On 10/8/07, Gustin Johnson <gustin@xxxxxxxxxxx> wrote:
>
> What version of Ubuntu
Well, its a kubuntu. Not 100% sure about the version.
> and what kernel version are you running?
mogul@linuxine:/etc$ uname -vr
2.6.20-16-generic #2 SMP Sun Sep 23 19:50:39 UTC 2007
> It does
> not look like your kernel is doing any IRQ balancing at all. I had a
> similar problem on my dual core laptop, but this was a while ago.
What did you do to fix it?
> While
> we are at it, cat /proc/cpuinfo for me as well.
mogul@linuxine:/etc$ cat /proc/interrupts
CPU0 CPU1
0: 40108328 0 IO-APIC-edge timer
1: 66770 0 IO-APIC-edge i8042
6: 5 0 IO-APIC-edge floppy
7: 0 0 IO-APIC-edge parport0
8: 28 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-fasteoi acpi
12: 18028 348300 IO-APIC-edge i8042
14: 249 0 IO-APIC-edge ide0
15: 170 0 IO-APIC-edge ide1
18: 47729860 39835622 IO-APIC-fasteoi uhci_hcd:usb1, eth0
19: 34 0 IO-APIC-fasteoi uhci_hcd:usb2
20: 1204 0 IO-APIC-fasteoi uhci_hcd:usb3, libata,
ehci_hcd:usb5
21: 23287449 0 IO-APIC-fasteoi uhci_hcd:usb4
22: 0 0 IO-APIC-fasteoi libata
23: 0 0 IO-APIC-fasteoi libata
24: 23287893 0 IO-APIC-fasteoi nvidia
25: 6677 0 IO-APIC-fasteoi Ensoniq AudioPCI
NMI: 0 0
LOC: 40104940 40107899
ERR: 0
MIS: 0
> Also, if you are not using them, you should be able to disable the
> onboard sound card in the bios, along with the parallel port and the
> floppy controller.
Crappy motherboard, no can do :-(
/Morten %-)
> Morten Guldager wrote:
> > On 10/7/07, Bill Unruh <unruh@xxxxxxxxxxxxxx> wrote:
> >> On Sun, 7 Oct 2007, Morten Guldager wrote:
> >>
> >>> On 10/7/07, Rene Herman <rene.herman@xxxxxxxxxxxx> wrote:
> >>>> On 10/06/2007 07:43 PM, Morten Guldager wrote:
> >>>>
> >>>>> On my kubuntu system the soundcard, soon or later, refuses to play
> >>>>> anything but the first approx. 0.1 second of the sample repeated over and
> >>>>> over again.
> >>>> That sounds like the IRQ stops firing.
> >>> Funny thing, I have seen the same behavior on my mom's windows thing.
> >>> It was a interrupt problem...
> >>>
> >>> I have noticed that when the sound is broken, the interrupts does not
> >>> count any longer too.
> >> I assume you mean that /proc/interrupts entry does not increase anymore.
> >
> > Exactly!
> >> So
> >> Yes, it certainly sounds like the interrupts are broken. Whether this is
> >> something in the sound card driver, or a hardware fault on your machine is
> >> hard to say. What happens if you unload and then reload the sound card
> >> driver, instead of rebooting.
> >
> > I have tried that. I have rmmod'ed the whole stack of sound modules
> > and insmod'ed them all again. That did not make the sound working
> > again.
> >
> >> By rebooting do you mean switch off the power to the computer, or just a
> >> software reboot?
> >
> > A software reboot is enough.
> >
> >>>>> To fix this situation its not enough simply to logout and in again, I
> >>>>> have to reboot the system.
> >>>> Is it a pattern where the first time takes long, and than it happens faster
> >>>> each time? If so, I'd start suspecting heat.
> >>> Don't think so. The machine runs 24/7. No powercycles, just a simple
> >>> reboot now and then. (to get that darn music back. My old machine ran
> >>> for years without other reboots than kernel upgrades. Even my
> >>> girlfriends windows2000 runs more stable!)
> >> Well, sound is hardly a kernel crash or instability.
> >
> > True. But I do reboot more often then she does. And she bugs me on that account.
> >
> >>>>> I have tried an other soundcard, but that did not help.
> >> What do you mean "that does not help"? You removed this soundcard and
> >> installed a totally different brand of soundcard? You left this one in and
> >> used some other eg onboard soundcard?
> >
> > I started using the onboard thing. That were unstable, so I installed
> > an old one instead. Ofcourse I cannot unplug the on-motherbard
> > "soundcard".
> >
> >>>> I see. That certainly points to a system global problem and not so much one
> >>>> with alsa specifically. Is the slot/card on a shared IRQ with something
> >>>> else, and if so, are you able to correlate some action on/from that other
> >>>> device and your sound crapping out?
> >>> Initially I used the sound system on the motherboard, now its a PCI thing.
> >> You had the same problem with both?
> >
> > Oh yes :-(
> >
> >>> mogul@linuxine:/proc/asound$ cat cards
> >>> 0 [AudioPCI ]: ENS1371 - Ensoniq AudioPCI
> >>> Ensoniq AudioPCI ENS1371 at 0xac00, irq 25
> >>>
> >>> Here is the interrupt list:
> >>>
> >>> mogul@linuxine:~$ cat /proc/interrupts
> >>> CPU0 CPU1
> >>> 0: 41848540 0 IO-APIC-edge timer
> >>> 1: 93805 0 IO-APIC-edge i8042
> >>> 6: 5 0 IO-APIC-edge floppy
> >>> 7: 0 0 IO-APIC-edge parport0
> >>> 8: 23 0 IO-APIC-edge rtc
> >>> 9: 0 0 IO-APIC-fasteoi acpi
> >>> 12: 614137 0 IO-APIC-edge i8042
> >>> 14: 237512 0 IO-APIC-edge ide0
> >>> 15: 551212 1956428 IO-APIC-edge ide1
> >>> 18: 697954 0 IO-APIC-fasteoi uhci_hcd:usb1, eth0
> >>> 19: 30 0 IO-APIC-fasteoi uhci_hcd:usb2
> >>> 20: 1209 0 IO-APIC-fasteoi uhci_hcd:usb3, libata,
> >>> ehci_hcd:usb5
> >>> 21: 100001 0 IO-APIC-fasteoi uhci_hcd:usb4
> >>> 22: 0 0 IO-APIC-fasteoi libata
> >>> 23: 0 0 IO-APIC-fasteoi libata
> >>> 24: 24429478 0 IO-APIC-fasteoi nvidia
> >>> 25: 2500176 0 IO-APIC-fasteoi Ensoniq AudioPCI
> >>> NMI: 0 0
> >>> LOC: 41844808 41846704
> >>> ERR: 0
> >>> MIS: 0
> >>>
> >>> Looks like irq25, and alone there.
> >>>
> >>>>> Synaptic told me that alsa-base is version 1.0.13-3
> >>>>> The system is a Intel dual-core thing, if that does matter.
> >>>>> How do I debug this? What do you need to know to help me here?
> >> You could of course try alsa 1.0.15 instead. Make sure you have your
> >> kernel-source installed in /usr/src for your current kernel, and have gcc
> >> installed, download the alsa-drvers go into the directory and do
> >> ./configure
> >> make
> >> make install
> >>
> >> which should install the new drivers.
> >
> > But if I do have an interrupt problem in the machine, then I won't fix
> > anything with a new alsa, wouldt I?
> >
> > I found a few of these in /var/log/messages:
> >
> > Oct 1 20:13:48 linuxine kernel: [ 720.753330]
> > [__report_bad_irq+36/128] __report_bad_irq+0x24/0x80
> > Oct 1 20:13:48 linuxine kernel: [ 720.753354]
> > [note_interrupt+606/656] note_interrupt+0x25e/0x290
> > Oct 1 20:13:48 linuxine kernel: [ 720.753378] [<f888af32>]
> > usb_hcd_irq+0x22/0x60 [usbcore]
> > Oct 1 20:13:48 linuxine kernel: [ 720.753405]
> > [handle_IRQ_event+48/96] handle_IRQ_event+0x30/0x60
> > Oct 1 20:13:48 linuxine kernel: [ 720.753422]
> > [handle_fasteoi_irq+193/240] handle_fasteoi_irq+0xc1/0xf0
> > Oct 1 20:13:48 linuxine kernel: [ 720.753440] [do_IRQ+64/128]
> > do_IRQ+0x40/0x80
> > Oct 1 20:13:48 linuxine kernel: [ 720.753459]
> > [common_interrupt+35/48] common_interrupt+0x23/0x30
> > Oct 1 20:13:48 linuxine kernel: [ 720.753496] [__do_softirq+91/256]
> > __do_softirq+0x5b/0x100
> > Oct 1 20:13:48 linuxine kernel: [ 720.753524] [do_softirq+85/96]
> > do_softirq+0x55/0x60
> > Oct 1 20:13:48 linuxine kernel: [ 720.753533] [do_IRQ+69/128]
> > do_IRQ+0x45/0x80
> > Oct 1 20:13:48 linuxine kernel: [ 720.753552]
> > [common_interrupt+35/48] common_interrupt+0x23/0x30
> > Oct 1 20:13:48 linuxine kernel: [ 720.753587]
> > [mwait_idle_with_hints+70/96] mwait_idle_with_hints+0x46/0x60
> > Oct 1 20:13:48 linuxine kernel: [ 720.753607] [cpu_idle+73/208]
> > cpu_idle+0x49/0xd0
> > Oct 1 20:13:48 linuxine kernel: [ 720.753621]
> > [start_kernel+869/1056] start_kernel+0x365/0x420
> > Oct 1 20:13:48 linuxine kernel: [ 720.753631]
> > [unknown_bootoption+0/608] unknown_bootoption+0x0/0x260
> > Oct 1 20:13:48 linuxine kernel: [ 720.753665] =======================
> >
> > I don't understand much, but it looks like something with interrupts too.
> >
> > At the moment I am trying the "irqpoll" kernel option... time will show then.
--
/Morten %-)
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