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SubjectRe: [PATCH] Staircase 7.1 for 2.6.7-mm1
Hello folks,

I have tried this staircase patch on 2.6.7-mm1 kernel under NForce2
based system and when playing games the sound stops and skips every
second and moving mouse at the same time makes the response very
slow.The game is Unreal engine based.

This does not happen with the 2.6.7-mm1 from akpm just when the kernel
is patched using the above patch.

System info:

Slackware 10.0-rc2
GCC 3.3.4
Gigabyte 7NNXP mainboard
AMD Athlon 3200+
NForce2 Audio with ALSA 1.0.5

uname :

Linux blaze 2.6.7-mm1 #3 Tue Jun 22 02:26:12 EDT 2004 i686 unknown
unknown GNU/Linux

dmesg:

Linux version 2.6.7-mm1 (root@blaze) (gcc version 3.3.4) #3 Tue Jun 22
02:26:12 EDT 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000003fff0000 (usable)
BIOS-e820: 000000003fff0000 - 000000003fff3000 (ACPI NVS)
BIOS-e820: 000000003fff3000 - 0000000040000000 (ACPI data)
BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
127MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000f5240
On node 0 totalpages: 262128
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 225280 pages, LIFO batch:16
HighMem zone: 32752 pages, LIFO batch:7
DMI 2.3 present.
ACPI: RSDP (v000 Nvidia ) @ 0x000f6bb0
ACPI: RSDT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x01010101) @ 0x3fff3000
ACPI: FADT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x01010101) @ 0x3fff3040
ACPI: MADT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x01010101) @ 0x3fff7680
ACPI: DSDT (v001 NVIDIA AWRDACPI 0x00001000 MSFT 0x0100000c) @ 0x00000000
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 6:10 APIC version 16
ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: Assigned apic_id 2
IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
Enabling APIC mode: Flat. Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Built 1 zonelists
Initializing CPU#0
Kernel command line: auto BOOT_IMAGE=Slackware ro root=801 rootflags=quota
CPU 0 irqstacks, hard=c0434000 soft=c0433000
PID hash table entries: 4096 (order 12: 32768 bytes)
Detected 2205.476 MHz processor.
Using tsc for high-res timesource
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 1034888k/1048512k available (2249k kernel code, 12716k
reserved, 844k data, 168k init, 131008k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 4358.14 BogoMIPS
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: 0383fbff c1c3fbff 00000000 00000000
CPU: After vendor identify, caps: 0383fbff c1c3fbff 00000000 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU: After all inits, caps: 0383fbff c1c3fbff 00000000 00000020
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: AMD Athlon(tm) XP 3200+ stepping 00
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
Generic cache decay timeout: 2 msecs.
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
ENABLING IO-APIC IRQs
init IO_APIC IRQs
IO-APIC (apicid-pin) 2-0, 2-16, 2-17, 2-18, 2-19, 2-20, 2-21, 2-22,
2-23 not connected.
..TIMER: vector=0x31 pin1=2 pin2=-1
..MP-BIOS bug: 8254 timer not connected to IO-APIC
...trying to set up timer (IRQ0) through the 8259A ... failed.
...trying to set up timer as Virtual Wire IRQ... failed.
...trying to set up timer as ExtINT IRQ... works.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 2204.0608 MHz.
..... host bus clock speed is 400.0837 MHz.
checking if image is initramfs...it isn't (ungzip failed); looks like an initrd
Freeing initrd memory: 56k freed
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfabc0, last bus=3
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040326
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
PCI: nForce2 C1 Halt Disconnect fixup
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.HUB0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGPB._PRT]
ACPI: PCI Interrupt Link [LNK1] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNK2] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNK3] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNK4] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNK5] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LUBA] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LUBB] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LMAC] (IRQs 3 4 5 6 7 10 11 12 14 15) *9
ACPI: PCI Interrupt Link [LAPU] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LACI] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LMCI] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LSMB] (IRQs 3 4 5 6 7 10 11 12 14 15) *9
ACPI: PCI Interrupt Link [LUB2] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LFIR] (IRQs 3 4 5 6 7 10 11 12 14 15) *9
ACPI: PCI Interrupt Link [L3CM] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LIDE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [APC1] (IRQs *16), disabled.
ACPI: PCI Interrupt Link [APC2] (IRQs *17), disabled.
ACPI: PCI Interrupt Link [APC3] (IRQs *18), disabled.
ACPI: PCI Interrupt Link [APC4] (IRQs *19), disabled.
ACPI: PCI Interrupt Link [APC5] (IRQs *16), disabled.
ACPI: PCI Interrupt Link [APCF] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCG] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCH] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCI] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCJ] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCK] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCS] (IRQs *23), disabled.
ACPI: PCI Interrupt Link [APCL] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCM] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [AP3C] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCZ] (IRQs 20 21 22) *0, disabled.
SCSI subsystem initialized
PCI: Using ACPI for IRQ routing
ACPI: PCI Interrupt Link [APCS] enabled at IRQ 23
ACPI: PCI interrupt 0000:00:01.1[A] -> GSI 23 (level, high) -> IRQ 23
ACPI: PCI Interrupt Link [APCF] enabled at IRQ 22
ACPI: PCI interrupt 0000:00:02.0[A] -> GSI 22 (level, high) -> IRQ 22
ACPI: PCI Interrupt Link [APCG] enabled at IRQ 21
ACPI: PCI interrupt 0000:00:02.1[B] -> GSI 21 (level, high) -> IRQ 21
ACPI: PCI Interrupt Link [APCL] enabled at IRQ 20
ACPI: PCI interrupt 0000:00:02.2[C] -> GSI 20 (level, high) -> IRQ 20
ACPI: PCI Interrupt Link [APCH] enabled at IRQ 22
ACPI: PCI interrupt 0000:00:04.0[A] -> GSI 22 (level, high) -> IRQ 22
ACPI: PCI Interrupt Link [APCI] enabled at IRQ 21
ACPI: PCI interrupt 0000:00:05.0[A] -> GSI 21 (level, high) -> IRQ 21
ACPI: PCI Interrupt Link [APCJ] enabled at IRQ 20
ACPI: PCI interrupt 0000:00:06.0[A] -> GSI 20 (level, high) -> IRQ 20
ACPI: PCI Interrupt Link [APCM] enabled at IRQ 22
ACPI: PCI interrupt 0000:00:0d.0[A] -> GSI 22 (level, high) -> IRQ 22
ACPI: PCI Interrupt Link [APC3] enabled at IRQ 18
ACPI: PCI interrupt 0000:01:0a.0[A] -> GSI 18 (level, high) -> IRQ 18
ACPI: PCI Interrupt Link [APC1] enabled at IRQ 16
ACPI: PCI interrupt 0000:01:0b.0[A] -> GSI 16 (level, high) -> IRQ 16
ACPI: PCI Interrupt Link [APC2] enabled at IRQ 17
ACPI: PCI interrupt 0000:01:0c.0[A] -> GSI 17 (level, high) -> IRQ 17
ACPI: PCI Interrupt Link [APC4] enabled at IRQ 19
ACPI: PCI interrupt 0000:03:00.0[A] -> GSI 19 (level, high) -> IRQ 19
number of MP IRQ sources: 15.
number of IO-APIC #2 registers: 24.
testing the IO APIC.......................
IO APIC #2......
.... register #00: 02000000
....... : physical APIC id: 02
....... : Delivery Type: 0
....... : LTS : 0
.... register #01: 00170011
....... : max redirection entries: 0017
....... : PRQ implemented: 0
....... : IO APIC version: 0011
.... register #02: 00000000
....... : arbitration: 00
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 000 00 1 0 0 0 0 0 0 00
01 001 01 0 0 0 0 0 1 1 39
02 000 00 1 0 0 0 0 0 0 00
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 001 01 0 0 0 0 0 1 1 51
06 001 01 0 0 0 0 0 1 1 59
07 001 01 1 0 0 0 0 1 1 61
08 001 01 0 0 0 0 0 1 1 69
09 001 01 0 1 0 0 0 1 1 71
0a 001 01 0 0 0 0 0 1 1 79
0b 001 01 0 0 0 0 0 1 1 81
0c 001 01 0 0 0 0 0 1 1 89
0d 001 01 0 0 0 0 0 1 1 91
0e 001 01 0 0 0 0 0 1 1 99
0f 001 01 0 0 0 0 0 1 1 A1
10 001 01 1 1 0 0 0 1 1 D1
11 001 01 1 1 0 0 0 1 1 D9
12 001 01 1 1 0 0 0 1 1 C9
13 001 01 1 1 0 0 0 1 1 E1
14 001 01 1 1 0 0 0 1 1 C1
15 001 01 1 1 0 0 0 1 1 B9
16 001 01 1 1 0 0 0 1 1 B1
17 001 01 1 1 0 0 0 1 1 A9
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ5 -> 0:5
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ9 -> 0:9
IRQ10 -> 0:10
IRQ11 -> 0:11
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
IRQ16 -> 0:16
IRQ17 -> 0:17
IRQ18 -> 0:18
IRQ19 -> 0:19
IRQ20 -> 0:20
IRQ21 -> 0:21
IRQ22 -> 0:22
IRQ23 -> 0:23
.................................... done.
vesafb: framebuffer at 0xc0000000, mapped to 0xf8808000, size 3072k
vesafb: mode is 1024x768x16, linelength=2048, pages=9
vesafb: protected mode interface info at c000:581c
vesafb: scrolling: redraw
vesafb: directcolor: size=0:5:6:5, shift=0:11:5:0
fb0: VESA VGA frame buffer device
Machine check exception polling timer started.
highmem bounce pool size: 64 pages
Total HugeTLB memory allocated, 0
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SGI XFS with ACLs, realtime, large block numbers, no debug enabled
SGI XFS Quota Management subsystem
Initializing Cryptographic API
ACPI: Power Button (FF) [PWRF]
ACPI: Processor [CPU0] (supports C1)
bootsplash 3.1.4-2004/02/19: looking for picture.... silentjpeg size
24219 bytes, found (1024x768, 33509 bytes, v3).
Console: switching to colour frame buffer device 118x36
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
NFORCE2: IDE controller at PCI slot 0000:00:09.0
NFORCE2: chipset revision 162
NFORCE2: not 100% native mode: will probe irqs later
NFORCE2: BIOS didn't set cable bits correctly. Enabling workaround.
NFORCE2: 0000:00:09.0 (rev a2) UDMA133 controller
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:DMA
hda: WDC WD300BB-00AUA1, ATA DISK drive
Using anticipatory io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: IOMEGA ZIP 100 ATAPI, ATAPI FLOPPY drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: Host Protected Area detected.
current capacity is 58631231 sectors (30019 MB)
native capacity is 58633344 sectors (30020 MB)
hda: 58631231 sectors (30019 MB) w/2048KiB Cache, CHS=58165/16/63, UDMA(100)
hda: cache flushes supported
hda: hda1
ACPI: PCI interrupt 0000:01:0a.0[A] -> GSI 18 (level, high) -> IRQ 18
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
<Adaptec 2940 Ultra2 SCSI adapter>
aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs

(scsi0:A:3): 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
Vendor: PLEXTOR Model: CD-ROM PX-40TW Rev: 1.05
Type: CD-ROM ANSI SCSI revision: 02
(scsi0:A:4): 20.000MB/s transfers (20.000MHz, offset 16)
Vendor: PLEXTOR Model: CD-R PX-W1210S Rev: 1.06
Type: CD-ROM ANSI SCSI revision: 02
(scsi0:A:6): 80.000MB/s transfers (40.000MHz, offset 63, 16bit)
Vendor: IBM Model: DDYS-T36950N Rev: S80D
Type: Direct-Access ANSI SCSI revision: 03
scsi0:A:6:0: Tagged Queuing enabled. Depth 32
libata version 1.02 loaded.
Found Controller: IT8212 UDMA/ATA133 RAID Controller
FindDevices: device 0 is IDE
Channel[0] BM-DMA at 0x9800-0x9807
Channel[1] BM-DMA at 0x9808-0x980F
scsi1 : ITE RAIDExpress133
Vendor: ITE Model: IT8212F Rev: 1.3
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sda: 71687340 512-byte hdwr sectors (36704 MB)
SCSI device sda: drive cache: write back
sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 >
Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sdb: 468883200 512-byte hdwr sectors (240068 MB)
sdb: asking for cache data failed
sdb: assuming drive cache: write through
sdb: sdb1
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
input: AT Translated Set 2 keyboard on isa0060/serio0
input: PS/2 Generic Mouse on isa0060/serio1
device-mapper: 4.1.0-ioctl (2003-12-10) initialised: dm@uk.sistina.com
NET: Registered protocol family 2
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
ACPI: (supports S0 S3 S4 S5)
BIOS EDD facility v0.15 2004-May-17, 3 devices found
RAMDISK: Couldn't find valid RAM disk image starting at 0.
XFS mounting filesystem sda1
Ending clean XFS mount for filesystem: sda1
VFS: Mounted root (xfs filesystem) readonly.
Freeing unused kernel memory: 168k freed
Adding 248968k swap on /dev/sda7. Priority:-1 extents:1
Real Time Clock Driver v1.12
XFS mounting filesystem sda2
Ending clean XFS mount for filesystem: sda2
XFS mounting filesystem sda3
Ending clean XFS mount for filesystem: sda3
XFS mounting filesystem sda5
Ending clean XFS mount for filesystem: sda5
XFS mounting filesystem sda6
Ending clean XFS mount for filesystem: sda6
XFS mounting filesystem sdb1
Ending clean XFS mount for filesystem: sdb1
e1000: Ignoring new-style parameters in presence of obsolete ones
Intel(R) PRO/1000 Network Driver - version 5.2.52-k4
Copyright (c) 1999-2004 Intel Corporation.
ACPI: PCI interrupt 0000:01:0b.0[A] -> GSI 16 (level, high) -> IRQ 16
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
ieee1394: Initialized config rom entry `ip1394'
ohci1394: $Rev: 1223 $ Ben Collins <bcollins@debian.org>
ACPI: PCI interrupt 0000:00:0d.0[A] -> GSI 22 (level, high) -> IRQ 22
PCI: Setting latency timer of device 0000:00:0d.0 to 64
ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[22]
MMIO=[e6084000-e60847ff] Max Packet=[2048]
ACPI: PCI interrupt 0000:00:06.0[A] -> GSI 20 (level, high) -> IRQ 20
PCI: Setting latency timer of device 0000:00:06.0 to 64
intel8x0_measure_ac97_clock: measured 49422 usecs
intel8x0: clocking to 47445
forcedeth.c: Reverse Engineered nForce ethernet driver. Version 0.25.
ACPI: PCI interrupt 0000:00:04.0[A] -> GSI 22 (level, high) -> IRQ 22
PCI: Setting latency timer of device 0000:00:04.0 to 64
eth1: no link during initialization.
eth1: forcedeth.c: subsystem: 01458:e000 bound to 0000:00:04.0
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ACPI: PCI interrupt 0000:00:02.2[C] -> GSI 20 (level, high) -> IRQ 20
ehci_hcd 0000:00:02.2: nVidia Corporation nForce2 USB Controller
PCI: Setting latency timer of device 0000:00:02.2 to 64
ehci_hcd 0000:00:02.2: irq 20, pci mem f8bee000
ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 1
PCI: cache line size of 64 is not supported by device 0000:00:02.2
ehci_hcd 0000:00:02.2: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected NVIDIA nForce2 chipset
agpgart: Maximum main memory to use for agp memory: 941M
agpgart: AGP aperture is 256M @ 0xb0000000
ohci1394: fw-host0: SelfID received outside of bus reset sequence
ieee1394: Host added: ID:BUS[0-00:1023] GUID[8a1cc7ffff0020ed]
ip1394: $Rev: 1224 $ Ben Collins <bcollins@debian.org>
ip1394: eth2: IEEE-1394 IPv4 over 1394 Ethernet (fw-host0)
nfs warning: mount version older than kernel
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
eth1: no IPv6 routers present
fglrx: module license 'Proprietary. (C) 2002 - ATI Technologies,
Starnberg, GERMANY' taints kernel.
[fglrx] Maximum main memory to use for locked dma buffers: 929 MBytes.
[fglrx] module loaded - fglrx 3.2.5 [Aug 6 2003] on minor 0
[fglrx:drm_parse_option] *ERROR* "agplock" is not a valid option
[fglrx] Maximum main memory to use for locked dma buffers: 929 MBytes.
[fglrx] AGP detected, AgpState = 0x1f00421b (hardware caps of chipset)
agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode
agpgart: Putting AGP V3 device at 0000:03:00.0 into 8x mode
[fglrx] AGP enabled, AgpCommand = 0x1f004312 (selected caps)
[fglrx] free AGP = 256126976
[fglrx] max AGP = 256126976
[fglrx] free LFB = 126877696
[fglrx] max LFB = 126877696
[fglrx] free Inv = 0
[fglrx] max Inv = 0
[fglrx] total Inv = 0
[fglrx] total TIM = 0
[fglrx] total FB = 0
[fglrx] total AGP = 65536


Also noticed that overall system response is reduced when using
staircase and there seems to be more disk activity and well as lag
when launching applications.

The IO scheduler that i tried is the default one and CFQ which had same effects.

I wanted to provide some feedback on the staircase and its effect on
this kernel.

Regards,

Paul B.
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