[LAU] Something interesting about kernel 3.6.5-rt14

[Ralf Mardorf]

I noticed something interesting about kernel 3.6.5-rt14.

spinymouse at qrc:~$ uname -a
Linux qrc 3.5.0-17-lowlatency #18-Ubuntu SMP PREEMPT Tue Oct 9 20:04:43
UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

spinymouse at qrc:~$ /etc/init.d/rtirq status | grep radeon
  768 FF      50   -  90  0.0 S    irq/18-radeon	
spinymouse at qrc:~$ /etc/init.d/rtirq status | grep irq/18
  777 FF      85   - 125  0.0 S    irq/18-snd_hdsp	
   56 FF      78   - 118  0.0 S    irq/18-ohci_hcd	
   58 FF      77   - 117  0.0 S    irq/18-ohci_hcd	
  768 FF      50   -  90  0.0 S    irq/18-radeon


spinymouse at qrc:~$ uname -a
Linux qrc 3.6.5-rt14 #1 SMP PREEMPT RT Fri Nov 2 21:36:37 CET 2012
x86_64 x86_64 x86_64 GNU/Linux

spinymouse at qrc:~$ /etc/init.d/rtirq status | grep radeon
  807 FF      50   -  90  0.0 S    irq/43-radeon	
spinymouse at qrc:~$ /etc/init.d/rtirq status | grep irq/18
  832 FF      85   - 125  0.0 S    irq/18-snd_hdsp	
   58 FF      78   - 118  0.0 S    irq/18-ohci_hcd	
   60 FF      77   - 117  0.0 S    irq/18-ohci_hcd

Unfortunately it didn't solve xrun issues for the RME card. However,
the kernel does switch to another IRQ for the graphics, for all other
kernels on different distros, the graphics always gets IRQ18, also if I
switch the integrated ATI with a Nvidia.

Regards,
Ralf