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SubjectRe: [PATCH] Staircase 7.1 for 2.6.7-mm1
Date
Can you please apply the attched patch below. This fixed the problems for me. Plus it also fixes the issue in the mm patch where the clock ticks were going twice as fast as they should be.

diff -urpN linux-2.6.7-old/arch/i386/kernel/mpparse.c linux-2.6.7/arch/i386/kernel/mpparse.c
--- linux-2.6.7-old/arch/i386/kernel/mpparse.c2004-06-22 21:40:01.608433040 -0700
+++ linux-2.6.7/arch/i386/kernel/mpparse.c2004-06-22 21:43:20.943129560 -0700
@@ -1017,7 +1017,6 @@ void __init mp_config_acpi_legacy_irqs (

for (idx = 0; idx < mp_irq_entries; idx++)
if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
-(mp_irqs[idx].mpc_dstapic == ioapic) &&
(mp_irqs[idx].mpc_srcbusirq == i ||
mp_irqs[idx].mpc_dstirq == i))
break;
diff -urpN linux-2.6.7-old/arch/x86_64/kernel/mpparse.c linux-2.6.7/arch/x86_64/kernel/mpparse.c
--- linux-2.6.7-old/arch/x86_64/kernel/mpparse.c2004-06-22 21:40:09.816185272 -0700
+++ linux-2.6.7/arch/x86_64/kernel/mpparse.c2004-06-22 21:43:38.899399792 -0700
@@ -861,7 +861,6 @@ void __init mp_config_acpi_legacy_irqs (

for (idx = 0; idx < mp_irq_entries; idx++)
if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
-(mp_irqs[idx].mpc_dstapic == intsrc.mpc_dstapic) &&
(mp_irqs[idx].mpc_srcbusirq == i ||
mp_irqs[idx].mpc_dstirq == i))
break;
diff -urpN linux-2.6.7-old/include/linux/kernel.h linux-2.6.7/include/linux/kernel.h
--- linux-2.6.7-old/include/linux/kernel.h2004-06-22 21:40:40.858466128 -0700
+++ linux-2.6.7/include/linux/kernel.h2004-06-22 21:44:00.644094096 -0700
@@ -55,7 +55,12 @@ void __might_sleep(char *file, int line)
#endif

#define abs(x) ({\
-typeof(x) __x = (x);\
+int __x = (x);\
+(__x < 0) ? -__x : __x;\
+})
+
+#define labs(x) ({\
+long __x = (x);\
(__x < 0) ? -__x : __x;\
})



Thanks,

Matt H.



On Tuesday 22 June 2004 8:56 pm, Diffie wrote:
> 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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diff -urpN linux-2.6.7-old/arch/i386/kernel/mpparse.c linux-2.6.7/arch/i386/kernel/mpparse.c
--- linux-2.6.7-old/arch/i386/kernel/mpparse.c 2004-06-22 21:40:01.608433040 -0700
+++ linux-2.6.7/arch/i386/kernel/mpparse.c 2004-06-22 21:43:20.943129560 -0700
@@ -1017,7 +1017,6 @@ void __init mp_config_acpi_legacy_irqs (

for (idx = 0; idx < mp_irq_entries; idx++)
if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
- (mp_irqs[idx].mpc_dstapic == ioapic) &&
(mp_irqs[idx].mpc_srcbusirq == i ||
mp_irqs[idx].mpc_dstirq == i))
break;
diff -urpN linux-2.6.7-old/arch/x86_64/kernel/mpparse.c linux-2.6.7/arch/x86_64/kernel/mpparse.c
--- linux-2.6.7-old/arch/x86_64/kernel/mpparse.c 2004-06-22 21:40:09.816185272 -0700
+++ linux-2.6.7/arch/x86_64/kernel/mpparse.c 2004-06-22 21:43:38.899399792 -0700
@@ -861,7 +861,6 @@ void __init mp_config_acpi_legacy_irqs (

for (idx = 0; idx < mp_irq_entries; idx++)
if (mp_irqs[idx].mpc_srcbus == MP_ISA_BUS &&
- (mp_irqs[idx].mpc_dstapic == intsrc.mpc_dstapic) &&
(mp_irqs[idx].mpc_srcbusirq == i ||
mp_irqs[idx].mpc_dstirq == i))
break;
diff -urpN linux-2.6.7-old/include/linux/kernel.h linux-2.6.7/include/linux/kernel.h
--- linux-2.6.7-old/include/linux/kernel.h 2004-06-22 21:40:40.858466128 -0700
+++ linux-2.6.7/include/linux/kernel.h 2004-06-22 21:44:00.644094096 -0700
@@ -55,7 +55,12 @@ void __might_sleep(char *file, int line)
#endif

#define abs(x) ({ \
- typeof(x) __x = (x); \
+ int __x = (x); \
+ (__x < 0) ? -__x : __x; \
+ })
+
+#define labs(x) ({ \
+ long __x = (x); \
(__x < 0) ? -__x : __x; \
})
\
 
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