January 2012 - openSUSE Kernel - openSUSE Mailing Lists

[opensuse-kernel] -desktop RC7, clock weirded
by Cristian Rodríguez 04 Jan '12

04 Jan '12

Hi: After installing the RC7 -desktop kernel and after the second reboot my workstation is doing weird things with the clock. What happended: - Reboot - (Beep, beep, beep) * 10 !! - Something that I was unable to read was printed on screen. - Then BIOS said "You system time is misconfigured, press F2 to enter bios setup) Any hints ? -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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[opensuse-kernel] Problems booting laptop Dell XPS 15z
by Cristian Rodríguez 04 Jan '12

04 Jan '12

Hi: I got this new laptop with openSUSE 12.1 and so far cannot successfully boot it :( First, it requires acpi=noirq and i915.semaphores=1 to make it pass the loader screen , otherwise it freezes completely... I have a remaining issue after applying those boot options.. as soon as the system starts the OS boot sequence (works just fine at the boot prompt), the USB ports turns off making impossible for me to press the USB device where a large, impossible to memorize password is stored, consequence of that is I cannot unlock the encrypted root volume ;-( Any hints how to make the USB port power up ? -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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[opensuse-kernel] btrfs high IO waiting
by Marguerite Su 04 Jan '12

04 Jan '12

Hi, kernel team, It drives me crazy everyday since 12.1 released. I carelessly formatted my root and home partition with btrfs system and migrate all my files. the root is formatted from un-formatted disk, so no revert or roll back can be done. It' quite a long story and I'll try to make it short. The case was : btrfs-transaction and btrfs-submit kept eating up my cpu io wait to 99.99%. Activities will surely cause the freeze: 1. open tabs and refresh web pages in any web browser. 2. open Dolphin and it refresh directories. 3. building packages. 4. any games. 5. open any window. mouse click. sudo something, refresh zypper will lag to some extent. And the longer you use your OS, the more frequent the lag will be, the longer time each lag will be. My Steps done to debug it: 1. I google-ed out a Xorg I/O solution by adjusting my Thinkpad T61 bios settings, turned down the "Security" - "Memory Protection" section. no luck. I even switched to QT raster for the elements draw work. no luck. 2. I suspected Firefox, for its sqlite database may cause lag, I switched to Chromium. but again Chromium is worse. Konqueror is faster at the first five minutes, then freeze. anyway, no luck. 3. I suspected 12.1 new Snapper, cause it by default snapshots your /tmp and /var/tmp, full of small files. I change the snapshot directory option empty, still no luck. 4. I tried to compile 3.2-rc7 by copying fs/btrfs directory from btrfs core developer's git into it, but the compile will fail at other parts. and I use 3.1.2's desktop and vanilla config extracted from its build service sources, still fails. So I think since btrfs-* process is built from fs/btrfs in kernel. maybe you guys have methods to debug it. because I'm a desktop user, I really lack the skills to do so. And I myself may be the only person who suffers from this problem, maybe because I love openSUSE so much that I use btrfs it recommends on a whole 1TB disk. If anything like commands need to be run from my desktop, gdb or something, but reply in detail how to and I'll ruin my life to generate outputs for you. Thank you very much for saving me. Marguerite References: 1. My fdisk and iotop info is here in this post: http://forums.opensuse.org/english/get-technical-help-here/hardware/470608-… 2. This bug is reported by me, but no confirmation or useful answer from Novell people. https://bugzilla.novell.com/show_bug.cgi?id=734518 3. This post initialed by Bartu5 has some replies by me: http://forums.opensuse.org/english/get-technical-help-here/hardware/468287-… 4. This post by me in Chinese but with short English summary in later replies: http://forums.opensuse.org/forums/ae-ae-chinese/aes-aeoe-e-e-ae-zae-aeoe/c-… 5. This mailing list posts may help, but I can't understand what they're talking about, it requires too many professional IT skills from me. http://www.spinics.net/lists/ceph-devel/msg03759.html -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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[opensuse-kernel] How to load modules on boot on 12.1
by Giacomo Comes 03 Jan '12

03 Jan '12

This is not a true kernel problem, but may be somebody here can point me to where to find help. I am used to set the variable MODULES_LOADED_ON_BOOT in the file /etc/sysconfig/kernel in order to load some module on boot. This worked until 11.4. On 12.1 it doesn't. chkconfig --list boot.loadmodules boot.loadmodules 0:off 1:off 2:off 3:off 4:off 5:off 6:off B:on systemctl status loadmodules.service loadmodules.service Loaded: masked (/dev/null) Active: inactive (dead) ls -l /lib/systemd/system/loadmodules.service lrwxrwxrwx 1 root root 9 Nov 30 18:24 /lib/systemd/system/loadmodules.service -> /dev/null systemd does not allow the service loadmodules. Why is that so? How can I load some modules on boot in 12.1? Thanks. Giacomo -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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[opensuse-kernel] cleancache and zcache not working
by Cristian Rodríguez 02 Jan '12

02 Jan '12

Hi: I cannot figure out how to enable zcache. first there is no /sys/kernel/mm/cleancache even though the -desktop kernel has CONFIG_CLEANCACHE=y .. modprobe'ing zcache or adding it to the initrd only causes the usual disclaimer to be shown, telling you that it is in the stagging directory.. How I can really use it ? cheers. ! -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-kernel+owner(a)opensuse.org

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