[PlanetCCRMA] FC5 xruns

[Link Swanson]

On Mon, May 29, 2006 3:27 pm, Fernando Lopez-Lezcano wrote:
> On Mon, 2006-05-29 at 15:08 -0500, Link Swanson wrote:
>> On Mon, May 29, 2006 1:37 pm, Fernando Lopez-Lezcano wrote:
>> > On Mon, 2006-05-29 at 13:20 -0500, Link Swanson wrote:
>> >> I recently upgraded a my FC4 CCRMA system, which ran free of xruns,
>> to
>> >> FC5, and now I get loads of xruns when running jack.
>> >>
>> >> I am running an HDSP Multiface and my motherboard sound is disabled.
>> >>
>> >> I'm a big noob so all help is welcome. Thanks
>> >>
>> >> Here is some JACK output:
>> >>
>> >> JACK compiled with System V SHM support.
>> >> cannot lock down memory for jackd (Cannot allocate memory)
>> >> loading driver ..
>> >> Enhanced3DNow! detected
>> >> SSE2 detected
>> >> apparent rate = 44100
>> >> creating alsa driver ...
>> hw:0|hw:0|512|2|44100|0|0|nomon|swmeter|-|32bit
>> >> control device hw:0
>> >> configuring for 44100Hz, period = 512 frames, buffer = 2 periods
>> >> nperiods = 2 for capture
>> >> nperiods = 2 for playback
>> >> JACK: unable to mlock() port buffers: Cannot allocate memory
>> >> cannot use real-time scheduling (FIFO at priority 72) [for thread
>> >> -1229542496, from thread -1229542496] (1: Operation not permitted)
>> >> cannot
>> >> use real-time scheduling (FIFO at priority 62) [for thread
>> >> -1240032352, from thread -1240032352] (1: Operation not permitted)
>> >> 12:46:32.385 Server configuration saved to "/home/bozone/.jackdrc".
>> >> 12:46:32.386 Statistics reset.
>> >> 12:46:32.387 Client activated.
>> >> 12:46:32.388 Audio connection change.
>> >> 12:46:32.389 Audio connection graph change.
>> >> Enhanced3DNow! detected
>> >> SSE2 detected
>> >> cannot lock down memory for RT thread (Cannot allocate memory)
>> >> cannot use real-time scheduling (FIFO at priority 61) [for thread
>> >> -1211110496, from thread -1211110496] (1: Operation not permitted)
>> >> subgraph starting at qjackctl-2517 timed out (subgraph_wait_fd=11,
>> >> status
>> >> = 0, state = Triggered)
>> >> **** alsa_pcm: xrun of at least 2.189 msecs
>> >> 12:46:32.458 XRUN callback (1).
>> >
>> > Jack is not running with realtime scheduling and is not locking
>> memory,
>> > you _are_ supposed to get xruns :-)
>> >
>> > How did you install the core Planet CCRMA components in fc5? (kernel,
>> > etc). If you installed the meta package ("yum install
>> > planetccrma-core-*") you should have a custom version of pam with
>> > realtime scheduling and memory locking enabled for non-root users -
>> and
>> > the rtirq irq priority reordering startup script. See which version
>> you
>> > have ("rpm -q pam"), if it does not have a "rhfc5" in the release
>> field
>> > then you need to upgrade it to the Planet CCRMA version.
>>
>> Thanks Nando! yum install pam did the trick.
>
> Do you have rtirq? ("rpm -q rtirq").
>
>> One more question: I'm using onboard nVidia 6100 graphics and I get a
>> "bleedthrough" effect: my sound crackles when I open windows, menus,
>> move
>> things accross the screen, etc. This occurs whether I'm using the "nv"
>> drivers or the commercial drivers from nVidia. Is there any way I can
>> relieve this? I do have another matrox PCI card I can use, but I'd
>> rather
>> use the onboard.
>
> Hard to know if it is the video card hogging the bus or is just analog
> noise from a bad mobo design. Do you get xruns when that happens? Or is
> it just noise?
>
> You may want to take a look at this:
>   http://www-128.ibm.com/developerworks/library/l-hw2.html
>
> You could check the pci latency timers and see if changing the one for
> the video card makes any difference.
>
> Also make sure you have rtirq installed and active, it will reorder the
> interrupt priorities so that your soundcard has the best chance of
> servicing interrupts first.
>
> -- Fernando

Installed rtirq but how do I make sure that rtirq is active?

Here's my IRQ settings. "nvidia" is on 18 and my hdsp is on 19. Any
suggestions?


  0:     443827  IO-APIC-edge   [........N/  0]  pit
  1:         39  IO-APIC-edge   [........./  0]  i8042
  7:          1  IO-APIC-edge   [..P....../  0]  parport0
  8:          1  IO-APIC-edge   [........./  0]  rtc
  9:          0  IO-APIC-level  [........./  0]  acpi
 12:      26615  IO-APIC-edge   [........./  2]  i8042
 14:      12620  IO-APIC-edge   [........./  0]  ide0
 15:       1285  IO-APIC-edge   [........./  0]  ide1
 16:          0  IO-APIC-level  [........./  0]  libata
 17:      42000  IO-APIC-level  [........./  0]  eth0
 18:      33816  IO-APIC-level  [........./  7]  nvidia
 19:      31050  IO-APIC-level  [........./  0]  hdsp
 20:          0  IO-APIC-level  [........./  0]  ohci_hcd:usb1
 21:          0  IO-APIC-level  [........./  0]  ehci_hcd:usb2
NMI:          0
LOC:      33867
ERR:          0
MIS:          0




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