On Mon, 16 Jan 2006, Reuben Farrelly wrote: > On 13/01/2006 4:53 a.m., Alan Stern wrote: > > On Thu, 12 Jan 2006, Reuben Farrelly wrote: > > > >>>> Initializing USB Mass Storage driver... > >>>> irq 193: nobody cared (try booting with the "irqpoll" option) > > > >>>> handlers: > >>>> [<c027017e>] (usb_hcd_irq+0x0/0x56) > >>>> Disabling IRQ #193 > >>> USB lost its interrupt. Could be USB, more likely ACPI. > >> I've seen this one happen nearly every boot since then including bootups > >> that > >> are otherwise OK (no oopses), so it's probably worth more looking into > >> rather > >> than being written off as a 'once off': > >> > >> uhci_hcd 0000:00:1d.3: Unlink after no-IRQ? Controller is probably using > >> the > >> wrong IRQ.
Note the PCI ID is 1d.3 and the IRQ is 193. > Hi Alan, > > If it's any use, here's some simply and easy-to-get information which may > even > be what you are looking for: > > [EMAIL PROTECTED] dovecot]# uname -a > Linux tornado.reub.net 2.6.15-mm1 #1 SMP Sun Jan 8 03:42:25 NZDT 2006 i686 > i686 > i386 GNU/Linux > [EMAIL PROTECTED] ~]# cat /proc/interrupts > CPU0 CPU1 > 0: 21638510 0 IO-APIC-edge timer > 4: 356 0 IO-APIC-edge serial > 8: 1 0 IO-APIC-edge rtc > 9: 0 0 IO-APIC-level acpi > 14: 1 0 IO-APIC-edge ide0 > 50: 3 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2 > 169: 120 0 IO-APIC-level uhci_hcd:usb5 > 177: 2837992 0 IO-APIC-level sky2 > 185: 61450 0 IO-APIC-level uhci_hcd:usb4, serial > 193: 4722447 0 IO-APIC-level libata, uhci_hcd:usb3 Note that in the earlier kernel, IRQ 193 is assigned to usb3. That's the second UHCI controller, since usb1 is EHCI. > [EMAIL PROTECTED] ~]# lspci > 00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) > USB UHCI #1 (rev 03) > 00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) > USB UHCI #2 (rev 03) > 00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) > USB UHCI #3 (rev 03) > 00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) > USB UHCI #4 (rev 03) > 00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) > USB2 EHCI Controller (rev 03) Note that 1d.3 is the fourth UHCI controller; the second is 1d.1. > I guess this looks like it was assigned the same IRQ ? I don't think so. To be certain you'd have to check the boot-up log and verify that 1d.1 is usb3 and 1d.3 is usb5. >From the information presented here, it looks like -mm1 correctly routes the 1d.1 controller to IRQ 193 and the 1d.3 controller to IRQ 169, whereas -mm3 incorrectly routes the 1d.3 controller to IRQ 193. That would make it an ACPI problem. Alan Stern ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
