On Wed, 3 Sep 2008 22:21:54 -0700 (PDT) Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
>
> On Wed, 3 Sep 2008, Andrew Morton wrote:
> >
> > The Vaio says:
> >
> > calling init_acpi_pm_clocksource+0x0/0x14a
> > initcall init_acpi_pm_clocksource+0x0/0x14a returned 0 after 32 msecs
> > calling pcibios_assign_resources+0x0/0x70
> > pci 0000:06:05.0: BAR 9 too large: 0x00000000000000-0x00000003ffffff
>
> Hmm. This should not be a new warning, afaik.
>
> But it looks totally bogus.
>
> The code does:
>
> r_size = r->end - r->start + 1;
> /* For bridges size != alignment */
> align = (i < PCI_BRIDGE_RESOURCES) ? r_size : r->start;
> order = __ffs(align) - 20;
> if (order > 11) {
> dev_warn(&dev->dev, "BAR %d too large: "
> "%#016llx-%#016llx\n", i,
> (unsigned long long)r->start,
> (unsigned long long)r->end);
>
> and the thing is, that's a bridge resource, so it chooses r_start as the
> alignment. Which is zero. so now __ffs(align) returns a bogus value, and
> you get the bogus warning.
>
> But CARDBUS bridges are _different_ from normal PCI bridges, and the
> alignment value isn't r->start. Strictly speaking it's not r_size either,
> it's always a fixed alignment of 4096 for MMIO bridging, i think. Maybe.
> Whatever. But our resource handling code can't handle that, and always
> wants either size alignment or start alignment.
>
> But for cardbus bridges, we should be doing size alignment, and the
> problem is that that code doesn't do the proper "resource_alignment()"
> use.
>
> Can you apply this patch, just to see if it fixes things.
Below..
> And do you know when this started happening? It shouldn't have been all
> that recent. Maybe you haven't tried your Vaio in a while?
Yes, the Vaio had a vacation in New York. Last kernel it booted was
2.6.26-rc8-mm1.
--- x 2008-09-03 21:38:24.000000000 -0700
+++ y 2008-09-03 22:29:04.000000000 -0700
...
@@ -503,15 +503,15 @@
calling init_acpi_pm_clocksource+0x0/0x14a
initcall init_acpi_pm_clocksource+0x0/0x14a returned 0 after 32 msecs
calling pcibios_assign_resources+0x0/0x70
-pci 0000:06:05.0: BAR 9 too large: 0x00000000000000-0x00000003ffffff
pci 0000:06:05.0: CardBus bridge, secondary bus 0000:07
pci 0000:06:05.0: IO window: 0x002400-0x0024ff
pci 0000:06:05.0: IO window: 0x002800-0x0028ff
-pci 0000:06:05.0: MEM window: 0x54000000-0x57ffffff
+pci 0000:06:05.0: PREFETCH window: 0x50000000-0x53ffffff
+pci 0000:06:05.0: MEM window: 0x58000000-0x5bffffff
pci 0000:00:1e.0: PCI bridge, secondary bus 0000:06
pci 0000:00:1e.0: IO window: 0x2000-0x2fff
pci 0000:00:1e.0: MEM window: 0xb0100000-0xb01fffff
-pci 0000:00:1e.0: PREFETCH window: disabled
+pci 0000:00:1e.0: PREFETCH window: 0x00000050000000-0x00000053ffffff
pci 0000:00:1e.0: setting latency timer to 64
pci 0000:06:05.0: power state changed by ACPI to D0
found new irq_cfg for irq 21
@@ -522,13 +522,13 @@
bus: 00 index 1 mmio: [0, ffffffff]
bus: 06 index 0 io port: [2000, 2fff]
bus: 06 index 1 mmio: [b0100000, b01fffff]
-bus: 06 index 2 mmio: [0, 0]
+bus: 06 index 2 mmio: [50000000, 53ffffff]
bus: 06 index 3 io port: [0, ffff]
bus: 06 index 4 mmio: [0, ffffffff]
bus: 07 index 0 io port: [2400, 24ff]
bus: 07 index 1 io port: [2800, 28ff]
-bus: 07 index 2 mmio: [0, 3ffffff]
-bus: 07 index 3 mmio: [54000000, 57ffffff]
+bus: 07 index 2 mmio: [50000000, 53ffffff]
+bus: 07 index 3 mmio: [58000000, 5bffffff]
initcall pcibios_assign_resources+0x0/0x70 returned 0 after 0 msecs
calling inet_init+0x0/0x1c3
NET: Registered protocol family 2
also...
@@ -860,16 +860,11 @@
sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1 sda2 sda3 < sda5 sda6 >
sd 2:0:0:0: [sda] Attached SCSI disk
-initcall piix_init+0x0/0x27 returned 0 after 1128 msecs
+initcall piix_init+0x0/0x27 returned 0 after 1136 msecs
calling nonstatic_sysfs_init+0x0/0xf
initcall nonstatic_sysfs_init+0x0/0xf returned 0 after 0 msecs
calling yenta_socket_init+0x0/0x16
yenta_cardbus 0000:06:05.0: CardBus bridge found [104d:818f]
-yenta_cardbus 0000:06:05.0: CardBus bridge, secondary bus 0000:07
-yenta_cardbus 0000:06:05.0: IO window: 0x002400-0x0024ff
-yenta_cardbus 0000:06:05.0: IO window: 0x002800-0x0028ff
-yenta_cardbus 0000:06:05.0: PREFETCH window: 0x50400000-0x507fffff
-yenta_cardbus 0000:06:05.0: MEM window: 0x54000000-0x57ffffff
yenta_cardbus 0000:06:05.0: Using CSCINT to route CSC interrupts to PCI
yenta_cardbus 0000:06:05.0: Routing CardBus interrupts to PCI
yenta_cardbus 0000:06:05.0: TI: mfunc 0x01001b22, devctl 0x64
@@ -878,7 +873,8 @@
pci_bus 0000:06: Raising subordinate bus# of parent bus (#06) from #07 to #0a
yenta_cardbus 0000:06:05.0: pcmcia: parent PCI bridge I/O window: 0x2000 - 0x2fff
yenta_cardbus 0000:06:05.0: pcmcia: parent PCI bridge Memory window: 0xb0100000 - 0xb01fffff
-initcall yenta_socket_init+0x0/0x16 returned 0 after 499 msecs
+yenta_cardbus 0000:06:05.0: pcmcia: parent PCI bridge Memory window: 0x50000000 - 0x53ffffff
+initcall yenta_socket_init+0x0/0x16 returned 0 after 492 msecs
calling mon_init+0x0/0xee
initcall mon_init+0x0/0xee returned 0 after 0 msecs
calling i8042_init+0x0/0x357
Full dmesg: http://userweb.kernel.org/~akpm/dmesg-sony-2.txt
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