Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932268AbXA1Ffv (ORCPT ); Sun, 28 Jan 2007 00:35:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932410AbXA1Ffv (ORCPT ); Sun, 28 Jan 2007 00:35:51 -0500 Received: from nf-out-0910.google.com ([64.233.182.190]:44769 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932268AbXA1Ffu (ORCPT ); Sun, 28 Jan 2007 00:35:50 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:mime-version:content-type:content-transfer-encoding:content-disposition; b=VFbSpOhPZimymdihl05LPWmx+CMPhZBH6u7v//4EJ+ZN3Wp4PMtf7bPPZ7JpjS4ADnNisI8vyVDGzYP6NuU3Ak0oSSTZsCprpBQXFu4c7L2ryR1hseBb8JJJIWMCRxFYw2jVBiSFs1sQJGqPNOcF5FolvfuZF26wEYnK3EI99h4= Message-ID: <8355959a0701272135p150bb95dkf62dbfc07c0cdccc@mail.gmail.com> Date: Sun, 28 Jan 2007 11:05:48 +0530 From: "Sunil Naidu" To: "Ingo Molnar" Subject: 2.6.20-rc6-rt2 - SMP/x86 -- questions about .config selection Cc: "Linux kernel mailing list" MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3048 Lines: 93 Hi Ingo, I did boot with (almost) no problems. Here is ps ax info:- PID TTY STAT TIME COMMAND 1 ? Ss 0:00 init [5] 2 ? S 0:00 [migration/0] 3 ? S 0:00 [posix_cpu_timer] 4 ? S 0:00 [softirq-high/0] 5 ? S 0:00 [softirq-timer/0] 6 ? S 0:00 [softirq-net-tx/] 7 ? S 0:00 [softirq-net-rx/] 8 ? S 0:00 [softirq-block/0] 9 ? S 0:00 [softirq-tasklet] 10 ? S 0:00 [softirq-sched/0] 11 ? S 0:00 [softirq-hrtimer] 12 ? S 0:00 [softirq-rcu/0] 13 ? S< 0:00 [desched/0] 14 ? S 0:00 [migration/1] 15 ? S 0:00 [posix_cpu_timer] 16 ? S 0:00 [softirq-high/1] 17 ? S 0:00 [softirq-timer/1] 18 ? S 0:00 [softirq-net-tx/] 19 ? S 0:00 [softirq-net-rx/] 20 ? S 0:00 [softirq-block/1] 21 ? S 0:00 [softirq-tasklet] 22 ? S 0:00 [softirq-sched/1] 23 ? S 0:00 [softirq-hrtimer] 24 ? S 0:00 [softirq-rcu/1] ......... ......... Here is the interrupt info:- CPU0 CPU1 0: 354 0 IO-APIC-edge timer 1: 361 0 IO-APIC-edge i8042 8: 1 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-fasteoi acpi 12: 7 0 IO-APIC-edge i8042 14: 1985 0 IO-APIC-edge ide0 16: 13042 0 IO-APIC-fasteoi uhci_hcd:usb4, HDA Intel, i915@pci:0000:00:02.0 18: 0 0 IO-APIC-fasteoi uhci_hcd:usb3 19: 11520 0 IO-APIC-fasteoi uhci_hcd:usb2, libata 20: 2 0 IO-APIC-fasteoi uhci_hcd:usb1, ehci_hcd:usb5 21: 515 0 IO-APIC-fasteoi eth0 NMI: 0 0 LOC: 23573 24545 ERR: 0 MIS: 0 I did get REMINDER, the following debugging options are turned on in your .config: CONFIG_CRITICAL_IRQSOFF_TIMING CONFIG_FUNCTION_TRACE This I have understood, no issues here. There is some confusion for me while configuring a rt kernel & proceeding for experiments. I did choose the following:- NO_HZ=y HIGH_RES_TIMERS=y SMP=y PREEMPT_VOLUNTARY=y PREEMPT_SOFTIRQS=y PREEMPT_HARDIRQS=y SPINLOCK_BKL=y CLASSIC_RCU=y SCHED_SMT=y IRQBALANCE=y HZ_1000=y #1 Is this correct to say PREEMPT_VOLUNTARY=y for rt on this desktop PC? #2 I am not clear about IRQ config selection (which one should be enable/disable for a PC, I did select all as shown in the above config). Any suggestion? #3 Any other parameter(s) I need to enable/disable to get better results? (did disable APM) Thanks, ~Su37 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/