PCI IRQ routing change broke PCMCIA/prism54 driver
Bjorn Helgaas
bjorn.helgaas at hp.com
Fri Aug 13 19:09:28 EDT 2004
I recently changed the way PCI interrupt routing is done. We used to
go through all the ACPI _PRTs at boot-time, programming IOSAPICs and
setting pci_dev->irq. That all happened before any drivers got involved.
Now (in 2.6.8-rc3-mm2[1] and later), we don't do anything at boot-time, and
all this interrupt routing happens when drivers call pci_enable_device().
This has exposed some problems, typically things like drivers that
don't call pci_enable_device(), or drivers that look at pci_dev->irq
before calling pci_enable_device(). So I added a flag "pci=routeirq"
that forces the old behavior of doing the interrupt routing before
the drivers.
One problem is that prism54 quit working. As far as I can see,
prism54 and yenta_socket are doing the right thing. But there's
a lot of interrupt magic in there that I don't understand at all.
So does all this ring any bells? Does pcmcia need something
special in this area?
[1] ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.8-rc4/2.6.8-rc4-mm1/broken-out/remove-unconditional-pci-acpi-irq-routing.patch
---------- Forwarded Message ----------
Subject: pci=routeirq fixed my device...
Date: Friday 13 August 2004 3:55 pm
From: Cyrille Chépélov <cyrille at chepelov.org>
To: bjorn.helgaas at hp.com
Hi Bjorn,
per your instructions in the boot sequence, here's my lspci output. My
WiFi network card stopped working when I upgraded to 2.6.8-rc4-mm1 (was
fine in rc2-mm1). Adding pci=routeirq made it work again.
The device driver is in drivers/net/wireless, it's the prism54.
Thanks in advance!
-- Cyrille
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0000:00:00.0 Host bridge: Intel Corp. 82852/855GM Host Bridge (rev 02)
0000:00:00.1 System peripheral: Intel Corp. 855GM/GME GMCH Memory I/O Control Registers (rev 02)
0000:00:00.3 System peripheral: Intel Corp. 855GM/GME GMCH Configuration Process Registers (rev 02)
0000:00:02.0 VGA compatible controller: Intel Corp. 82852/855GM Integrated Graphics Device (rev 02)
0000:00:02.1 Display controller: Intel Corp. 82852/855GM Integrated Graphics Device (rev 02)
0000:00:1d.0 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
0000:00:1d.2 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
0000:00:1d.7 USB Controller: Intel Corp. 82801DB/DBM (ICH4/ICH4-M) USB 2.0 EHCI Controller (rev 03)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev 83)
0000:00:1f.0 ISA bridge: Intel Corp. 82801DBM LPC Interface Controller (rev 03)
0000:00:1f.1 IDE interface: Intel Corp. 82801DBM (ICH4) Ultra ATA Storage Controller (rev 03)
0000:00:1f.3 SMBus: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
0000:00:1f.6 Modem: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03)
0000:02:04.0 CardBus bridge: Texas Instruments PCI1520 PC card Cardbus Controller (rev 01)
0000:02:04.1 CardBus bridge: Texas Instruments PCI1520 PC card Cardbus Controller (rev 01)
0000:02:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
0000:07:00.0 Network controller: Intersil Corporation Intersil ISL3890 [Prism GT/Prism Duette] (rev 01)
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served)
BIOS-e820: 0000000000100000 - 000000001eee0000 (usable)
BIOS-e820: 000000001eee0000 - 000000001eeeb000 (ACPI data)
BIOS-e820: 000000001eeeb000 - 000000001ef00000 (ACPI NVS)
BIOS-e820: 000000001ef00000 - 0000000020000000 (reserved)
BIOS-e820: 00000000fec10000 - 00000000fec20000 (reserved)
BIOS-e820: 00000000ff800000 - 00000000ffc00000 (reserved)
BIOS-e820: 00000000fffffc00 - 0000000100000000 (reserved)
494MB LOWMEM available.
found SMP MP-table at 000f63f0
On node 0 totalpages: 126688
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 122592 pages, LIFO batch:16
HighMem zone: 0 pages, LIFO batch:1
DMI present.
ACPI: RSDP (v000 PTLTD ) @ 0x000f6420
ACPI: RSDT (v001 PTLTD Montara 0x06040000 LTP 0x00000000) @ 0x1eee5e05
ACPI: FADT (v001 Acer Yuhina 0x06040000 PTL 0x00000001) @ 0x1eeeaed2
ACPI: BOOT (v001 PTLTD $SBFTBL$ 0x06040000 LTP 0x00000001) @ 0x1eeeafd8
ACPI: DSDT (v001 ANNI Yuhina 0x06040000 MSFT 0x0100000e) @ 0x00000000
ACPI: PM-Timer IO Port: 0x1008
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
SMP mptable: bad signature [0x0]!
BIOS bug, MP table errors detected!...
... disabling SMP support. (tell your hw vendor)
Built 1 zonelists
No local APIC present or hardware disabled
Initializing CPU#0
Kernel command line: root=/dev/hda1 ro pmdisk=/dev/hda3 resume=/dev/hda3 vga=0x318 pci=routeirq
CPU 0 irqstacks, hard=c0422000 soft=c0421000
PID hash table entries: 2048 (order 11: 16384 bytes)
Detected 2498.179 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 498352k/506752k available (2057k kernel code, 7952k reserved, 961k data, 160k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 4915.20 BogoMIPS (lpj=2457600)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: bfebf9ff 00000000 00000000 00000000
CPU: After vendor identify, caps: bfebf9ff 00000000 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: After all inits, caps: bfebf9ff 00000000 00000000 00000080
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Thermal monitoring enabled
CPU: Intel(R) Pentium(R) 4 CPU 2.50GHz stepping 09
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfd6b4, last bus=2
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040715
ACPI: IRQ9 SCI: Edge set to Level Trigger.
ACPI: Interpreter enabled
ACPI: Using PIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCIB._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 10 11) *5
ACPI: PCI Interrupt Link [LNKB] (IRQs *10 11)
ACPI: PCI Interrupt Link [LNKC] (IRQs 10 11) *4
ACPI: PCI Interrupt Link [LNKD] (IRQs *11)
ACPI: PCI Interrupt Link [LNKE] (IRQs 10 11) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs *10 11)
ACPI: PCI Interrupt Link [LNKG] (IRQs *10 11)
ACPI: PCI Interrupt Link [LNKH] (IRQs *10 11)
ACPI: Embedded Controller [EC] (gpe 28)
Linux Plug and Play Support v0.97 (c) Adam Belay
PnPBIOS: Scanning system for PnP BIOS support...
PnPBIOS: Found PnP BIOS installation structure at 0xc00f6450
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xa5da, dseg 0x400
pnp: 00:0b: ioport range 0x4d0-0x4d1 has been reserved
pnp: 00:0b: ioport range 0x1000-0x105f could not be reserved
pnp: 00:0b: ioport range 0x1060-0x107f has been reserved
pnp: 00:0b: ioport range 0x1180-0x11bf has been reserved
PnPBIOS: 19 nodes reported by PnP BIOS; 19 recorded by driver
PCI: Using ACPI for IRQ routing
** Routing PCI interrupts for all devices because "pci=routeirq"
** was specified. If this was required to make a driver work,
** please email the output of "lspci" to bjorn.helgaas at hp.com
** so I can fix the driver.
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10
ACPI: PCI interrupt 0000:00:02.0[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10
ACPI: PCI interrupt 0000:00:1d.2[C] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 10
ACPI: PCI interrupt 0000:00:1d.7[D] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10
ACPI: PCI interrupt 0000:00:1f.3[B] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:00:1f.6[B] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKF] enabled at IRQ 10
ACPI: PCI interrupt 0000:02:04.0[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKG] enabled at IRQ 10
ACPI: PCI interrupt 0000:02:04.1[B] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:02:0a.0[A] -> GSI 11 (level, low) -> IRQ 11
agpgart: Detected an Intel 855 Chipset.
agpgart: Maximum main memory to use for agp memory: 423M
agpgart: Detected 16252K stolen memory.
agpgart: AGP aperture is 128M @ 0xe8000000
vesafb: probe of vesafb0 failed with error -6
Simple Boot Flag at 0x3c set to 0x1
audit: initializing netlink socket (disabled)
audit(1092433738.189:0): initialized
Total HugeTLB memory allocated, 0
Initializing Cryptographic API
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Real Time Clock Driver v1.12
Linux agpgart interface v0.100 (c) Dave Jones
i8042.c: Detected active multiplexing controller, rev 1.1.
serio: i8042 AUX0 port at 0x60,0x64 irq 12
serio: i8042 AUX1 port at 0x60,0x64 irq 12
serio: i8042 AUX2 port at 0x60,0x64 irq 12
serio: i8042 AUX3 port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing enabled
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
ACPI: PCI interrupt 0000:00:1f.6[B] -> GSI 10 (level, low) -> IRQ 10
Using anticipatory io scheduler
FDC 0 is a National Semiconductor PC87306
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Probing IDE interface ide0...
hda: IC25N020ATMR04-0, ATA DISK drive
Probing IDE interface ide1...
hdc: QSI CD-RW/DVD-ROM SBW-242, ATAPI CD/DVD-ROM drive
Probing IDE interface ide2...
ide2: Wait for ready failed before probe !
Probing IDE interface ide3...
ide3: Wait for ready failed before probe !
Probing IDE interface ide4...
ide4: Wait for ready failed before probe !
Probing IDE interface ide5...
ide5: Wait for ready failed before probe !
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 1024KiB
hda: 39070080 sectors (20003 MB) w/1740KiB Cache, CHS=16383/255/63
hda: cache flushes supported
hda: hda1 hda2 hda3
mice: PS/2 mouse device common for all mice
input: AT Translated Set 2 keyboard on isa0060/serio0
Synaptics Touchpad, model: 1
Firmware: 5.8
180 degree mounted touchpad
Sensor: 18
new absolute packet format
Touchpad has extended capability bits
-> 4 multi-buttons, i.e. besides standard buttons
-> multifinger detection
-> palm detection
input: SynPS/2 Synaptics TouchPad on isa0060/serio4
input: AT Translated Set 2 keyboard on isa0060/serio0
input: PC Speaker
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
ACPI: (supports S0 S3 S4 S5)
ACPI wakeup devices:
LID LANC MODM
ReiserFS: hda1: found reiserfs format "3.6" with standard journal
ReiserFS: hda1: using ordered data mode
ReiserFS: hda1: journal params: device hda1, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda1: checking transaction log (hda1)
input: AT Translated Set 2 keyboard on isa0060/serio0
ReiserFS: hda1: replayed 28 transactions in 1 seconds
ReiserFS: hda1: Using r5 hash to sort names
VFS: Mounted root (reiserfs filesystem) readonly.
Freeing unused kernel memory: 160k freed
hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hda: drive_cmd: error=0x04 { DriveStatusError }
ide: failed opcode was: 0xef
hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hda: drive_cmd: error=0x04 { DriveStatusError }
ide: failed opcode was: 0xef
Adding 987988k swap on /dev/hda3. Priority:-1 extents:1
hdc: ATAPI 16X DVD-ROM CD-R/RW drive, 2048kB Cache
Uniform CD-ROM driver Revision: 3.20
8139too Fast Ethernet driver 0.9.27
ACPI: PCI interrupt 0000:02:0a.0[A] -> GSI 11 (level, low) -> IRQ 11
eth0: RealTek RTL8139 at 0xdf85c000, 00:0a:e4:48:9d:84, IRQ 11
eth0: Identified 8139 chip type 'RTL-8101'
8139cp: 10/100 PCI Ethernet driver v1.2 (Mar 22, 2004)
ReiserFS: hda2: found reiserfs format "3.6" with standard journal
ReiserFS: hda2: using ordered data mode
ReiserFS: hda2: journal params: device hda2, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda2: checking transaction log (hda2)
ReiserFS: hda2: Using r5 hash to sort names
ReiserFS: hda2: Removing [36724 6483 0x0 SD]..done
ReiserFS: hda2: Removing [36724 5934 0x0 SD]..done
ReiserFS: hda2: There were 2 uncompleted unlinks/truncates. Completed
Linux Kernel Card Services
options: [pci] [cardbus] [pm]
ACPI: PCI interrupt 0000:02:04.0[A] -> GSI 10 (level, low) -> IRQ 10
Yenta: CardBus bridge found at 0000:02:04.0 [1025:0039]
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:04.0, mfunc 0x00921b22, devctl 0x64
Yenta: ISA IRQ mask 0x0088, PCI irq 10
Socket status: 30000006
ACPI: PCI interrupt 0000:02:04.1[B] -> GSI 10 (level, low) -> IRQ 10
Yenta: CardBus bridge found at 0000:02:04.1 [1025:0039]
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:02:04.1, mfunc 0x00921b22, devctl 0x64
Yenta: ISA IRQ mask 0x0088, PCI irq 10
Socket status: 30000020
Loaded prism54 driver, version 1.2
PCI: Enabling device 0000:07:00.0 (0000 -> 0002)
ACPI: PCI interrupt 0000:07:00.0[A] -> GSI 10 (level, low) -> IRQ 10
eth1: islpci_open()
eth1: resetting device...
eth1: uploading firmware...
eth1: firmware uploaded done, now triggering reset...
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ACPI: PCI interrupt 0000:00:1d.7[D] -> GSI 10 (level, low) -> IRQ 10
ehci_hcd 0000:00:1d.7: Intel Corp. 82801DB/DBM (ICH4/ICH4-M) USB 2.0 EHCI Controller
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: irq 10, pci mem dfaaa000
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
PCI: cache line size of 128 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: 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
ts: Compaq touchscreen protocol output
USB Universal Host Controller Interface driver v2.2
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 10 (level, low) -> IRQ 10
uhci_hcd 0000:00:1d.0: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: irq 10, io base 00001820
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 11 (level, low) -> IRQ 11
uhci_hcd 0000:00:1d.1: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: irq 11, io base 00001840
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:1d.2[C] -> GSI 10 (level, low) -> IRQ 10
uhci_hcd 0000:00:1d.2: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: irq 10, io base 00001860
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
usb 2-1: new full speed USB device using address 2
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
eth1: no IPv6 routers present
ub: sizeof ub_scsi_cmd 60 ub_dev 900
uba: device 2 capacity nsec 245825 bsize 512
uba: was not changed
uba: uba1
usbcore: registered new driver ub
hw_random: RNG not detected
ICH4: IDE controller at PCI slot 0000:00:1f.1
PCI: Enabling device 0000:00:1f.1 (0005 -> 0007)
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 10 (level, low) -> IRQ 10
ICH4: chipset revision 3
ICH4: not 100% native mode: will probe irqs later
ICH4: port 0x01f0 already claimed by ide0
ICH4: port 0x0170 already claimed by ide1
ICH4: neither IDE port enabled (BIOS)
ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 10 (level, low) -> IRQ 10
PCI: Setting latency timer of device 0000:00:1f.5 to 64
intel8x0_measure_ac97_clock: measured 49268 usecs
intel8x0: clocking to 48000
ACPI: PCI interrupt 0000:00:1f.6[B] -> GSI 10 (level, low) -> IRQ 10
PCI: Setting latency timer of device 0000:00:1f.6 to 64
Disabled Privacy Extensions on device c03a7d60(lo)
nfs warning: mount version older than kernel
ACPI: Battery Slot [BAT0] (battery present)
ACPI: AC Adapter [AC] (off-line)
ACPI: Processor [CPU0] (supports C1 C2)
ACPI: Power Button (FF) [PWRF]
ACPI: Lid Switch [LID]
ACPI: Sleep Button (CM) [SLP2]
ACPI: Thermal Zone [THRS] (46 C)
ACPI: Thermal Zone [THRC] (46 C)
cs: IO port probe 0x0100-0x04ff: excluding 0x378-0x37f
cs: IO port probe 0x0800-0x08ff: excluding 0x800-0x80f
cs: IO port probe 0x0c00-0x0cff: clean.
cs: IO port probe 0x0a00-0x0aff: clean.
eth0: link down
NET: Registered protocol family 23
pnp: Device 00:16 activated.
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA]
lp0: using parport0 (interrupt-driven).
eth0: no IPv6 routers present
NET: Registered protocol family 15
Initializing IPsec netlink socket
Bluetooth: Core ver 2.6
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP ver 2.3
Bluetooth: L2CAP socket layer initialized
Bluetooth: RFCOMM ver 1.3
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM TTY layer initialized
ACPI: PCI interrupt 0000:00:02.0[A] -> GSI 10 (level, low) -> IRQ 10
[drm] Initialized i830 1.3.2 20021108 on minor 0: Intel Corp. 82852/855GM Integrated Graphics Device
[drm] Initialized i830 1.3.2 20021108 on minor 1: Intel Corp. 82852/855GM Integrated Graphics Device (#2)
mtrr: base(0xe8020000) is not aligned on a size(0x300000) boundary
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