3/0x790
Oct 26 16:42:40 marla kernel: [20204.028166] [<c01028cd>] cpu_idle+0xbd/0x140
Oct 26 16:42:40 marla kernel: [20204.028169] [<c037a651>]
start_secondary+0x9d/0xcc
Oct 26 16:42:40 marla kernel: [20204.028172] =======================
Oct 26 16:42:40 marla kernel: [20204.031210] bad: scheduling from the idle
thread!
Oct 26 16:42:40 marla kernel: [20204.031214] Pid: 0, comm: swapper Tainted: P
2.6.27-7-generic #1
Oct 26 16:42:40 marla kernel: [20204.031216] [<c037c3f6>] ? printk+0x1d/0x1f
Oct 26 16:42:40 marla kernel: [20204.031219] [<c0122b8a>]
dequeue_task_idle+0x2a/0x40
Oct 26 16:42:40 marla kernel: [20204.031222] [<c012107f>]
dequeue_task+0xcf/0x130
Oct 26 16:42:40 marla kernel: [20204.031225] [<c012112a>]
deactivate_task+0x1a/0x30
Oct 26 16:42:40 marla kernel: [20204.031227] [<c037ca13>] schedule+0x4b3/0x790
Oct 26 16:42:40 marla kernel: [20204.031231] [<c01028cd>] cpu_idle+0xbd/0x140
Oct 26 16:42:40 marla kernel: [20204.031233] [<c037a651>]
start_secondary+0x9d/0xcc
Oct 26 16:42:40 marla kernel: [20204.031236] =======================
Oct 26 16:42:40 marla kernel: [20204.037133] bad: scheduling from the idle
thread!
Oct 26 16:42:40 marla kernel: [20204.037137] Pid: 0, comm: swapper Tainted: P
2.6.27-7-generic #1
Oct 26 16:42:40 marla kernel: [20204.037139] [<c037c3f6>] ? printk+0x1d/0x1f
Oct 26 16:42:40 marla kernel: [20204.037143] [<c0122b8a>]
dequeue_task_idle+0x2a/0x40
Oct 26 16:42:40 marla kernel: [20204.037145] [<c012107f>]
dequeue_task+0xcf/0x130
Oct 26 16:42:40 marla kernel: [20204.037148] [<c012112a>]
deactivate_task+0x1a/0x30
Oct 26 16:42:40 marla kernel: [20204.037151] [<c037ca13>] schedule+0x4b3/0x790
Oct 26 16:42:40 marla kernel: [20204.037154] [<c01028cd>] cpu_idle+0xbd/0x140
Oct 26 16:42:40 marla kernel: [20204.037157] [<c037a651>]
start_secondary+0x9d/0xcc
Oct 26 16:42:40 marla kernel: [20204.037160] =======================
Oct 26 16:42:40 marla kernel: [20204.038218] bad: scheduling from the idle
thread!
Oct 26 16:42:40 marla kernel: [20204.038222] Pid: 0, comm: swapper Tainted: P
2.6.27-7-generic #1
Oct 26 16:42:40 marla kernel: [20204.038224] [<c037c3f6>] ? printk+0x1d/0x1f
Oct 26 16:42:40 marla kernel: [20204.038227] [<c0122b8a>]
dequeue_task_idle+0x2a/0x40
Oct 26 16:42:40 marla kernel: [20204.038230] [<c012107f>]
dequeue_task+0xcf/0x130
Oct 26 16:42:40 marla kernel: [20204.038233] [<c012112a>]
deactivate_task+0x1a/0x30
Oct 26 16:42:40 marla kernel: [20204.038235] [<c037ca13>] schedule+0x4b3/0x790
Oct 26 16:42:40 marla kernel: [20204.038239] [<c01028cd>] cpu_idle+0xbd/0x140
Oct 26 16:42:40 marla kernel: [20204.038241] [<c037a651>]
start_secondary+0x9d/0xcc
I think this is the the problem. I have also counted the lines in
syslog, kern.log and messages which contain "bad: scheduling from the
idle thread" :
$ more syslog | grep "bad: scheduling from the idle thread" | wc -l
874141
$ more kern.log | grep "bad: scheduling from the idle thread" | wc -l
874140
$ more messages | grep "bad: scheduling from the idle thread" | wc -l
146230
Maybe 874141 messages of 10 lines can make a log file be 1.1 GB. I add
as attachement (in the bug report) the first and the latest 1000 lines
of the respective log files :
head1000lines-kern.log.txt
head1000lines-messages.txt
head1000lines-syslog.txt
tail1000lines-kern.log.txt
tail1000lines-messages.txt
tail1000lines-syslog.txt
** Attachment added: "lp-bug-289581.tar.gz"
http://launchpadlibrarian.net/18928837/lp-bug-289581.tar.gz
--
extremely large log files in /var/log
https://bugs.launchpad.net/bugs/289581
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