Re: [Asterisk-Users] Intel Desktop MotherBoards *NOT* Unsuitable for Digium Boards
Forrest W Christian wrote: Someone mentioned IO-APIC in this thread, and it lit up a different part of my brain for me to be able to search around the net and find that at least under CentOS, you have to be running a SMP kernel (even on a UP machine) to be able to get the IO-APIC functionality. This is not true from my experience. I enable IO-APIC in the kernel without enabling SMP and I get IO-APIC. Cheers, Kevin -- Optimacy Communications, LLC http://www.optimacycomm.com ___ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Intel Desktop MotherBoards *NOT* Unsuitable for Digium Boards
Kevin Hanson wrote: Forrest W Christian wrote: Someone mentioned IO-APIC in this thread, and it lit up a different part of my brain for me to be able to search around the net and find that at least under CentOS, you have to be running a SMP kernel (even on a UP machine) to be able to get the IO-APIC functionality. This is not true from my experience. I enable IO-APIC in the kernel without enabling SMP and I get IO-APIC. That depends on how the kernel is built by the distro. ___ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Intel Desktop MotherBoards *NOT* Unsuitable for Digium Boards
Eric ManxPower Wieling wrote: Kevin Hanson wrote: Forrest W Christian wrote: Someone mentioned IO-APIC in this thread, and it lit up a different part of my brain for me to be able to search around the net and find that at least under CentOS, you have to be running a SMP kernel (even on a UP machine) to be able to get the IO-APIC functionality. This is not true from my experience. I enable IO-APIC in the kernel without enabling SMP and I get IO-APIC. That depends on how the kernel is built by the distro. True, but I always recompile the kernel to take out all the stuff I don't needwhich is a lot. Cheers, Kevin ___ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Intel Desktop MotherBoards *NOT* Unsuitable for Digium Boards
Colin Anderson wrote: Forrest: Any secondary effects you can see from running SP on an SMP kernel, any bitching from dmesg at boot? Cool hack. Nope... no other side effects I can tell. Of course, it boots like a SMP kernel (looking at the processor table and all). -forrest ___ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Intel Desktop MotherBoards *NOT* Unsuitable for Digium Boards
George Pajari wrote: To make a long story short, according to Intel Dealer Technical Support (we became Intel dealers in order to get answers to our questions) there is no Intel motherboard that permits the IRQs to be configured uniquely. They are all hardwired and shared. This information applies to both the Intel Desktop Board and Server Board product lines. I have been using a D945GNT with great success, even with shared interrupts. But read on for a solution I just found.. I shared your frustration with not being able to get the interrupts to move to not being shared. What is more frustrating is that I knew with almost certainty that every device had a distinct interrupt line wired into the APIC, and that linux wasn't moving the interrupts off of a single interrupt Or stated differently, I knew, with reasonable certainty, that the hardware of the machine was capable of moving any device to almost any interrupt, but the software wasn't asking the hardware to do so. This functionality is available in almost every reasonably modern intel chipset. My interrupts looked something like this: # cat /proc/interrupts CPU0 0: 1507033453 XT-PIC timer 1:730 XT-PIC i8042 2: 0 XT-PIC cascade 8: 1 XT-PIC rtc 9: 0 XT-PIC acpi, ehci_hcd, uhci_hcd 10:1169132 XT-PIC libata, uhci_hcd 11: 1593809534 XT-PIC eth0, uhci_hcd, uhci_hcd, wct4xxp 12: 66 XT-PIC i8042 NMI: 0 ERR: 0 Didn't matter if I moved the card to a different slot, etc. etc. etc. etc.. Always on interrupt 11. In short, the motherboard was putting everything on interrupt 11 in XT-PIC mode. This was a *software* issue. Someone mentioned IO-APIC in this thread, and it lit up a different part of my brain for me to be able to search around the net and find that at least under CentOS, you have to be running a SMP kernel (even on a UP machine) to be able to get the IO-APIC functionality. Now, with a SMP kernel I get: # cat /proc/interrupts CPU0 0: 55935IO-APIC-edge timer 1: 8IO-APIC-edge i8042 8: 1IO-APIC-edge rtc 9: 0 IO-APIC-level acpi 12: 66IO-APIC-edge i8042 169: 0 IO-APIC-level uhci_hcd 185: 0 IO-APIC-level uhci_hcd 193: 0 IO-APIC-level uhci_hcd 201: 0 IO-APIC-level ehci_hcd, uhci_hcd 209: 17700 IO-APIC-level wct4xxp 217:201 IO-APIC-level eth0 233: 5187 PCI-MSI libata NMI: 0 LOC: 55761 ERR: 0 MIS: 0 Much Better. For reference: Linux 2.6.9-22.0.1.ELsmp #1 SMP Thu Oct 27 13:14:25 CDT 2005 i686 i686 i386 GNU/Linux -forrest ___ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Intel Desktop MotherBoards *NOT* Unsuitable for Digium Boards
Forrest: Any secondary effects you can see from running SP on an SMP kernel, any bitching from dmesg at boot? Cool hack. ___ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
