https://bugzilla.novell.com/show_bug.cgi?id=673944 https://bugzilla.novell.com/show_bug.cgi?id=673944#c1 --- Comment #1 from Andi Sugandi 2011-02-22 10:48:21 UTC --- Created an attachment (id=415468) --> (http://bugzilla.novell.com/attachment.cgi?id=415468) The actual log of '/var/log/messages' when plugging the USB, in making 'mobile broadband connection', until the device is unplugged. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=673944 https://bugzilla.novell.com/show_bug.cgi?id=673944#c3 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |jslaby@novell.com InfoProvider| |andi@opensuse-id.org --- Comment #3 from Jiri Slaby 2011-03-01 20:20:54 UTC --- (In reply to comment #0)

Created an attachment (id=415467) --> (http://bugzilla.novell.com/attachment.cgi?id=415467) [details] 'lsusb -v' output of the USB 3G-Modem

User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b11) Gecko/20110203 Firefox/4.0b11

It's been discussed in Factory-list[0], and needed some more valuable advice how to solve the issue.

There is something spinning in kworker. After you connect (and this happens), could you: * turn off syslog * dmesg -c > /tmp/log * for aa in 1 2 3 4 5; do echo t >/proc/sysrq-trigger dmesg -c |grep -A 50 kworker >>/tmp/log echo +++ >>/tmp/log done * attach /tmp/log here ? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=673944 https://bugzilla.novell.com/show_bug.cgi?id=673944#c5 --- Comment #5 from Andi Sugandi 2011-03-02 09:02:13 UTC --- (In reply to comment #3)

There is something spinning in kworker. After you connect (and this happens), could you: * turn off syslog

By doing this: su -c 'killall -9 rsyslogd' ? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=673944 https://bugzilla.novell.com/show_bug.cgi?id=673944#c7 Andi Sugandi changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|andi@opensuse-id.org | --- Comment #7 from Andi Sugandi 2011-06-08 11:51:58 UTC --- (In reply to comment #6) Sorry for the (very) late reply. I also tried the same way on Fedora 14 and 15, but the result looked no different.

Yeah, it's just not to spam your logs with the traces...

Unfortunately the traces show no activity of kworker unlike the powertop screenshot. When you run htop or top, what is the busy process spinning with the CPU?

That is why it looks strange, there is no process that consume extremely CPU resource. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=673944 https://bugzilla.novell.com/show_bug.cgi?id=673944#c9 --- Comment #9 from Andi Sugandi 2011-06-23 17:59:09 UTC --- I just realized that the issue does not appear *also* when the netbook with the AC Adapter (plugged to the AC power) *only*, without battery. The issue *only* appears when it uses battery only, without AC Adapter plugged to the AC Power. Still using the same kernel (3.0.0-rc3-256-gde505e7-1-vanilla) like it was in #c8.

zypper lr -d | grep Kernel 1 | Kernel:vanilla | Kernel:vanilla | Yes | Yes | 98 | rpm-md | http://download.opensuse.org/repositories/Kernel:/vanilla/standard

It is different like it was on openSUSE 11.4 RC1 (first time filling this Bug), the issue appeared in all situations: 1. When using battery only 2. Using Both battery, and AC Adapter 3. Using AC Adapter only. So, is this bug RESOLVED (by) UPSTREAM ? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=673944 https://bugzilla.novell.com/show_bug.cgi?id=673944#c11 --- Comment #11 from Andi Sugandi 2011-07-15 16:02:21 UTC --- I find now that when using Epiphany does not produce the issue while Firefox does. Which log or result of command that describe this report as Firefox does not consume extreme CPU resources (see c#7) as well as Epiphany. So now this bug actually belongs to Firefox and I was wrong filling this bug related to kernel? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.