22 Jan
2008
22 Jan
'08
3:04 p.m.
On Tue, 2008-01-22 at 19:36 +0100, Florent Berthaut wrote:
Fernando Lopez-Lezcano a écrit :
A more basic question... what parameters are you using when you start
jackd?
-- Fernando
On Tue, 2008-01-22 at 13:29 +0100,
hitmuri(a)no-log.org wrote:
cat /proc/interrupts gives me this :
CPU0 CPU1
0: 89731 89923 IO-APIC-edge timer
1: 151 113 IO-APIC-edge i8042
8: 0 0 IO-APIC-edge rtc0
9: 12 11 IO-APIC-fasteoi acpi
12: 42277 41891 IO-APIC-edge i8042
14: 7056 7085 IO-APIC-edge libata
15: 1376 2002 IO-APIC-edge libata
16: 11532 11641 IO-APIC-fasteoi uhci_hcd:usb3, nvidia
18: 0 0 IO-APIC-fasteoi yenta
19: 18782 18903 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb7
20: 8615 8284 IO-APIC-fasteoi ehci_hcd:usb2,
uhci_hcd:usb5
21: 1 2 IO-APIC-fasteoi uhci_hcd:usb4, ohci1394
22: 0 0 IO-APIC-fasteoi uhci_hcd:usb6
23: 0 0 IO-APIC-fasteoi sdhci:slot0
220: 18041 18081 PCI-MSI-edge eth0
NMI: 0 0
LOC: 92078 94169
ERR: 0
MIS: 0
Actually the usb controller on which my soundcard is (IRQ 20) isn"t
shared with the graphics controller.
So i tried to set the priorities of the other irq so that the usb
controller with my soundcard gets the highest priority
I get this with /etc/init.d/rtirq status :
1047 FF 95 - 135 0.0 S< IRQ-8 rtc0
417 FF 88 - 128 0.6 S< IRQ-20 ehci_hcd:usb2,
uhci_hcd:usb5
425 FF 87 - 127 0.0 S< IRQ-21 uhci_hcd:usb4,
ohci1394
426 FF 86 - 126 0.0 S< IRQ-22 uhci_hcd:usb6
5 FF 50 - 90 0.0 S< softirq-high/0
6 FF 50 - 90 0.1 S< softirq-timer/0
7 FF 50 - 90 0.0 S< softirq-net-tx/
8 FF 50 - 90 0.0 S< softirq-net-rx/
9 FF 50 - 90 0.0 S< softirq-block/0
10 FF 50 - 90 0.3 S< softirq-tasklet
11 FF 50 - 90 0.0 S< softirq-sched/0
12 FF 50 - 90 0.0 S< softirq-hrtimer
13 FF 50 - 90 0.0 S< softirq-rcu/0
18 FF 50 - 90 0.0 S< softirq-high/1
19 FF 50 - 90 0.0 S< softirq-timer/1
20 FF 50 - 90 0.0 S< softirq-net-tx/
21 FF 50 - 90 0.0 S< softirq-net-rx/
22 FF 50 - 90 0.0 S< softirq-block/1
23 FF 50 - 90 0.0 S< softirq-tasklet
24 FF 50 - 90 0.0 S< softirq-sched/1
25 FF 50 - 90 0.0 S< softirq-hrtimer
26 FF 50 - 90 0.0 S< softirq-rcu/1
78 FF 50 - 90 0.0 S< IRQ-9 acpi
388 FF 50 - 90 0.0 S< IRQ-18 yenta
394 FF 50 - 90 0.1 S< IRQ-12 i8042
395 FF 50 - 90 0.0 S< IRQ-1 i8042
454 FF 50 - 90 0.1 S< IRQ-14 libata
455 FF 50 - 90 0.0 S< IRQ-15 libata
1032 FF 50 - 90 0.3 S< IRQ-220 PCI-MSI-edge eth0
1093 FF 50 - 90 0.0 S< IRQ-23 sdhci:slot0
416 FF 35 - 75 0.1 S< IRQ-19 ehci_hcd:usb1,
uhci_hcd:usb7
424 FF 35 - 75 0.3 S< IRQ-16 uhci_hcd:usb3, nvidia
But it doesn't make any changes, still xruns. Thanks for answering (maybe i could have asked on
the linuxmao.org forum
too ;) ) .
I tried to change the rtirq script but it doesn't seem to make any
difference. But while looking at the rt priorities, i noticed that the
highest priority for usb was given to the irq 16 and cat /proc/interrupts
tells me that on irq 16 there's uhci_hcd:usb3 and NVIDIA !!!
When i plug my usb soundcard , it's always on irq 20.
So it looks like the highest priority is given to the graphics card .
Because it shares the interrupt with the usb controller which may have
an audio card attached...
What do you see in "cat /proc/interrupts" for other interrupts? Do you
perhaps have another usb controller that does not share an interrupt
with the graphics controller?