[+cc linux-pci, Yinghai] Thanks for the report! On Wed, Nov 12, 2014 at 8:57 PM, <bugzilla-daemon@xxxxxxxxxxxxxxxxxxx> wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=88131 > > Bug ID: 88131 > Summary: PCI device intel ixgbe and xhci with 64-bit bar > address can NOT work on x86_32 PAE kernel. > Product: Drivers > Version: 2.5 > Kernel Version: 3.18-rc4 > Hardware: i386 > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: PCI > Assignee: drivers_pci@xxxxxxxxxxxxxxxxxxxx > Reporter: mapengyu@xxxxxxxxx > Regression: No > > Created attachment 157441 > --> https://bugzilla.kernel.org/attachment.cgi?id=157441&action=edit > dmesg > > PCI device intel ixgbe and xhci with 64-bit bar address can NOT work on x86_32 > kernel. > > The bar0 base address of intel ixgbe ethernet card and xhci are above 4G. > The commit d56dbf5bab8ce44c5407bb099f71987f58d18bb4 try to map the resource > above 4G. > Enabled PAE and HIGHMEM64G, it should support 64-bit BAR, but failed on high > bar address. Can you also attach your .config to the bugzilla? Is this a regression? Did it work correctly before d56dbf5bab8c ("PCI: Allocate 64-bit BARs above 4G when possible")? I assume this is the problem you're seeing (for igbe): [ 6.604741] pci 0000:03:00.0: [8086:1528] type 00 class 0x020000 [ 6.610012] pci 0000:03:00.0: reg 0x10: [mem 0x383fffc00000-0x383fffdfffff 64bit pref] [ 6.617407] pci 0000:03:00.0: reg 0x18: [io 0x1020-0x103f] [ 6.622195] pci 0000:03:00.0: reg 0x20: [mem 0x383fffe04000-0x383fffe07fff 64bit pref] [ 6.638250] pci 0000:03:00.0: reg 0x184: [mem 0x91900000-0x91903fff 64bit] [ 6.644488] pci 0000:03:00.0: reg 0x190: [mem 0x91a00000-0x91a03fff 64bit] [ 6.702055] pci 0000:00:02.2: PCI bridge to [bus 03-04] [ 6.706434] pci 0000:00:02.2: bridge window [io 0x1000-0x1fff] [ 6.711783] pci 0000:00:02.2: bridge window [mem 0x91900000-0x91cfffff] [ 6.717906] pci 0000:00:02.2: can't handle 64-bit address space for bridge [ 7.498976] pci 0000:03:00.0: BAR 0: reserving [mem 0x383fffc00000-0x383fffdfffff flags 0x14220c] (d=0, p=0) [ 7.508491] pci 0000:03:00.0: can't claim BAR 0 [mem 0x383fffc00000-0x383fffdfffff 64bit pref]: no compatible bridge window [ 7.519460] pci 0000:03:00.0: BAR 2: reserving [io 0x1020-0x103f flags 0x40101] (d=0, p=0) [ 7.527327] pci 0000:03:00.0: BAR 4: reserving [mem 0x383fffe04000-0x383fffe07fff flags 0x14220c] (d=0, p=0) [ 7.536842] pci 0000:03:00.0: can't claim BAR 4 [mem 0x383fffe04000-0x383fffe07fff 64bit pref]: no compatible bridge window [ 7.547808] pci 0000:03:00.0: BAR 7: reserving [mem 0x91900000-0x919fffff flags 0x140204] (d=0, p=0) [ 7.556547] pci 0000:03:00.0: BAR 10: reserving [mem 0x91a00000-0x91afffff flags 0x140204] (d=0, p=0) [ 8.791833] pci 0000:03:00.0: BAR 0: assigned [mem 0x380000000000-0x3800001fffff 64bit pref] [ 8.799815] pci 0000:03:00.1: BAR 0: assigned [mem 0x380000200000-0x3800003fffff 64bit pref] [ 8.807796] pci 0000:03:00.0: BAR 4: assigned [mem 0x380000400000-0x380000403fff 64bit pref] [ 12.390578] ixgbe 0000:03:00.0: Adapter removed [ 12.394247] ixgbe: probe of 0000:03:00.0 failed with error -5 And this is the one for xhci? [ 6.303167] pci 0000:00:14.0: [8086:8d31] type 00 class 0x0c0330 [ 6.308435] pci 0000:00:14.0: reg 0x10: [mem 0x383ffff00000-0x383ffff0ffff 64bit] [ 7.640440] pci 0000:00:14.0: BAR 0: reserving [mem 0x383ffff00000-0x383ffff0ffff flags 0x140204] (d=0, p=0) [ 12.470777] xhci_hcd 0000:00:14.0: can't setup: -19 [ 12.474768] xhci_hcd 0000:00:14.0: USB bus 1 deregistered -- 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
