From mboxrd@z Thu Jan 1 00:00:00 1970 From: Uros Prestor Date: Tue, 22 Aug 2000 17:52:04 +0000 Subject: [Linux-ia64] [Fwd: [ia64-dist] Problems with interrupts on 50 Mhz PCI slots.] Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org I am forwarding this question to linux-ia64 in case somebody there has an explanation. Nelson Escobar wrote: > I am running TurboLinux 0714 with the kernel updated to test 4 on a four > CPU Lion system (A3 processors). The bios is build 55. > > I was trying to get a high speed networking card which worked just fine on > the 25 Mhz slots to work on one of the 50 Mhz slots. This is when things > started to get a little weird. > > First, any cards put in those slots ( the pci slots on buses 2-6 ) were > all assigned irq 11. There are also a few PCI Hot-plug controllers also > on IRQ 11. > > Looking at /proc/interrupts revealed some more weirdness: > > 11: 0 none myri/gm > 40: 0 IO-SAPIC-level perfmon > 48: 2395 IO-SAPIC-level qla1280 > 51: 17177 IO-SAPIC-level eth0 > 64: 6 IO-SAPIC-edge ide0 > 65: 4 IO-SAPIC-edge ide1 > 80: 5 IO-SAPIC-edge keyboard > 89: 189 IO-SAPIC-edge PS/2 Mouse > 239: 705213 SAPIC timer > > The myri/gm is the driver for the card i am interested in. > > First I noticed that there were 0 interrupts on IRQ 11, which is false > since i know for a fact that the card generated an interrupt. Then I > noticed the 'none' where I expected to see 'IO-SAPIC-level'. > > So has anyone seen this before? Is this a known problem? > > Nelson Escobar > nelson@myri.com > > _______________________________________________ > ia64-dist mailing list > ia64-dist@turbolinux.com > http://www.turbolinux.com/mailman/listinfo/ia64-dist -- Uros Prestor uros@turbolinux.com