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Date: Wed, 6 Jan 2010 09:19:47 +1100 From: Alex Brooks <a.brooks@...athon-robotics.com> To: Bjorn Helgaas <bjorn.helgaas@...com> Cc: linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: BAR 0: can't allocate resource > > I have a problem getting a couple of PCI cards to play nicely together. > > ... > > > > And (for both kernels) the output of lspci has the following line: > > 01:04.0 Unclassified device [0080]: Device 0002:0080 > > When you have only the 8-port serial card installed, it appears at > 01:04.0. When you have both cards installed, we don't see a new device, > and whatever is at 01:04.0 no longer looks like the octal UART. I'm pretty sure that it is the octal UART, but it isn't being recognised properly. To test this theory, I tried with (a) no cards at all, and (b) just the MiniPCI adapter (no serial card) -- nothing else appears at 01:04.0 (output of lspci attached). > > Hardware Details: > > - My motherboard is a DigitalLogic MSM945. It has a PC104 bus. > > - I have two PC104 cards: > > i) 8-port serial card (DiamondSystems Emerald-MM-8Plus) > > ii) PC/104+ to MiniPCI Adapter (ConnectTech) (no MiniPCI cards > > installed). > > Do you have these two cards? > > http://www.diamondsystems.com/products/emeraldmm8plus, > http://www.connecttech.com/sub/Products/PC104plus_MiniPCI.asp Yes that's right. > If so, both of those web pages mention jumpers that set the card's > PCI device ("slot") number. My guess is that both of your cards > are set to the same number. I'd already looked for this, I'm certain I have the jumpers right (I tried intentionally setting them incorrectly, the failure mode is different). Alex View attachment "lspci_noserial.txt" of type "text/plain" (1419 bytes) View attachment "lspci_nocards.txt" of type "text/plain" (1420 bytes)
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