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Date:      Tue, 9 Apr 2002 11:23:45 +0200 (CEST)
From:      Nick Hibma <n_hibma@van-laarhoven.org>
To:        Cor Bosman <cor@xs4all.net>
Cc:        Cor Bosman <cor@xs4all.nl>, "freebsd-bugs@freebsd.org" <freebsd-bugs@freebsd.org>
Subject:   broadcast storms on USB controllers (Re: USB/SCSI probleem in 4.5-p2 ?)
Message-ID:  <20020409111057.W374-100000@heather.van-laarhoven.org>
In-Reply-To: <20020409105910.A17193@xs4all.nl>

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Could you try the following patch?

heather:root# diff -wu sys/dev/pci/pci.c~ sys/dev/pci/pci.c
--- sys/dev/pci/pci.c~      Sun Jan 13 15:31:21 2002
+++ sys/dev/pci/pci.c       Tue Apr  9 11:19:05 2002
@@ -783,7 +783,7 @@
                        pci_add_map(pcib, b, s, f, q->arg1, rl);
        }

-       if (cfg->intpin > 0 && cfg->intline != 255) {
+       if (cfg->intpin > 0 && cfg->intline != 255 && cfg->intline != 0)
{
 #ifdef __ia64__
                /*
                 * Re-route interrupts on ia64 so that we can get the

This removes the difference between the two functions that decide
whether or not to use an interrupt. I don't know whether this is correct
according to the PCI spec, but it looks incorrect to me to add intline 0
to the resource list for interrupts.

The result of this patch should be that the USB controller is refused
while attaching and hence the interrupt on it is not enabled. This
doesn't make the USB controller work for you, but that problem is on a
totally different scale and not one that I could fix. It should however
make your system boot.

The patch is for a reasonably current CURRENT, so I wouldn't expect more
problems with it than a bit of offset when applying the patch.

Cheers,

Nick


> uhci0: <VIA 83C572 USB controller> port 0xe400-0xe41f irq 0 at device 17.2 on pci0
> pci_cfgintr: can't route an interrupt to 0:17 INTD
> usb0: <VIA 83C572 USB controller> on uhci0
> usb0: USB revision 1.0
> uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> uhub0: 2 ports with 2 removable, self powered
> uhci1: <VIA 83C572 USB controller> port 0xe800-0xe81f at device 17.3 on pci0
> pci_cfgintr: can't route an interrupt to 0:17 INTD
> uhci1: Could not allocate irq
> device_probe_and_attach: uhci1 attach returned 6
> uhci1: <VIA 83C572 USB controller> port 0xec00-0xec1f at device 17.4 on pci0
> pci_cfgintr: can't route an interrupt to 0:17 INTD
> uhci1: Could not allocate irq
> device_probe_and_attach: uhci1 attach returned 6
>
> Cor
>
> >
> > What does the line specifying USB say?
> >
> > Nick
> >
> > On Mon, 8 Apr 2002, Cor Bosman wrote:
> >
> > > During boot of the kernel the system hangs just before probing the SCSI
> > > harddisks:
> > >
> > > APIC_IO: Testing 8254 interrupt delivery
> > > APIC_IO: routing 8254 via IOAPIC #0 intpin 2
> > > IP packet filtering initialized, divert enabled, rule-based forwarding enabled, default to accept, logging limited to 100 packets/entry by default
> > > IP Filter: v3.4.20 initialized.  Default = pass all, Logging = enabled
> > > SMP: AP CPU #1 Launched!
> > > acd0: CDROM <MATSHITA CR-177> at ata0-master using PIO4
> > >
> > > It hangs here.
> > >
> > > If I remove USB support from the kernel things continue just fine.
> > >
> > > Ive read in the archives about problems in 4.4 with the BIOS not assigning
> > > an IRQ to USB. Is this still the case? I need to change BIOS settings
> > > to be able to use SCSI harddisks and USB devices?
> > >
> > > No way to fix this without BIOS changes?
> > >
> > > Regards,
> > >
> > > Cor
> > >
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-bugs" in the body of the message
> > >
> >
> > --
> > n_hibma@van-laarhoven.org                  http://www.van-laarhoven.org/
> > n_hibma@FreeBSD.org                        http://www.etla.net/~n_hibma/
> >
>

-- 
n_hibma@van-laarhoven.org                  http://www.van-laarhoven.org/
n_hibma@FreeBSD.org                        http://www.etla.net/~n_hibma/


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