Hi; 07 May 2007 Pts tarihinde, Venki Pallipadi şunları yazmıştı: > i386 HPET changes. > > Patchset does the following changes to HPET support: > * Add HPET force detect to ICH chipsets, and detect the > presence of HPET through PCI quirk. > * Enable HPET timer to function in standard interrupt delivery mode, > against the current legacy replacement mode > * Enable HPET as a PER CPU time event, which will help in laptops that > supports C3 and hence has unreliable LAPIC timer. > > The changes enable processors to stay in idle longer, by increasing the > average time spend in an idle state per call, by more than twice, on > my dual core laptop. It reduces the number of interrupts on a totally > idle system, compared to when I use PIT. My machine (SONY VAIO FS-215B) just hangs/freezes (no oops, no MAGIC_SYSRQ) after writing "ACPI: Power Button (CM) [PWRB]" on screen ... Machine check exception polling timer started. apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac) audit: initializing netlink socket (disabled) audit(1178591695.734:1): initialized highmem bounce pool size: 64 pages VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered (default) ACPI: AC Adapter [ADP1] (on-line) ACPI: Battery Slot [BAT0] (battery present) input: Power Button (FF) as /class/input/input0 ACPI: Power Button (FF) [PWRF] input: Lid Switch as /class/input/input1 ACPI: Lid Switch [LID0] input: Power Button (CM) as /class/input/input2 ACPI: Power Button (CM) [PWRB] Normal boot sequence continues with following; ACPI: CPU0 (power states: C1[C1] C2[C2]) ACPI: Processor [CPU0] (supports 8 throttling states) ACPI Exception (processor_core-0783): AE_NOT_FOUND, Processor Device is not present [20070126] ACPI: Thermal Zone [THRM] (98 C) isapnp: Scanning for PnP cards... Time: acpi_pm clocksource has been installed. isapnp: No Plug & Play device found Real Time Clock Driver v1.12ac Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled Clocksource tsc unstable (delta = -490158796 ns) floppy0: no floppy controllers found RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize loop: loaded (max 8 devices) ... System boots fine with hpet=disable and by the way, i tried the first version of this patchset without a problem (if i remembered correctly, it was just force detects the hpet but only enables for x86_64) zangetsu ~ # lspci 00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03) 00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03) 00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d3) 00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge (rev 03) 00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03) 06:03.0 CardBus bridge: Texas Instruments PCI7420 CardBus Controller 06:03.2 FireWire (IEEE 1394): Texas Instruments PCI7x20 1394a-2000 OHCI Two-Port PHY/Link-Layer Controller 06:03.3 Mass storage controller: Texas Instruments PCI7420/7620 Combo CardBus, 1394a-2000 OHCI and SD/MS-Pro Controller 06:04.0 Network controller: Intel Corporation PRO/Wireless 2200BG Network Connection (rev 05) 06:08.0 Ethernet controller: Intel Corporation 82562ET/EZ/GT/GZ - PRO/100 VE (LOM) Ethernet Controller Mobile (rev 03) Cheers -- S.Çağlar Onur <[email protected]> http://cekirdek.pardus.org.tr/~caglar/ Linux is like living in a teepee. No Windows, no Gates and an Apache in house!
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