Hello,
I have an interrupt conflict between a two port pci-e serial card and the onboard ethernet controllers in a PowerEdge 850.
I'm running kernel 2.6.18-194.26.1.el5PAE with bios revision A04.
In every instance, the two serial ports have been allocated the same interrupts as the two ethernet controllers.
I have tried many kernel boot options, including acpi=off, pci=noirq, acpi=noirq.
When I enter the bios, I can see the same interrupts allocated to the serial ports and ethernet controllers. Attempting to change the interrupts manual causes both a nic and a serial port to both change, both to the same interrupt.
I have even tried disabling onboard usb and serial with no change.
I'm beginning to think the pci-e serial card is broken under linux. I have a similar card running on a PE850 under Windows Server 2003 and there are no such conflicts.
Here is some output from lspci -v :
02:00.0 Serial controller: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART) function 0 (Uart) (prog-if 06 [16950]) Subsystem: Oxford Semiconductor Ltd Unknown device 0001 Flags: medium devsel, IRQ 137 I/O ports at ecf8 [size=8] Memory at feaff000 (32-bit, non-prefetchable) [size=4K] I/O ports at ece0 [size=16] Memory at feafe000 (32-bit, non-prefetchable) [size=4K] Memory at feafd000 (32-bit, non-prefetchable) [size=4K] Capabilities: [40] Power Management version 1
02:01.0 Serial controller: Oxford Semiconductor Ltd OXCB950 Cardbus 16950 UART (prog-if 06 [16950]) Subsystem: Oxford Semiconductor Ltd Unknown device 0001 Flags: medium devsel, IRQ 145 I/O ports at ecf0 [disabled] [size=8] Memory at feafc000 (32-bit, non-prefetchable) [disabled] [size=4K] I/O ports at ecd0 [disabled] [size=16] Memory at feafb000 (32-bit, non-prefetchable) [disabled] [size=4K] Memory at feafa000 (32-bit, non-prefetchable) [disabled] [size=4K] Capabilities: [40] Power Management version 1
05:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethe rnet PCI Express (rev 11) Subsystem: Dell Unknown device 01b6 Flags: bus master, fast devsel, latency 0, IRQ 137 Memory at fe5f0000 (64-bit, non-prefetchable) [size=64K] Expansion ROM at <ignored> [disabled] Capabilities: [48] Power Management version 2 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable - Capabilities: [d0] Express Endpoint IRQ 0 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel
06:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethe rnet PCI Express (rev 11) Subsystem: Dell Unknown device 01b6 Flags: bus master, fast devsel, latency 0, IRQ 145 Memory at fe3f0000 (64-bit, non-prefetchable) [size=64K] Expansion ROM at <ignored> [disabled] Capabilities: [48] Power Management version 2 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable - Capabilities: [d0] Express Endpoint IRQ 0 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel
I'm fairly stumped, and I'm about ready to try different serial hardware.
Any clues from the experts on this list?
Regards,
Dan
------
dan irwin
it manager
jackie's wholesale nurseries p/l t/a
zoomgarden
56 coutts drive burpengary qld 4505
email dan@jackies.com.au
tel 07 3888 2481
fax 07 3888 2530
************************************************************************
Jackie's Legal Disclaimer:
1) This email is confidential and may contain legally privileged
information. If you are not the intended recipient, you must not
disclose or use the information contained in it. If you have received
this email in error, please notify us immediately by return email and
delete the document.
2) All emails sent to and from Jackie's Wholesale Nurseries Pty Ltd. are
scanned for content. Any material deemed to contain inappropriate
subject matter will be reported to the email administrator of all
parties concerned.
************************************************************************
