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    SubjectRe: 3.3.0-rc5+git: WARNING: at drivers/gpu/drm/i915/i915_irq.c:652 ironlake_irq_handler+0x4ea/0x500()
    Date
    On wtorek, 6 marca 2012 o 00:59:36 Soeren Sonnenburg wrote:
    > Hi,
    >
    > I am getting this on a i7 system on a DH67BL intel board on current git
    > and wonder whether I should be worried:
    >
    > ------------[ cut here ]------------
    > WARNING: at drivers/gpu/drm/i915/i915_irq.c:652
    > ironlake_irq_handler+0x4ea/0x500() Hardware name:
    > Missed a PM interrupt
    > Modules linked in:
    > Pid: 0, comm: swapper/0 Not tainted 3.3.0-rc5+ #27
    > Call Trace:
    > <IRQ> [<ffffffff810939db>] ? warn_slowpath_common+0x7b/0xc0
    > [<ffffffff81093ad5>] ? warn_slowpath_fmt+0x45/0x50
    > [<ffffffff810ab2c6>] ? queue_work_on+0x16/0x20
    > [<ffffffff81492afa>] ? ironlake_irq_handler+0x4ea/0x500
    > [<ffffffff810ecfea>] ? handle_irq_event_percpu+0x3a/0x140
    > [<ffffffff81099c83>] ? __do_softirq+0xb3/0x130
    > [<ffffffff810ed131>] ? handle_irq_event+0x41/0x70
    > [<ffffffff810f048d>] ? handle_edge_irq+0x6d/0x120
    > [<ffffffff81041ae5>] ? handle_irq+0x15/0x20
    > [<ffffffff81041253>] ? do_IRQ+0x53/0xd0
    > [<ffffffff816cc12e>] ? common_interrupt+0x6e/0x6e
    > <EOI> [<ffffffff816cbb1b>] ? _raw_spin_unlock_irqrestore+0x1b/0x40
    > [<ffffffff813e8737>] ? intel_idle+0xd7/0x150
    > [<ffffffff813e871a>] ? intel_idle+0xba/0x150
    > [<ffffffff815d6873>] ? cpuidle_idle_call+0x93/0xe0
    > [<ffffffff8103f1e9>] ? cpu_idle+0x79/0xe0
    > [<ffffffff81984c12>] ? start_kernel+0x366/0x371
    > [<ffffffff8198444c>] ? x86_64_start_kernel+0x104/0x113
    > ---[ end trace 8b3760a8c69d9501 ]---
    >
    > $ cat /proc/interrupts
    >
    > CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
    > CPU6 CPU7 0: 1801 0 0 0 0
    > 0 0 0 IO-APIC-edge timer 1: 3
    > 0 0 0 0 0 0 0
    > IO-APIC-edge i8042 8: 1 0 0 0
    > 0 0 0 0 IO-APIC-edge rtc0 9:
    > 0 0 0 0 0 0 0
    > 0 IO-APIC-fasteoi acpi 12: 3 0 0
    > 0 0 0 0 0 IO-APIC-edge
    > i8042 16: 215 0 0 0 0
    > 0 0 0 IO-APIC-fasteoi ehci_hcd:usb1 23: 829615563
    > 0 0 0 0 0 0 0
    > IO-APIC-fasteoi ehci_hcd:usb2 40: 0 0 0
    > 0 0 0 0 0 PCI-MSI-edge
    > PCIe PME 41: 0 0 0 0 0
    > 0 0 0 PCI-MSI-edge PCIe PME 42: 4300572
    > 0 0 0 0 0 0 0
    > PCI-MSI-edge i915 43: 51614938 0 0 0
    > 0 0 0 0 PCI-MSI-edge ahci 44:
    > 35008209 0 0 0 0 0 0
    > 0 PCI-MSI-edge eth0 NMI: 0 0 0
    > 0 0 0 0 0 Non-maskable
    > interrupts LOC: 419860182 17318718 22409016 16940072 3696355
    > 2776406 5544045 5374801 Local timer interrupts SPU: 0
    > 0 0 0 0 0 0 0
    > Spurious interrupts PMI: 0 0 0 0
    > 0 0 0 0 Performance monitoring interrupts
    > IWI: 0 0 0 0 0 0
    > 0 0 IRQ work interrupts RTR: 6 0
    > 0 0 0 0 0 0 APIC ICR read
    > retries RES: 15246280 9404003 289674 34811 10270
    > 4717 4437 3644 Rescheduling interrupts CAL: 633
    > 483 481 460 233 236 228 225
    > Function call interrupts TLB: 382928 369632 370463 359784
    > 381885 378229 393943 383276 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: 1677
    > 1677 1677 1677 1677 1677 1677 1677
    > Machine check polls ERR: 0
    > MIS: 0
    >
    > $ lspci
    >
    > 00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev
    > 09) 00:02.0 VGA compatible controller: Intel Corporation Sandy Bridge
    > Integrated Graphics Controller (rev 09) 00:16.0 Communication controller:
    > Intel Corporation Cougar Point HECI Controller #1 (rev 04) 00:19.0
    > Ethernet controller: Intel Corporation 82579V Gigabit Network Connection
    > (rev 05) 00:1a.0 USB Controller: Intel Corporation Cougar Point USB
    > Enhanced Host Controller #2 (rev 05) 00:1b.0 Audio device: Intel
    > Corporation Cougar Point High Definition Audio Controller (rev 05) 00:1c.0
    > PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev
    > b5) 00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root
    > Port 4 (rev b5) 00:1d.0 USB Controller: Intel Corporation Cougar Point USB
    > Enhanced Host Controller #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation
    > Cougar Point LPC Controller (rev 05) 00:1f.2 SATA controller: Intel
    > Corporation Cougar Point 6 port SATA AHCI Controller (rev 05) 00:1f.3
    > SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05) 01:00.0
    > PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev 10)
    > 03:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller
    > (rev 04)

    I created a Bugzilla entry at
    https://bugzilla.kernel.org/show_bug.cgi?id=42907
    for your bug/regression report, please add your address to the CC list in
    there, thanks!


    --
    Maciej Rutecki
    http://www.mrutecki.pl


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