Intel DZ77BH-55K, iTE IT8892 interrupt misrouting (was Re: [Bug47191] New: Firewire related BUG in kernels 3.3.7 and up on Intel HW.)

From: Stefan Richter
Date: Fri Sep 07 2012 - 10:41:45 EST

(Please use reply-to-all in responses.)

On Sep 07 bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=47191
>
> Summary: Firewire related BUG in kernels 3.3.7 and up on Intel
> HW.
> Product: Drivers
> Version: 2.5
> Kernel Version: 3.3.7+
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: IEEE1394
> AssignedTo: drivers_ieee1394@xxxxxxxxxxxxxxxxxxxx

As implied in thread "Firewire related problems with 3.3.7+ kernels." on
linux1394-user (http://marc.info/?t=134651740400005), this is not an
IEEE1394 driver bug.

Can the kernel do anything about that at all?

> ReportedBy: barz621@xxxxxxxxx
> Regression: No
>
>
> Created an attachment (id=79431)
> --> (https://bugzilla.kernel.org/attachment.cgi?id=79431)
> lspci -vvv Output

The 1394 OHCI is located behind this bridge:
03:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev 30)


> Since i installed linux on an Intel DZ77BH-55K i get the below message in my
> logs on every boot. (It might also be a problem with earlier kernels but 3.3.7
> was the first i installed on this machine.)
>
> [ 3.021058] irq 16: nobody cared (try booting with the "irqpoll" option)
> [ 3.021111] Pid: 0, comm: swapper/0 Not tainted 3.5.3-1-ARCH #1
> [ 3.021112] Call Trace:
> [ 3.021113] <IRQ> [<ffffffff810d4d3d>] __report_bad_irq+0x3d/0xe0
> [ 3.021118] [<ffffffff810d5033>] note_interrupt+0x1a3/0x1f0
> [ 3.021120] [<ffffffff810d292f>] handle_irq_event_percpu+0xbf/0x260
> [ 3.021122] [<ffffffff810d2b18>] handle_irq_event+0x48/0x70
> [ 3.021123] [<ffffffff810d5b4a>] handle_fasteoi_irq+0x5a/0x100
> [ 3.021125] [<ffffffff810160c2>] handle_irq+0x22/0x40
> [ 3.021128] [<ffffffff81484cea>] do_IRQ+0x5a/0xe0
> [ 3.021129] [<ffffffff8147c12a>] common_interrupt+0x6a/0x6a
> [ 3.021130] <EOI> [<ffffffffa02b3f01>] ? acpi_idle_enter_c1+0xda/0x104 [processor]
> [ 3.021142] [<ffffffffa02b3edc>] ? acpi_idle_enter_c1+0xb5/0x104 [processor]
> [ 3.021145] [<ffffffff8134f159>] cpuidle_enter+0x19/0x20
> [ 3.021147] [<ffffffff8134f7a6>] cpuidle_idle_call+0xa6/0x330
> [ 3.021148] [<ffffffff8101daaf>] cpu_idle+0xbf/0x130
> [ 3.021151] [<ffffffff81456fbc>] rest_init+0x80/0x84
> [ 3.021153] [<ffffffff818bbc35>] start_kernel+0x3c1/0x3ce
> [ 3.021154] [<ffffffff818bb673>] ? repair_env_string+0x5e/0x5e
> [ 3.021156] [<ffffffff818bb356>] x86_64_start_reservations+0x131/0x135
> [ 3.021157] [<ffffffff818bb45a>] x86_64_start_kernel+0x100/0x10f
> [ 3.021158] handlers:
> [ 3.021168] [<ffffffffa01eb0b0>] usb_hcd_irq [usbcore]
> [ 3.021185] Disabling IRQ #16
>
> When i disable Firewire from the BIOS the message goes away. After a question
> in the ieee1394 users mailing list the problem was specified to be a misrouted
> interrupt. Upgrading the BIOS caused problems with UEFI (i downgraded but
> doesn't matter for this) but you could still see the message when booting.
>
> kernel drivers:
>
> firewire_ohci 31653 0
> firewire_core 52733 1 firewire_ohci
> crc_itu_t 1363 1 firewire_core
>
> Attached you will find lspci -vvv
>
> /proc/interupts :
>
> CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
> 0: 51 0 0 0 0 0 0 0 IR-IO-APIC-edge timer
> 1: 3 0 0 0 0 0 0 0 IR-IO-APIC-edge i8042
> 8: 66 0 0 0 0 0 0 0 IR-IO-APIC-edge rtc0
> 9: 0 0 0 0 0 0 0 0 IR-IO-APIC-fasteoi acpi
> 12: 4 0 0 0 0 0 0 0 IR-IO-APIC-edge i8042
> 16: 100001 0 0 0 0 0 0 0 IR-IO-APIC-fasteoi ehci_hcd:usb5
> 18: 0 0 0 0 0 0 0 0 IR-IO-APIC-fasteoi firewire_ohci
> 23: 45 0 0 0 0 0 0 0 IR-IO-APIC-fasteoi ehci_hcd:usb6
> 40: 0 0 0 0 0 0 0 0 DMAR_MSI-edge dmar0
> 42: 1473002 0 0 0 0 0 0 0 IR-PCI-MSI-edge radeon
> 43: 67067 0 0 0 0 0 0 0 IR-PCI-MSI-edge ahci
> 44: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge ahci
> 45: 6584 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 46: 364368 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 47: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 48: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 49: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 50: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 51: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 52: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 53: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge xhci_hcd
> 54: 15 0 0 0 0 0 0 0 IR-PCI-MSI-edge mei
> 55: 823643 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth0
> 56: 598 0 0 0 0 0 0 0 IR-PCI-MSI-edge snd_hda_intel
> 57: 245 0 0 0 0 0 0 0 IR-PCI-MSI-edge snd_hda_intel
> NMI: 830 954 687 816 38 50 42 54 Non-maskable interrupts
> LOC: 981830 617630 700773 594284 135468 138509 276879 148838 Local timer interrupts
> SPU: 0 0 0 0 0 0 0 0 Spurious interrupts
> PMI: 830 954 687 816 38 50 42 54 Performance monitoring interrupts
> IWI: 0 0 0 0 0 0 0 0 IRQ work interrupts
> RTR: 0 0 0 0 0 0 0 0 APIC ICR read retries
> RES: 536900 183838 26144 4632 399 291 6187 265 Rescheduling interrupts
> CAL: 10532 39027 41167 41149 40550 42333 42284 39389 Function call interrupts
> TLB: 104550 110486 103530 94268 12725 14161 12829 16951 TLB shootdowns
> TRM: 0 0 0 0 0 0 0 0 Thermal event interrupts
> THR: 0 0 0 0 0 0 0 0 Threshold APIC interrupts
> MCE: 0 0 0 0 0 0 0 0 Machine check exceptions
> MCP: 87 87 87 87 87 87 87 87 Machine check polls
> ERR: 0
>

--
Stefan Richter
-=====-===-- =--= --===
http://arcgraph.de/sr/
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