23 Mar
2008
23 Mar
'08
3:21 p.m.
Nathanael Anderson wrote:
I'm hoping I'll be able to find someone else
with a similar setup that
has overcome their problems to get realtime operation, at least in one
direction, with no xruns.
(edit)
cat /proc/interrupts
CPU0 CPU1
0: 20489426 0 XT-PIC-XT timer
1: 14552 0 XT-PIC-XT i8042
2: 0 0 XT-PIC-XT cascade
5: 0 0 XT-PIC-XT uhci_hcd:usb4
7: 2008 0 XT-PIC-XT ipw3945
8: 2 0 XT-PIC-XT rtc
9: 2930465 0 XT-PIC-XT acpi, uhci_hcd:usb3,
nvidia
10: 269 0 XT-PIC-XT
uhci_hcd:usb1,
ehci_hcd:usb5
11: 1627576 0 XT-PIC-XT
uhci_hcd:usb2, HDA Intel
12: 16281 0 XT-PIC-XT i8042
14: 60131 0 XT-PIC-XT libata
15: 64207 0 XT-PIC-XT libata
218: 1624641 0 PCI-MSI-edge eth0
NMI: 0 0 Non-maskable interrupts
LOC: 5672972 14563710 Local timer interrupts
RES: 9766464 13228888 Rescheduling interrupts
CAL: 46404 41727 function call interrupts
TLB: 21123 35433 TLB shootdowns
TRM: 0 0 Thermal event interrupts
SPU: 0 0 Spurious interrupts
ERR: 0
MIS: 0
the most obvious problem here is that your intel hda is sharing its
interrupt with usb2.
try booting with noapic appended to the kernel line in your bootloader
menu and see if that makes a difference. (it did on my box)
Setup:
Dell M90 (intel-hda audio)
Kernel 2.6.24 RT PREMPT SMP from gentoo pro-audio feed
quadro 1500fx with nvidia driver (i'd really like to keep this driver,
unless compiz works now with the nv driver)
i have the notion that the nvidia binary driver doesnt work too well
with RT. others here may be able to confirm that or otherwise
checkout: http://tapas.affenbande.org/wordpress/ for excellent info on
RT setup and also:
http://irc.esben-stien.name/mediawiki/index.php/Setting_Up_Real_Time_Operat…
hope the above was of some use, report back,
cheers G.