[linux-audio-user] jack xruns on SUSE 9.3 with Edirol UA25 card - SOLVED

Cesare cesare at poeticstudios.com
Thu Jul 28 21:48:03 EDT 2005


Eric Dantan Rzewnicki wrote:

>On Fri, Jul 29, 2005 at 02:38:35AM +0200, Cesare wrote:
>  
>
>>Ryan wrote:
>>    
>>
>>>On Thu, 2005-07-28 at 15:26 -0400, Lee Revell wrote:
>>>      
>>>
>>>>On Thu, 2005-07-28 at 02:59 -0500, Ryan wrote:
>>>>        
>>>>
>>>>>On Thu, 2005-07-28 at 08:07 +0200, Cesare Marilungo wrote:
>>>>>          
>>>>>
>>>>>>I solved the problem *cough* disabling the ethernet card. Don't know why
>>>>>>it worked randomly yesterday.
>>>>>>            
>>>>>>
>>>>>I can confirm this problem/solution.  UA25 glitchy as heck till eth0 is
>>>>>disabled.  I have a dell inspiron 5100 running gentoo btw.
>>>>>Makes icecast streaming jackd a bit tough, but at least it works.
>>>>>          
>>>>>
>>>>Are you both using the same network driver/hardware?  Does it share an
>>>>interrupt with the USB?
>>>>        
>>>>
>>>Ethernet controller: Broadcom Corporation BCM4401 100Base-T (rev 01)
>>>Interrupt: pin A routed to IRQ 7
>>>(b44 module, marked experimental since 2.4.x days)
>>>USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
>>>USB UHCI Controller
>>>Interrupt: pin [A, B, C, d] routed to IRQ 11
>>>This is an UHCI controller... I thought the usb kernel stuff was going
>>>to get some attention, something about top-half/bottom-half irq
>>>handling?  Afaik that hasn't happened yet.
>>>-ry
>>>      
>>>
>>Marvell Yukon Gigabit Ethernet 10/100/1000
>>    
>>
>
>Is this perchance built in to the motherboard? I'm having issues with an
>athlon64 box on an asus a8v with one of these marvell gigabit nics built
>in. This is with a digigram mixart 8 aes/ebu card. Jack is reporting
>xruns fairly reliable when I switch windows in openbox. 
>
>I'll try disabling the nic tomorrow and see if that changes things at
>all here.
>
>  
>
Yep. asus k8v-x  with athlon 64 3000+.

No xruns after disabling the ethernet interface. Kernel is the one 
shipped in Suse. I think it is fair to compile just the realtime module 
with the patch applied to source. I still have the capability module but 
don't load it.

With the nvidia driver some xruns appear at -p64 -n4 but just in some 
critical occasions.

c.

>>I'm in Window$ now( developing in Flash, sigh!), can't check the irqs.  
>>But I remember that I checked for this and the irqs were different.
>>
>>It's also interesting that I got half the latency switching from 
>>kernel-2.6.10 to 2.6.11. The latter is x86_64, BTW. And I can't get such 
>>low latency on MacOSX or XP (neither with the Egosys PCI card). And this 
>>is a USB card.
>>    
>>
>
>athlon 64 3200+ here. though at the moment the kernel is compiled with
>CONFIG_MK7=y. I'll try MK8 tomorrow as well.
>
>this is linux 2.6.12.3 on debian sarge.
>  
>





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