http://bugs.freedesktop.org/show_bug.cgi?id=18609
Will Woods <[EMAIL PROTECTED]> changed:
What |Removed |Added
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CC| |[EMAIL PROTECTED]
--- Comment #5 from Will Woods <[EMAIL PROTECTED]> 2008-11-18 17:31:01 PST ---
That patch doesn't help on my system, unfortunately.
Background: this is a Cantiga (8086:2a42 (rev 03)) chipset machine, running
Fedora kernel-2.6.27.5-119.fc10.x86_64, which includes the patch you listed:
http://cvs.fedoraproject.org/viewvc/rpms/kernel/F-10/drm-next-intel-irq-test.patch
Shortly after starting X, something causes it to freak out (xrandr mode switch
or VT switch seem to trigger it pretty good) and start generating ridiculous
number of interrupts. The kernel then has to disable the card's IRQ.
Watching /proc/dri/0/i915_gem_interrupt etc. show that it's generating
something like 60,000 interrupts per second:
[EMAIL PROTECTED] ~]$ while true; do grep 'Interrupts'
/proc/dri/0/i915_gem_interrupt ; sleep 1; done
Interrupts received: 14635063
Interrupts received: 14697264
Interrupts received: 14754781
(etc.)
Kernel trace looks like this:
irq 16: nobody cared (try booting with the "irqpoll" option)
Pid: 0, comm: swapper Not tainted 2.6.27.5-118.fc10.x86_64 #1
Call Trace:
<IRQ> [<ffffffff81083207>] __report_bad_irq+0x38/0x7c
[<ffffffff81083453>] note_interrupt+0x208/0x26d
[<ffffffff81083b80>] handle_fasteoi_irq+0xbb/0xeb
[<ffffffff8101309e>] do_IRQ+0xf7/0x169
[<ffffffff81010933>] ret_from_intr+0x0/0x2e
<EOI> [<ffffffff8105e59d>] ? tick_nohz_stop_sched_tick+0x2ec/0x301
[<ffffffff8100f1f1>] ? cpu_idle+0x2a/0x10b
[<ffffffff8131ed7d>] ? rest_init+0x61/0x63
handlers:
[<ffffffff8123ae36>] (usb_hcd_irq+0x0/0xb3)
[<ffffffff8123ae36>] (usb_hcd_irq+0x0/0xb3)
[<ffffffffa0090334>] (e1000_intr+0x0/0x13b [e1000e])
Disabling IRQ #16
irq 16: nobody cared (try booting with the "irqpoll" option)
Pid: 0, comm: swapper Not tainted 2.6.27.5-118.fc10.x86_64 #1
Call Trace:
<IRQ> [<ffffffff81083207>] __report_bad_irq+0x38/0x7c
[<ffffffff81083453>] note_interrupt+0x208/0x26d
[<ffffffff81083b80>] handle_fasteoi_irq+0xbb/0xeb
[<ffffffff8101309e>] do_IRQ+0xf7/0x169
[<ffffffff81010933>] ret_from_intr+0x0/0x2e
<EOI> [<ffffffff8103e2ae>] ? finish_task_switch+0x39/0xc9
[<ffffffff8103e2a6>] ? finish_task_switch+0x31/0xc9
[<ffffffff813304a0>] ? thread_return+0x3d/0xd9
[<ffffffff8105e814>] ? tick_nohz_restart_sched_tick+0x171/0x179
[<ffffffff8100f2cd>] ? cpu_idle+0x106/0x10b
[<ffffffff8131ed7d>] ? rest_init+0x61/0x63
handlers:
[<ffffffff8123ae36>] (usb_hcd_irq+0x0/0xb3)
[<ffffffff8123ae36>] (usb_hcd_irq+0x0/0xb3)
[<ffffffffa0090334>] (e1000_intr+0x0/0x13b [e1000e])
[<ffffffffa02ac455>] (i915_driver_irq_handler+0x0/0x1a7 [i915])
Disabling IRQ #16
So, yeah. Not fixed.
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