Angus Comber
2005-Jul-24 08:36 UTC
[Asterisk-Users] Do I have to worry about interrupt sharing here?
Hello
I am using a Junghanns QuadBRI ISDN card - the module name is qozap. If I like
at my interrupt assignment, qozap is sharing interrupt 10 with libata and
uhci_hcd.
I think libata is the IDE hard drive module and uhci_hcd is a USB module.
linux:~ # modprobe qozap
linux:~ # cat /proc/interrupts
CPU0
0: 12634579 XT-PIC timer
1: 10 XT-PIC i8042
2: 0 XT-PIC cascade
3: 0 XT-PIC Intel ICH5
5: 0 XT-PIC uhci_hcd
7: 0 XT-PIC parport0
8: 2 XT-PIC rtc
9: 21988 XT-PIC acpi, ehci_hcd, eth0
10: 7657 XT-PIC libata, uhci_hcd, qozap
11: 0 XT-PIC uhci_hcd, uhci_hcd
12: 118 XT-PIC i8042
14: 54851 XT-PIC ide0
15: 25272 XT-PIC ide1
NMI: 0
LOC: 0
ERR: 0
MIS: 0
Should I disable USB in the BIOS? Should that remove uhci_hcd loading? Is
there a way to re-allocate the interrupt used for libata?
Angus
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dbruce
2005-Jul-24 10:59 UTC
[Asterisk-Users] Do I have to worry about interrupt sharing here?
With your current setup, your IDE channels, ethernet card and BRI card are all
on seeperate interrupts, so you shouldn't have problems unless you will be
making heavy use of USB devices.
It appears that you are using an Intel ICH5 based motherboard. The Intel ICH5
chipset supports IO-APIC. If you recompile your kernel with IO-APIC support each
seperate device will get an interrupt of its own, and any potential interrupt
problems should disappear.
Regards,
Derek
----- Original Message -----
From: Angus Comber
To: asterisk-users@lists.digium.com
Sent: Sunday, July 24, 2005 9:36 AM
Subject: [Asterisk-Users] Do I have to worry about interrupt sharing here?
Hello
I am using a Junghanns QuadBRI ISDN card - the module name is qozap. If I
like at my interrupt assignment, qozap is sharing interrupt 10 with libata and
uhci_hcd.
I think libata is the IDE hard drive module and uhci_hcd is a USB module.
linux:~ # modprobe qozap
linux:~ # cat /proc/interrupts
CPU0
0: 12634579 XT-PIC timer
1: 10 XT-PIC i8042
2: 0 XT-PIC cascade
3: 0 XT-PIC Intel ICH5
5: 0 XT-PIC uhci_hcd
7: 0 XT-PIC parport0
8: 2 XT-PIC rtc
9: 21988 XT-PIC acpi, ehci_hcd, eth0
10: 7657 XT-PIC libata, uhci_hcd, qozap
11: 0 XT-PIC uhci_hcd, uhci_hcd
12: 118 XT-PIC i8042
14: 54851 XT-PIC ide0
15: 25272 XT-PIC ide1
NMI: 0
LOC: 0
ERR: 0
MIS: 0
Should I disable USB in the BIOS? Should that remove uhci_hcd loading? Is
there a way to re-allocate the interrupt used for libata?
Angus
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