added Linux-pci
Jesse Brandeburg wrote: > On 1/16/07, Allen Parker <[EMAIL PROTECTED]> wrote: >> Allen Parker wrote: >>> I have a PCI-E pro/1000 MT Quad Port adapter, which works quite well >>> under 2.6.19.2 but fails to see link under 2.6.20-rc5. Earlier >>> today I reported this to [EMAIL PROTECTED], but thought I >>> should get the word out in case someone else is testing this kernel >>> on this nic chipset. > > Upon some further investigation with Allen, I got this info, and it > appears that his system is not freeing MSI irq's correctly. > > from our discussion: >> Allen wrote: >>> Jesse Brandeburg wrote: >>> I believe you may have an interrupt delivery problem, due to kernel >>> changes. When you don't get interrupts delivered correctly, you may >>> not achieve link up. >>> >>> you can try disabling CONFIG_PCI_MSI in the kernel, as another >>> trouble shooting step. Also, what model motherboard/machine are you >>> using, and please check to make sure your BIOS is up to date. >> >> CONFIG_PCI_MSI seems to fix it as well, however, i'm not sure about >> possible performance implications with leaving it turned off. >> >> Tyan S2927G2NR w/ 2x Opteron 2210 bios rev 1.02 iirc > > Also, here is an excerpt of his his proc/interrupts > Allen Parker wrote: > CPU0 CPU1 CPU2 CPU3 > 498: 1 8 129 8723 PCI-MSI-edge eth3 > 499: 0 42 122 17135 PCI-MSI-edge eth2 > 500: 0 19 275 1418326 PCI-MSI-edge eth1 > 501: 0 0 0 0 PCI-MSI-edge eth1 > 502: 0 414 26 25227 PCI-MSI-edge eth1 > 503: 0 37 264 1418695 PCI-MSI-edge eth0 > 504: 0 0 0 139 PCI-MSI-edge eth0 > 505: 0 6 714 22806 PCI-MSI-edge eth0 > NMI: 275 207 225 262 > LOC:3531851 3531829 3531805 3531778 > ERR: 0 > > The disturbing bit is that on this Hypertransport to PCIe system, his > interrupts appear to be getting registered multiple times on different > IRQ numbers. > > help? - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
