From: Alexey Fisher <bug-track@fisher-privat.net>
To: alsa-devel@alsa-project.org
Subject: ich10 usb_host vs snd_usb_audio Hercules - irq broadcast.
Date: Thu, 23 Jul 2009 20:00:13 +0200 [thread overview]
Message-ID: <4A68A52D.8050409@fisher-privat.net> (raw)
Hallo,
i found some time to investigate the issue with my "Hercules USB 5.1
Cannel Audio Adapter". The issue is pretty tricky and depend to host
hardware, in my situation this is Intel DG45ID board.
Symptoms are: if i use this sound adapter after some time i'll get:
irq 16: nobody cared ... Disabling IRQ #16. After closer look i found,
it depend on usb port. And if i use one "wrong" usb port on IRQ 18 it
will broadcast interrupts to two IRQs 18 and 16, until IRQ 16 will die.
The problem is... this happens only with this sound card. So this is not
easy to locate bug. And it's working fine on Win Vista and on Mac OS on
same hardware.. so it should be software issue.
Here is a copy of my post on
http://bugzilla.kernel.org/show_bug.cgi?id=13816
If use any usb connector located on irq 18 for usb soundcard it will
cause "irq
16: nobody cared", so every thing connected (usb mouse, keyboard ) to irq 16
will be broken. If i connect devices with less traffic (like mouse or
keyboard)
to irq 18, and usb soundcard to irq 16 or 21 ... every thing will be fine.
irqpoll do not do any difference.
/ irq16|uhci-3 (mouse, keyboard)
irq18|ehci-1- irq21|uhci-4 (sound work fine normal)
\ irq18|uhci-5 (sound will brake uhci-3)
/ irq23|uhci-6 (not used)
irq23|ehci-2- irq19|uhci-7 (not used)
\ irq18|uhci-8 (not used)
=========================================================================
[ 315.056793] irq 16: nobody cared (try booting with the "irqpoll" option)
[ 315.056799] Pid: 0, comm: swapper Not tainted
2.6.31-rc3-00216-gea11951-dirty #98
[ 315.056802] Call Trace:
[ 315.056804] <IRQ> [<ffffffff8109d666>] __report_bad_irq+0x26/0xa0
[ 315.056814] [<ffffffff8109d86c>] note_interrupt+0x18c/0x1d0
[ 315.056819] [<ffffffff8106a373>] ? sched_clock_tick+0x73/0xb0
[ 315.056823] [<ffffffff8109deb5>] handle_fasteoi_irq+0xb5/0xe0
[ 315.056827] [<ffffffff8100dffd>] handle_irq+0x1d/0x30
[ 315.056830] [<ffffffff8100d527>] do_IRQ+0x67/0xe0
[ 315.056834] [<ffffffff8100c013>] ret_from_intr+0x0/0xa
[ 315.056837] <EOI> [<ffffffff812822e1>] ? acpi_idle_enter_bm+0x256/0x288
[ 315.056844] [<ffffffff812822de>] ? acpi_idle_enter_bm+0x253/0x288
[ 315.056849] [<ffffffff813a480b>] ? cpuidle_idle_call+0x9b/0xf0
[ 315.056853] [<ffffffff8100a59c>] ? cpu_idle+0xac/0x100
[ 315.056858] [<ffffffff81496825>] ? rest_init+0x65/0x70
[ 315.056862] [<ffffffff8172ed35>] ? start_kernel+0x3ba/0x3c5
[ 315.056866] [<ffffffff8172e315>] ? x86_64_start_reservations+0x125/0x129
[ 315.056870] [<ffffffff8172e3fd>] ? x86_64_start_kernel+0xe4/0xeb
[ 315.056872] handlers:
[ 315.056874] [<ffffffff8134bdb0>] (usb_hcd_irq+0x0/0x70)
[ 315.056878] Disabling IRQ #16
==================================================================
I did smole script to test haw interrupts are used:
$for i in $(seq 1 1000); do cat /proc/interrupts >> test; sleep 10s; done
$grep usb[3,4,5] test
there is no connections on usb3. on usb4 are keyboard an mouse. on usb5
is the
soundcard.
======================================================================
-------after boot. there is too match interrupts on 16,
-------there is nothing connected.
16: 4276 4520 IO-APIC-fasteoi uhci_hcd:usb3
18: 2732 2598 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 856 816 IO-APIC-fasteoi uhci_hcd:usb4
-------here i begin to play to usb sound card on usb5.
16: 12162 10987 IO-APIC-fasteoi uhci_hcd:usb3
18: 8070 7134 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 887 875 IO-APIC-fasteoi uhci_hcd:usb4
16: 20097 17784 IO-APIC-fasteoi uhci_hcd:usb3
18: 13539 11674 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 1003 958 IO-APIC-fasteoi uhci_hcd:usb4
------- count of interrupts on irq 16 is almost double of irq18
16: 28083 24881 IO-APIC-fasteoi uhci_hcd:usb3
18: 19091 16130 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 1005 968 IO-APIC-fasteoi uhci_hcd:usb4
......
......
16: 94758 81082 IO-APIC-fasteoi uhci_hcd:usb3
18: 61430 53863 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 1389 1539 IO-APIC-fasteoi uhci_hcd:usb4
16: 103141 87919 IO-APIC-fasteoi uhci_hcd:usb3
18: 66678 58625 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 1389 1539 IO-APIC-fasteoi uhci_hcd:usb4
------- irq 16: nobody cared, Disabling IRQ #16.
16: 107840 92161 IO-APIC-fasteoi uhci_hcd:usb3
18: 71854 63458 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 1389 1539 IO-APIC-fasteoi uhci_hcd:usb4
16: 107840 92161 IO-APIC-fasteoi uhci_hcd:usb3
18: 76498 68823 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb5,
uhci_hcd:usb8
21: 1389 1539 IO-APIC-fasteoi uhci_hcd:usb4
next reply other threads:[~2009-07-23 18:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-23 18:00 Alexey Fisher [this message]
2009-07-24 8:52 ` ich10 usb_host vs snd_usb_audio Hercules - irq broadcast Clemens Ladisch
2009-07-24 18:44 ` Alexey Fisher
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