Re: [Bug 13940] iwlagn and sky2 stopped working, ACPI-related

[Yinghai Lu <yinghai@kernel.org>]

bugzilla-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=13940
> 
> 
> Chuck Ebbert <cebbert@redhat.com> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |yinghai@kernel.org
> 
> 
> 
> 


[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  BIOS-e820: 0000000000000000 - 000000000009f400 (usable)
[    0.000000]  BIOS-e820: 000000000009f400 - 00000000000a0000 (reserved)
[    0.000000]  BIOS-e820: 00000000000d2000 - 00000000000d4000 (reserved)
[    0.000000]  BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved)
[    0.000000]  BIOS-e820: 0000000000100000 - 00000000b5aa1000 (usable)
[    0.000000]  BIOS-e820: 00000000b5aa1000 - 00000000b5aa7000 (reserved)
[    0.000000]  BIOS-e820: 00000000b5aa7000 - 00000000b5bba000 (usable)
[    0.000000]  BIOS-e820: 00000000b5bba000 - 00000000b5c0f000 (reserved)
[    0.000000]  BIOS-e820: 00000000b5c0f000 - 00000000b5d08000 (usable)
[    0.000000]  BIOS-e820: 00000000b5d08000 - 00000000b5f0f000 (reserved)
[    0.000000]  BIOS-e820: 00000000b5f0f000 - 00000000b5f18000 (usable)
[    0.000000]  BIOS-e820: 00000000b5f18000 - 00000000b5f1f000 (reserved)
[    0.000000]  BIOS-e820: 00000000b5f1f000 - 00000000b5f65000 (usable)
[    0.000000]  BIOS-e820: 00000000b5f65000 - 00000000b5f9f000 (ACPI NVS)
[    0.000000]  BIOS-e820: 00000000b5f9f000 - 00000000b5fe1000 (usable)
[    0.000000]  BIOS-e820: 00000000b5fe1000 - 00000000b5fff000 (ACPI data)
[    0.000000]  BIOS-e820: 00000000b5fff000 - 00000000b6000000 (usable)
[    0.000000]  BIOS-e820: 0000000100000000 - 0000000140000000 (usable)

some devices don't get allocated resources from BIOS

[    0.819921] pci 0000:00:1f.3: reg 10 64bit mmio: [0x000000-0x0000ff]
[    0.819939] pci 0000:00:1f.3: reg 20 io port: [0x1c00-0x1c1f]
[    0.820029] pci 0000:00:1c.0: bridge io port: [0x00-0xfff]
[    0.820033] pci 0000:00:1c.0: bridge 32bit mmio: [0x000000-0x0fffff]
[    0.820041] pci 0000:00:1c.0: bridge 64bit mmio pref: [0x000000-0x0fffff]
[    0.820113] pci 0000:07:00.0: reg 10 64bit mmio: [0x000000-0x003fff]
[    0.820123] pci 0000:07:00.0: reg 18 io port: [0x00-0xff]
[    0.820203] pci 0000:07:00.0: supports D1 D2
[    0.820204] pci 0000:07:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.820213] pci 0000:07:00.0: PME# disabled
[    0.820289] pci 0000:00:1c.4: bridge io port: [0x00-0xfff]
[    0.820294] pci 0000:00:1c.4: bridge 32bit mmio: [0x000000-0x0fffff]
[    0.820301] pci 0000:00:1c.4: bridge 64bit mmio pref: [0x000000-0x0fffff]
[    0.820388] pci 0000:08:00.0: reg 10 64bit mmio: [0x000000-0x001fff]
[    0.820501] pci 0000:08:00.0: PME# supported from D0 D3hot D3cold
[    0.820510] pci 0000:08:00.0: PME# disabled
[    0.820593] pci 0000:00:1c.5: bridge io port: [0x00-0xfff]
[    0.820598] pci 0000:00:1c.5: bridge 32bit mmio: [0x000000-0x0fffff]
[    0.820605] pci 0000:00:1c.5: bridge 64bit mmio pref: [0x000000-0x0fffff]


will be in
[    0.000000] Allocating PCI resources starting at b6000000 (gap: b6000000:4a000000)

[    7.878413] sky2 driver version 1.23
[    7.884402] sky2 0000:07:00.0: enabling device (0000 -> 0003)
[    7.889483] sky2 0000:07:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    7.894502] sky2 0000:07:00.0: setting latency timer to 64
[    7.894555] sky2 0000:07:00.0: unsupported chip type 0xff
[    7.899554] sky2 0000:07:00.0: PCI INT A disabled
[    7.904379] sky2: probe of 0000:07:00.0 failed with error -95

[    8.857709] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27kds
[    8.863357] iwlagn: Copyright(c) 2003-2009 Intel Corporation
[    8.875763] iwlagn 0000:08:00.0: enabling device (0000 -> 0002)
[    8.881477] iwlagn 0000:08:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[    8.887083] iwlagn 0000:08:00.0: setting latency timer to 64
[    8.887128] iwlagn 0000:08:00.0: Detected Intel Wireless WiFi Link 5100AGN REV=0xFDFFFFFF
[    8.892723]   alloc irq_desc for 22 on node 0
[    8.892726]   alloc kstat_irqs on node 0
[    9.073995] iwlagn 0000:08:00.0: Failed, HW not ready
[    9.080292] iwlagn 0000:08:00.0: PCI INT A disabled


07:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev \
12)  Subsystem: Toshiba America Info Systems Device ff50
...
	Memory at b6000000 (64-bit, non-prefetchable) [size=16K]
	I/O ports at 2000 [size=256]
...

08:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100
...
	Memory at b6100000 (64-bit, non-prefetchable) [size=8K]
...



please try to attached patch, that will increae alignment from 32M to 64M.

---
 arch/x86/kernel/e820.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6/arch/x86/kernel/e820.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/e820.c
+++ linux-2.6/arch/x86/kernel/e820.c
@@ -1378,8 +1378,8 @@ static unsigned long ram_alignment(resou
 	if (mb < 16)
 		return 1024*1024;
 
-	/* To 32MB for anything above that */
-	return 32*1024*1024;
+	/* To 64MB for anything above that */
+	return 64*1024*1024;
 }
 
 #define MAX_RESOURCE_SIZE ((resource_size_t)-1)