Date: Mon, 15 Jul 2002 21:01:10 -0700 (PDT) From: Joshua Lee <yid@softhome.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/40636: PCI devices don't share IRQs. Message-ID: <200207160401.g6G41A7R015423@www.freebsd.org>
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>Number: 40636 >Category: kern >Synopsis: PCI devices don't share IRQs. >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jul 15 21:10:01 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Joshua Lee >Release: 4.6-STABLE >Organization: Plan B Software Labs >Environment: FreeBSD 4.6-STABLE FreeBSD 4.6-STABLE #1: Mon Jul 15 22:05:16 EDT 2002 yid@: /usr/obj/usr/src/sys/PLANB i386 >Description: My PCI modem, a 3COM/USR Peformance Pro, gets IRQ 9 and the equivalent of COM5 (sio4) when configured during bootup. My built-in USB expansion docking station (uhci1) later in the boot-up process request IRQ 9 and is denied it. >How-To-Repeat: An internel PCI modem gets an IRQ, other hardware requesting that IRQ are denied. >Fix: /usr/src/sys/isa/sio.c Change sioattach() From com->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1, RF_ACTIVE); to com->irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE); My thanks to Matthew Emmerton (matt@gsicomp.on.ca) for the solution. >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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