**Page is out of date** Please update it if You can. ====== KernelDesktop ====== ===== kernel-desktop specifications ===== ==== Main goals: ==== * create kernel for desktop computers, oriented to architectures used as desktops: ppc, x86, amd64 (there is no ia64 support) * not so loaded as main PLD kernel, no full grsec, no vserver * add patches improving latency and other tasks useful on desktops ==== Conditional Builds: ==== * preemptrt (**RT**): * [[http://people.redhat.com/~mingo/realtime-preempt/|realtime-preempt]] patch by Ingo Molar\\ this patch contains many changes from [[http://kernel.org/patchtypes/mm.html|-mm]] tree thus kernel using it may be very unstable or unusable ck (**CK**): * Con Kolivas [[http://members.optusnet.com.au/ckolivas/kernel/|desktop patches]]\\ those patches are obsolete in current kernel versions. grsec_minimal (**GR**): * grsecurity for ''/proc'': in PLD noone can live without grsecured ''/proc'', even on desktops ;-) laptop (**LAP**): * simply changes HZ from default 1000 to 100, this should improve on-batery time, but decreases corectness of some programs using timer a lot (even 'time' in shells is not very reliable)\\ example: played some music with mplayer, time: HZ=100: real 32m24.907s user 0m4.420s sys 0m0.780s HZ=1000: real 32m25.936s user 0m22.736s sys 0m7.582s More patches: * [[http://www.suspend2.net/|suspend2]] * [[http://dev.gentoo.org/~spock/projects/vesafb-tng/|vesa-tng]] * [[http://dev.gentoo.org/~spock/projects/gensplash/|fbsplash]] or [[http://www.bootsplash.org/|bootsplash]] * [[http://www.namesys.com/v4/v4.html|reiser4]] and [[http://squashfs.sourceforge.net/|squashfs]] ---- ===== Series 2.6.17 ===== now on branch LINUX_2_6_17 | Arch|Version|SMP|RT |CK |GR |LAP|BUILDS|TESTED| | | | | | | | | | | |ppc |2.6.17.11| - | - | + | + | + |yes|ok, but (1)| |ppc |2.6.17.11|-/+| + | + | + |-/+|yes|does not work (2)| |ppc |2.6.17.14| - | - | + | + | + |yes|ok, but (1) | |ppc |2.6.17.14| + | - | + | + | + |yes|no | |ppc |2.6.17.14|-/+| + | + | + | - |yes|does not work (2)| | | | | | | | | | | |x86 |2.6.17.14|-/+| - | + | + |-/+|yes|no | |x86 |2.6.17.14|-/+| + | + | + |-/+|yes|no, but don't use| | | | | | | | | | | |amd64|2.6.17.11| - | - | + | + | - |yes|ok (3) | |amd64|2.6.17.11| - | + | + | + | - |yes|ok, but (4) | |amd64|2.6.17.14|-/+| - | + | + | - |yes|no | |amd64|2.6.17.14|-/+| + | + | + | - |yes|no |Exact description: - iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200 * - suspend2 (suspend to disk) does not work * - fails to detect lpj/bogomips correctly, adding lpj=3333333 helps * + no problems with suspend to ram * + Air''''Port II works well (bcm43xx) * + fbsplash works * + swap prefetch (CK-patch part) works iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200 * - FATAL: no hardware is working because of problems with genirq Athlon64 2GHz, 1GB RAM, some NVidia board, NVidia Ge''''Force 2 MX 200 * * suspend2 works, but there are issues with clock after resuming * + ext3 cache works fine Athlon64 2GHz, 1GB RAM, some NVidia board, NVidia Ge''''Force 2 MX 200 * + did not have problems with genirq, unlike on other archs/computers * - sometimes is was locking in kernel-mode for a long time (5 seconds) ---- ===== Series 2.6.18 ===== | Arch|Version|SMP|RT|CK|GR|LAP|BUILDS|TESTED| | | | | | | | | | | |* |2.6.18.2 | * | + | + | * | * |**there is no ck-patch for rt**| | | | | | | | | | | |ppc |2.6.18.2 |-/+| - | + | - |-/+|yes|no | |ppc |2.6.18.2 | - | - | + | + | + |yes|no | |ppc |2.6.18.3 | - | - | + | + | - |yes|works (2) | |ppc |2.6.18.2 | + | - | + | + | - |yes|works (3) | |ppc |2.6.18.2 |-/+| + | - | + | - |yes|fails to boot (1) | | | | | | | | | | | |x86 |2.6.18.2 |-/+| - | + |-/+| - |yes|no | |x86 |2.6.18.2 |-/+| + | - |-/+| - |yes|no | | | | | | | | | | | |amd64|2.6.18.2 |-/+| - | + | - | - |yes|no | |amd64|2.6.18.2 |-/+| + | - | + | - |yes|no |Exact description: - iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200 * - does not even leave Open''''Firmware console iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200 * - fails to detect lpj/bogomips correctly, adding lpj=333333 helps\\NOTE: this lpj is different than in 2.6.17, depends on HZ ? * + suspend2 (2.2.9) works, no more problems with X * + no problems with suspend to ram * + Air''''Port II works well (bcm43xx) iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200 * - fails to detect lpj/bogomips correctly * ? no further tests ---- ===== Series 2.6.19 ===== Not started. CK patch is missing. ---- ===== Tips ===== * If you are using CK patch check the page to get some info about it. Then install ''schedtool'' and start using ''schedtool -I'' ! * If you own Macintosh PowerPC computer try adding ''noisapnp'' and ''i8042.nopnp'' to kernel cmdline to suppress some ugly warnings about non-existing device. [[::categoryupdateneeded|CategoryUpdateNeeded]]