Hi Richard, > Hi Marek > Thanks for your kindly help on the i.MX6 PCIe switch debug. > > I encountered random panic although I add the irq_map codes pasted before. > Sometimes the switch + ep device can work well, but system maybe panic > sometimes. :( [...] > VFS: Mounted root (nfs filesystem) on device 0:11. > devtmpfs: mounted > Freeing unused kernel memory: 300K (80c29000 - 80c74000) > Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > <--System panic here sometimes. :( Looks like your init (program) exited in some way. Does this happen when you use the built-in ethernet controller too? Try booting with a ramdisk and generate large amounts of ethernet traffic (try with iperf), see if you observe a crash or corruption. What kind of patch did you apply , can you share that patch ? [...] > Thanks for pointing this out, I'll check this. Are there plans to implement > the PCIe switch support already so I won't step into someone else's work? > > In the meantime, this is what I see upon probe with V6 of the patches: > > Linux version 3.12.0-rc2-next-20130927+ > [...] > imx6q-pcie 1ffc000.pcie: phy link never came up PCI host bridge to bus > 0000:00 pci_bus 0000:00: root bus resource [io 0x1000-0x10000] pci_bus > 0000:00: root bus resource [mem 0x01000000-0x01efffff] pci_bus 0000:00: No > busn resource found for root bus, will use [bus 00-ff] PCI: bus0: Fast > back to back transfers disabled > PCI: bus1: Fast back to back transfers enabled > PCI: Device 0000:00:00.0 not available because of resource collisions > pcieport: probe of 0000:00:00.0 failed with error -22 pci 0000:00:00.0: BAR > 0: assigned [mem 0x01000000-0x010fffff] pci 0000:00:00.0: BAR 6: assigned > [mem 0x01100000-0x0110ffff pref] pci 0000:00:00.0: PCI bridge to [bus 01] > pci 0000:00:00.0: PCI bridge to [bus 01] > > Is this line normal/expected? Is this related to the PCIe switch I have > there? pcieport: probe of 0000:00:00.0 failed with error -22 Any ideas on this stuff above please? Best regards, Marek Vasut -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
