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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello,<o:p></o:p></p><p class=MsoNormal><br>I have an interrupt conflict between a two port pci-e serial card and<br>the onboard ethernet controllers in a PowerEdge 850.<br><br>I'm running kernel 2.6.18-194.26.1.el5PAE with bios revision A04.<br><br>In every instance, the two serial ports have been allocated the same<br>interrupts as the two ethernet controllers.<br><br>I have tried many kernel boot options, including acpi=off, pci=noirq,<br>acpi=noirq.<br><br>When I enter the bios, I can see the same interrupts allocated to the<br>serial ports and ethernet controllers. Attempting to change the<br>interrupts manual causes both a nic and a serial port to both change,<br>both to the same interrupt.<br><br>I have even tried disabling onboard usb and serial with no change.<br><br>I'm beginning to think the pci-e serial card is broken under linux. I<br>have a similar card running on a PE850 under Windows Server 2003 and<br>there are no such conflicts.<br><br>Here is some output from lspci -v :<br><br>02:00.0 Serial controller: Oxford Semiconductor Ltd OX16PCI954 (Quad<br>16950 UART) function 0 (Uart) (prog-if 06 [16950])<br> Subsystem: Oxford Semiconductor Ltd Unknown device 0001<br> Flags: medium devsel, IRQ 137<br> I/O ports at ecf8 [size=8]<br> Memory at feaff000 (32-bit, non-prefetchable) [size=4K]<br> I/O ports at ece0 [size=16]<br> Memory at feafe000 (32-bit, non-prefetchable) [size=4K]<br> Memory at feafd000 (32-bit, non-prefetchable) [size=4K]<br> Capabilities: [40] Power Management version 1<br><br>02:01.0 Serial controller: Oxford Semiconductor Ltd OXCB950 Cardbus<br>16950 UART (prog-if 06 [16950])<br> Subsystem: Oxford Semiconductor Ltd Unknown device 0001<br> Flags: medium devsel, IRQ 145<br> I/O ports at ecf0 [disabled] [size=8]<br> Memory at feafc000 (32-bit, non-prefetchable) [disabled] [size=4K]<br> I/O ports at ecd0 [disabled] [size=16]<br> Memory at feafb000 (32-bit, non-prefetchable) [disabled] [size=4K]<br> Memory at feafa000 (32-bit, non-prefetchable) [disabled] [size=4K]<br> Capabilities: [40] Power Management version 1<br><br><br>05:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethe<br>rnet PCI Express (rev 11)<br> Subsystem: Dell Unknown device 01b6<br> Flags: bus master, fast devsel, latency 0, IRQ 137<br> Memory at fe5f0000 (64-bit, non-prefetchable) [size=64K]<br> Expansion ROM at <ignored> [disabled]<br> Capabilities: [48] Power Management version 2<br> Capabilities: [50] Vital Product Data<br> Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable<br>-<br> Capabilities: [d0] Express Endpoint IRQ 0<br> Capabilities: [100] Advanced Error Reporting<br> Capabilities: [13c] Virtual Channel<br><br>06:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethe<br>rnet PCI Express (rev 11)<br> Subsystem: Dell Unknown device 01b6<br> Flags: bus master, fast devsel, latency 0, IRQ 145<br> Memory at fe3f0000 (64-bit, non-prefetchable) [size=64K]<br> Expansion ROM at <ignored> [disabled]<br> Capabilities: [48] Power Management version 2<br> Capabilities: [50] Vital Product Data<br> Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable<br>-<br> Capabilities: [d0] Express Endpoint IRQ 0<br> Capabilities: [100] Advanced Error Reporting<br> Capabilities: [13c] Virtual Channel<br><br><br>I'm fairly stumped, and I'm about ready to try different serial hardware.<br><br>Any clues from the experts on this list?<br><br><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>Dan<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>------</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>dan irwin</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>it manager</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;mso-fareast-language:EN-AU'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>jackie's wholesale nurseries p/l t/a</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>zoomgarden</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;mso-fareast-language:EN-AU'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>56 coutts drive burpengary qld 4505</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>email dan@jackies.com.au</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>tel 07 3888 2481</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>fax 07 3888 2530</span><span style='font-size:12.0pt;mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'><img width=167 height=120 id="Picture_x0020_1" src="cid:image001.png@01CB8D4D.31C03770"></span><span lang=EN style='font-size:12.0pt;font-family:"Helvetica","sans-serif"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>************************************************************************</span><span lang=EN-US style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>Jackie's Legal Disclaimer:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>1) This email is confidential and may contain legally privileged<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>information. If you are not the intended recipient, you must not <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>disclose or use the information contained in it. If you have received <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>this email in error, please notify us immediately by return email and <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>delete the document.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>2) All emails sent to and from Jackie's Wholesale Nurseries Pty Ltd. are<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>scanned for content. Any material deemed to contain inappropriate<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>subject matter will be reported to the email administrator of all <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>parties concerned.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Helvetica","sans-serif";mso-fareast-language:EN-AU'>************************************************************************</span><span style='font-size:12.0pt;font-family:"Courier New";mso-fareast-language:EN-AU'><o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-AU'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>