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SubjectRe: [ACPI] [PATCH][RFC] fix ACPI IRQ routing after S3 suspend
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> I can't find anything named "ipw2100" in my kernel source tree...
The driver for the Intel wlan card. See ipw2100.sf.net
>
> > *In single user mode with ipw2100 loaded while S3, IRQ 11 is disabled on
> > resume, IRQ is not disabled
>
> Huh? IRQ(what) is not disabled?
Ooops, I forgot the number.
IRQ 10 is not disabled any more. I verified that it works fine.
>
> Please attach dmesg.
>
> > *When the system is fully booted up, everything seems to work fine.
>
> What do you mean by this? If you suspend when more drivers are loaded,
> things work fine, but don't work when less drivers are loaded?
Yes, I meant this. But it looks like another once-and-never-again success. I
recompiled my kernel and now the ipw2100 resume also fails when all drivers
are loaded.

Is it possible that the IRQ routing is restored too late? ipw2100 reports a
lot of unhandled irqs.

A dmesg is attached.

Stefan
Linux version 2.6.8.1 (root@laptop) (gcc version 3.3.3 20040412 (Gentoo Linux 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #4 Fri Aug 20 12:08:26 CEST 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001ff70000 (usable)
BIOS-e820: 000000001ff70000 - 000000001ff7b000 (ACPI data)
BIOS-e820: 000000001ff7b000 - 000000001ff80000 (ACPI NVS)
BIOS-e820: 000000001ff80000 - 0000000020000000 (reserved)
BIOS-e820: 00000000ff800000 - 00000000ffc00000 (reserved)
BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
511MB LOWMEM available.
On node 0 totalpages: 130928
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 126832 pages, LIFO batch:16
HighMem zone: 0 pages, LIFO batch:1
DMI present.
ACPI: RSDP (v000 ACER ) @ 0x000f60c0
ACPI: RSDT (v001 ACER Cardinal 0x20020302 LTP 0x00000000) @ 0x1ff74c20
ACPI: FADT (v001 ACER Cardinal 0x20020302 PTL 0x0000001e) @ 0x1ff7af64
ACPI: BOOT (v001 ACER Cardinal 0x20020302 LTP 0x00000001) @ 0x1ff7afd8
ACPI: DSDT (v001 ACER Cardinal 0x20020302 MSFT 0x0100000d) @ 0x00000000
ACPI: PM-Timer IO Port: 0x1008
Built 1 zonelists
Kernel command line: root=/dev/hda8 rootfstype=ext3 resume=/dev/hda5 s
Local APIC disabled by BIOS -- reenabling.
Found and enabled local APIC!
Initializing CPU#0
PID hash table entries: 2048 (order 11: 16384 bytes)
Detected 1598.835 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 515504k/523712k available (1522k kernel code, 7464k reserved, 671k data, 140k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 3170.30 BogoMIPS
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: a7e9fbbf 00000000 00000000 00000000
CPU: After vendor identify, caps: a7e9fbbf 00000000 00000000 00000000
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 1024K
CPU: After all inits, caps: a7e9fbbf 00000000 00000000 00000040
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: Intel(R) Pentium(R) M processor 1600MHz stepping 05
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
ACPI: IRQ9 SCI: Edge set to Level Trigger.
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 1598.0418 MHz.
..... host bus clock speed is 99.0901 MHz.
checking if image is initramfs...it isn't (ungzip failed); looks like an initrd
ACPI: Looking for DSDT in initrd ... found (at offset 20)!
found customized DSDT with 23378 bytes!
Freeing initrd memory: 22k freed
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfd732, last bus=2
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040715
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.AGP_._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs *10)
ACPI: PCI Interrupt Link [LNKB] (IRQs *10)
ACPI: PCI Interrupt Link [LNKC] (IRQs *10)
ACPI: PCI Interrupt Link [LNKD] (IRQs *5)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 9 11 12) *10
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 11 12) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 10) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs *10)
ACPI: Embedded Controller [EC0] (gpe 29)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.HUB_._PRT]
ACPI: Power Resource [PFN0] (off)
ACPI: Power Resource [PFN1] (off)
PCI: Using ACPI for IRQ routing
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 5
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 5 (level, low) -> IRQ 5
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 0000:01:00.0[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:02:02.0[A] -> GSI 5 (level, low) -> IRQ 5
ACPI: PCI Interrupt Link [LNKE] enabled at IRQ 11
ACPI: PCI interrupt 0000:02:04.0[A] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:02:06.0[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:02:06.1[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:02:06.2[A] -> GSI 10 (level, low) -> IRQ 10
ACPI: PCI interrupt 0000:02:07.0[A] -> GSI 10 (level, low) -> IRQ 10
Simple Boot Flag at 0x37 set to 0x1
Machine check exception polling timer started.
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
RAMDISK driver initialized: 16 RAM disks of 4096K 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
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
ide0: BM-DMA at 0x1860-0x1867, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0x1868-0x186f, BIOS settings: hdc:DMA, hdd:pio
hda: IC25N040ATCS04-0, ATA DISK drive
Using anticipatory io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: UJDA740 DVD/CDRW, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: 78140160 sectors (40007 MB) w/1768KiB Cache, CHS=65535/16/63, UDMA(100)
/dev/ide/host0/bus0/target0/lun0: p1 p3 < p5 p6 p7 p8 p9 >
mice: PS/2 mouse device common for all mice
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
input: AT Translated Set 2 keyboard on isa0060/serio0
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
speedstep-centrino: found "Intel(R) Pentium(R) M processor 1600MHz": max frequency: 1600000kHz
Resume Machine: resuming from /dev/hda5
Resuming from device unknown-block(3,5)
Resume Machine: This is normal swap space
ACPI: (supports S0 S3 S4 S5)
ACPI wakeup devices:
MDM0 GLAN USB1 USB2 USB3
RAMDISK: Couldn't find valid RAM disk image starting at 0.
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 140k freed
NET: Registered protocol family 1
Adding 1052216k swap on /dev/hda5. Priority:-1 extents:1
EXT3 FS on hda8, internal journal
SCSI subsystem initialized
hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected an Intel 855PM Chipset.
agpgart: Maximum main memory to use for agp memory: 439M
agpgart: AGP aperture is 256M @ 0xe0000000
Synaptics Touchpad, model: 1
Firmware: 5.8
180 degree mounted touchpad
Sensor: 29
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/serio1
kjournald starting. Commit interval 5 seconds
EXT3 FS on hda9, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on hda6, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting. Commit interval 5 seconds
EXT3 FS on hda7, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ieee80211_crypt: registered algorithm 'NULL'
ipw2100: Intel(R) PRO/Wireless 2100 Network Driver, 0.53
ipw2100: Copyright(c) 2003-2004 Intel Corporation
ACPI: PCI interrupt 0000:02:04.0[A] -> GSI 11 (level, low) -> IRQ 11
ipw2100: 0000:02:04.0: Detected at mem: 0xD0206000-0xD0206FFF -> e0931000, irq: 11
wlan0: Using hotplug firmware load.
wlan0: Bound to 0000:02:04.0
NET: Registered protocol family 17
PM: Preparing system for suspend
Stopping tasks: ==========|
wlan0: Going into suspend...
PM: Entering state.
Back to C!

--Here is a uncountable number of "IRQ ignored" messages from the ipw2100 driver--
--I removed the debug line from the driver because it would have overwritten the--
--lines above--

irq 11: nobody cared!
[<c010851a>] __report_bad_irq+0x2a/0x90
[<c0108610>] note_interrupt+0x70/0xb0
[<c01088f0>] do_IRQ+0x120/0x130
[<c0106b40>] common_interrupt+0x18/0x20
[<c012119e>] __do_softirq+0x2e/0x80
[<c0121217>] do_softirq+0x27/0x30
[<c01088cb>] do_IRQ+0xfb/0x130
[<c010c8e0>] time_resume+0x0/0x50
[<c0106b40>] common_interrupt+0x18/0x20
[<c010c8e0>] time_resume+0x0/0x50
[<c010c91d>] time_resume+0x3d/0x50
[<c01f8493>] sysdev_resume+0x103/0x108
[<c01fbf85>] device_power_up+0x5/0xa
[<c01352f6>] suspend_enter+0x36/0x50
[<c01353d9>] enter_state+0x69/0xb0
[<c01dc085>] acpi_suspend+0x3e/0x4d
[<c01dc434>] acpi_system_write_sleep+0x60/0x8b
[<c01dc449>] acpi_system_write_sleep+0x75/0x8b
[<c0156298>] vfs_write+0xb8/0x130
[<c0155839>] filp_close+0x59/0x90
[<c01563e1>] sys_write+0x51/0x80
[<c010615b>] syscall_call+0x7/0xb
handlers:
[<e095b340>] (ipw2100_interrupt+0x0/0xe0 [ipw2100])
Disabling IRQ #11
MCE: The hardware reports a non fatal, correctable incident occurred on CPU 0.
Bank 1: f200000000000135
PM: Finishing up.
psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1
ACPI-0286: *** Error: No installed handler for fixed event [00000002]
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 10 (level, low) -> IRQ 10
wlan0: Coming out of suspend...
wlan0: Using hotplug firmware load.
wlan0: ipw2100_hw_send_command timed out.
wlan0: Failed to start the card.
Restarting tasks... done
wlan0: Hardware fatal error detected.
wlan0: Scheduling firmware restart (0s).
ipw2100: wlan0: Restarting adapter.
wlan0: Using hotplug firmware load.
wlan0: ipw2100_hw_send_command timed out.
wlan0: Failed to start the card.
wlan0: Hardware fatal error detected.
wlan0: Scheduling firmware restart (0s).
ipw2100: wlan0: Restarting adapter.
wlan0: Using hotplug firmware load.
wlan0: ipw2100_hw_send_command timed out.
wlan0: Failed to start the card.
wlan0: Hardware fatal error detected.
wlan0: Scheduling firmware restart (0s).
ipw2100: wlan0: Restarting adapter.
wlan0: Using hotplug firmware load.
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