On Sun, 2014-02-09 at 01:02 +0100, Daniel Vetter wrote: > On Sat, Feb 8, 2014 at 9:22 PM, Paul Bolle <pebolle@xxxxxxxxxx> wrote: > > Daniel Vetter schreef op za 08-02-2014 om 20:59 [+0100]: > >> Hm, if this is really a regression between 3.13 and 3.14-rc1 then I > >> don't see any quick candidates - relevant functions in intel-gtt.c > >> seem unchanged. > >> > >> So probably a bisect is what we need here. Note that this could also > >> be due to resource handling changes in the driver/pci core, so you > >> can't restrict the bisect really. > > > > The last bisect on this machine took over 20 builds to pinpoint the > > offending commit. So that's bad news ... > > Somehow we can't allocate the flush page resource any more, but I > don't have any idea what. There's nothing occupying the old spot (the > usual reason why resource management goes boom), so dunno why this > doesn't work any more. I think bisecting is the most fruitful avenue > here. > -Daniel > > > > > >> But before going down this route it > >> would be worth to check out the resource allocations of both kernels. > >> Can you please attach /proc/iomem for both 3.13 and 3.14-rc1 > > > > The diff between /proc/iomem on v3.13.2 and v3.14-rc1 is: > > --- iomem-3.13.2 2014-02-08 21:14:30.214030591 +0100 > > +++ iomem-3.14-rc1 2014-02-08 21:07:22.041189158 +0100 > > @@ -11,16 +11,13 @@ > > 000e0000-000effff : Extension ROM > > 000f0000-000fffff : System ROM > > 00100000-7f6dffff : System RAM > > - 00400000-009af63a : Kernel code > > - 009af63b-00c932ff : Kernel data > > - 00d4f000-00e4dfff : Kernel bss > > + 00400000-009c57bf : Kernel code > > + 009c57c0-00cb6aff : Kernel data > > + 00d78000-00e74fff : Kernel bss > > 7f6e0000-7f6f4fff : ACPI Tables > > 7f6f5000-7f6fffff : ACPI Non-volatile Storage > > 7f700000-7fffffff : reserved > > 7f800000-7fffffff : Graphics Stolen Memory > > -80000000-801fffff : PCI Bus 0000:02 > > -80200000-8027ffff : 0000:00:02.1 > > -80280000-80280fff : Intel Flush Page > > a0000000-a003ffff : 0000:00:02.0 > > a0040000-a00403ff : 0000:00:1d.7 > > a0040000-a00403ff : ehci_hcd > > > > /proc/iomem for v3.13.2: > > 00000000-00000fff : reserved > > 00001000-0009efff : System RAM > > 0009f000-0009ffff : reserved > > 000a0000-000bffff : Video RAM area > > 000c0000-000c7fff : Video ROM > > 000c8000-000cbfff : pnp 00:00 > > 000cf800-000d3fff : reserved > > 000cf800-000d0dff : Adapter ROM > > 000d1000-000d1fff : Adapter ROM > > 000dc000-000fffff : reserved > > 000e0000-000effff : Extension ROM > > 000f0000-000fffff : System ROM > > 00100000-7f6dffff : System RAM > > 00400000-009af63a : Kernel code > > 009af63b-00c932ff : Kernel data > > 00d4f000-00e4dfff : Kernel bss > > 7f6e0000-7f6f4fff : ACPI Tables > > 7f6f5000-7f6fffff : ACPI Non-volatile Storage > > 7f700000-7fffffff : reserved > > 7f800000-7fffffff : Graphics Stolen Memory > > 80000000-801fffff : PCI Bus 0000:02 > > 80200000-8027ffff : 0000:00:02.1 > > 80280000-80280fff : Intel Flush Page > > a0000000-a003ffff : 0000:00:02.0 > > a0040000-a00403ff : 0000:00:1d.7 > > a0040000-a00403ff : ehci_hcd > > a0040400-a00404ff : 0000:00:1e.2 > > a0040400-a00404ff : Intel ICH6 > > a0040800-a00409ff : 0000:00:1e.2 > > a0040800-a00409ff : Intel ICH6 > > a0080000-a00fffff : 0000:00:02.0 > > a0100000-a01fffff : PCI Bus 0000:02 > > a0100000-a010ffff : 0000:02:00.0 > > a0100000-a010ffff : tg3 > > a0200000-afffffff : PCI Bus 0000:04 > > a0200000-a0200fff : 0000:04:00.0 > > a0200000-a0200fff : yenta_socket > > a0201000-a02010ff : 0000:04:00.1 > > a0201000-a02010ff : mmc0 > > a0202000-a0202fff : 0000:04:02.0 > > a0202000-a0202fff : ipw2200 > > a4000000-a7ffffff : PCI CardBus 0000:05 > > c0000000-cfffffff : 0000:00:02.0 > > d0000000-d7ffffff : PCI Bus 0000:04 > > d0000000-d3ffffff : PCI CardBus 0000:05 > > e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff] > > e0000000-efffffff : reserved > > e0000000-efffffff : pnp 00:01 > > f0008000-f000bfff : reserved > > f0008000-f000bfff : pnp 00:01 > > f000b410-f000b414 : iTCO_wdt > > f000b410-f000b414 : iTCO_wdt > > fec00000-fec0ffff : reserved > > fec00000-fec003ff : IOAPIC 0 > > fed14000-fed19fff : reserved > > fed14000-fed17fff : pnp 00:01 > > fed18000-fed18fff : pnp 00:01 > > fed19000-fed19fff : pnp 00:01 > > fed20000-fed8ffff : reserved > > fee00000-fee00fff : Local APIC > > fee00000-fee00fff : reserved > > ff000000-ffffffff : reserved > > > > /proc/iomem for v3.14-rc1: > > 00000000-00000fff : reserved > > 00001000-0009efff : System RAM > > 0009f000-0009ffff : reserved > > 000a0000-000bffff : Video RAM area > > 000c0000-000c7fff : Video ROM > > 000c8000-000cbfff : pnp 00:00 > > 000cf800-000d3fff : reserved > > 000cf800-000d0dff : Adapter ROM > > 000d1000-000d1fff : Adapter ROM > > 000dc000-000fffff : reserved > > 000e0000-000effff : Extension ROM > > 000f0000-000fffff : System ROM > > 00100000-7f6dffff : System RAM > > 00400000-009c57bf : Kernel code > > 009c57c0-00cb6aff : Kernel data > > 00d78000-00e74fff : Kernel bss > > 7f6e0000-7f6f4fff : ACPI Tables > > 7f6f5000-7f6fffff : ACPI Non-volatile Storage > > 7f700000-7fffffff : reserved > > 7f800000-7fffffff : Graphics Stolen Memory > > a0000000-a003ffff : 0000:00:02.0 > > a0040000-a00403ff : 0000:00:1d.7 > > a0040000-a00403ff : ehci_hcd > > a0040400-a00404ff : 0000:00:1e.2 > > a0040400-a00404ff : Intel ICH6 > > a0040800-a00409ff : 0000:00:1e.2 > > a0040800-a00409ff : Intel ICH6 > > a0080000-a00fffff : 0000:00:02.0 > > a0100000-a01fffff : PCI Bus 0000:02 > > a0100000-a010ffff : 0000:02:00.0 > > a0100000-a010ffff : tg3 > > a0200000-afffffff : PCI Bus 0000:04 > > a0200000-a0200fff : 0000:04:00.0 > > a0200000-a0200fff : yenta_socket > > a0201000-a02010ff : 0000:04:00.1 > > a0201000-a02010ff : mmc0 > > a0202000-a0202fff : 0000:04:02.0 > > a0202000-a0202fff : ipw2200 > > a4000000-a7ffffff : PCI CardBus 0000:05 > > c0000000-cfffffff : 0000:00:02.0 > > d0000000-d7ffffff : PCI Bus 0000:04 > > d0000000-d3ffffff : PCI CardBus 0000:05 > > e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff] > > e0000000-efffffff : reserved > > e0000000-efffffff : pnp 00:01 > > f0008000-f000bfff : reserved > > f0008000-f000bfff : pnp 00:01 > > f000b410-f000b414 : iTCO_wdt > > f000b410-f000b414 : iTCO_wdt > > fec00000-fec0ffff : reserved > > fec00000-fec003ff : IOAPIC 0 > > fed14000-fed19fff : reserved > > fed14000-fed17fff : pnp 00:01 > > fed18000-fed18fff : pnp 00:01 > > fed19000-fed19fff : pnp 00:01 > > fed20000-fed8ffff : reserved > > fee00000-fee00fff : Local APIC > > fee00000-fee00fff : reserved > > ff000000-ffffffff : reserved > > > > Thanks, > > > > > > Paul Bolle > > > > > PCI resource allocation is undergoing some changes at the moment, it's definitely a bug if the Flush Page isn't getting allocated. I'm looking forward to hopefully getting pci_bus_alloc_resource_fit() behaviour in mainline, it will provide much better resource allocation in the 32 bit PCI address space, and prevent problems like this from cropping up. See Yinghai Lu's for-pci-res-alloc branch. I've been carrying the changes in my local tree, but right now the upstream PCI changes are quite extensive. He's planning on rebasing the branch soon. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
