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    SubjectRe: ACPI power off regression in 2.6.23-rc8 (NOT in rc7)
    On Tue, 25 Sep 2007 08:51:09 +0200 Damien Wyart <damien.wyart@free.fr> wrote:

    > Hello,
    >
    > After testing rc8, I noticed that I couldn't power off the computer
    > directly, it only got halted and I had to press the power button
    > manually. Just before displaying "System halted", the following message
    > is displayed:
    >
    > ACPI : PCI interrupt for device 0000:02:08.0 disabled
    >
    > I had to first revert 5a50fe709d527f31169263e36601dd83446d5744 then
    > f216cc3748a3a22c2b99390fddcdafa0583791a2 (handling of Sx states) to
    > recover previous behaviour.

    Let's add some cc's.

    > Attached are the dmesg for rc7, rc8 and rc8 with the two patches
    > reverted.

    "diff -u dmesg.rc8_revert dmesg.rc8" says:

    --- dmesg.rc8_revert 2007-09-25 00:31:33.000000000 -0700
    +++ dmesg.rc8 2007-09-25 00:31:30.000000000 -0700
    @@ -1,4 +1,4 @@
    -Linux version 2.6.23-rc8-25092007dw (root@brouette) (gcc version 4.2.1 (Debian 4.2.1-5)) #2 SMP Tue Sep 25 08:31:09 CEST 2007
    +Linux version 2.6.23-rc8-25092007dw (root@brouette) (gcc version 4.2.1 (Debian 4.2.1-5)) #1 SMP Tue Sep 25 07:27:10 CEST 2007
    BIOS-provided physical RAM map:
    BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
    BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
    @@ -72,18 +72,18 @@
    console [tty0] enabled
    Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
    Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
    -Memory: 2074780k/2096592k available (2175k kernel code, 20712k reserved, 815k data, 192k init, 1179088k highmem)
    +Memory: 2074780k/2096592k available (2175k kernel code, 20712k reserved, 816k data, 192k init, 1179088k highmem)
    virtual kernel memory layout:
    fixmap : 0xfff9b000 - 0xfffff000 ( 400 kB)
    pkmap : 0xff800000 - 0xffc00000 (4096 kB)
    vmalloc : 0xf8800000 - 0xff7fe000 ( 111 MB)
    lowmem : 0xc0000000 - 0xf8000000 ( 896 MB)
    .init : 0xc03f0000 - 0xc0420000 ( 192 kB)
    - .data : 0xc031fd5c - 0xc03ebd04 ( 815 kB)
    - .text : 0xc0100000 - 0xc031fd5c (2175 kB)
    + .data : 0xc031fcd4 - 0xc03ebd04 ( 816 kB)
    + .text : 0xc0100000 - 0xc031fcd4 (2175 kB)
    Checking if this processor honours the WP bit even in supervisor mode... Ok.
    SLUB: Genslabs=22, HWalign=64, Order=0-1, MinObjects=4, CPUs=2, Nodes=1
    -Calibrating delay using timer specific routine.. 5987.66 BogoMIPS (lpj=2993833)
    +Calibrating delay using timer specific routine.. 5987.60 BogoMIPS (lpj=2993802)
    Mount-cache hash table entries: 512
    CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 0000041d 00000000 00000000 00000000
    monitor/mwait feature present.
    @@ -104,7 +104,7 @@
    Booting processor 1/1 eip 2000
    CPU 1 irqstacks, hard=c0426000 soft=c0424000
    Initializing CPU#1
    -Calibrating delay using timer specific routine.. 5984.18 BogoMIPS (lpj=2992093)
    +Calibrating delay using timer specific routine.. 5984.16 BogoMIPS (lpj=2992084)
    CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 0000041d 00000000 00000000 00000000
    monitor/mwait feature present.
    CPU: Trace cache: 12K uops, L1 D cache: 16K
    @@ -116,7 +116,7 @@
    CPU1: Intel P4/Xeon Extended MCE MSRs (12) available
    CPU1: Thermal monitoring enabled
    CPU1: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 03
    -Total of 2 processors activated (11971.85 BogoMIPS).
    +Total of 2 processors activated (11971.77 BogoMIPS).
    ENABLING IO-APIC IRQs
    ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
    checking TSC synchronization [CPU#0 -> CPU#1]: passed.
    @@ -279,6 +279,7 @@
    EXT3-fs: mounted filesystem with ordered data mode.
    VFS: Mounted root (ext3 filesystem) readonly.
    Freeing unused kernel memory: 192k freed
    +input: PC Speaker as /devices/platform/pcspkr/input/input4
    sr0: scsi3-mmc drive: 1x/48x cd/rw xa/form2 cdda tray
    Uniform CD-ROM driver Revision: 3.20
    sr 1:0:0:0: Attached scsi CD-ROM sr0
    @@ -287,7 +288,6 @@
    usbcore: registered new interface driver usbfs
    usbcore: registered new interface driver hub
    usbcore: registered new device driver usb
    -input: PC Speaker as /devices/platform/pcspkr/input/input4
    parport_pc 00:0a: reported by Plug and Play ACPI
    parport0: PC-style at 0x378 (0x778), irq 7, using FIFO [PCSPP,TRISTATE,COMPAT,ECP]
    USB Universal Host Controller Interface driver v3.0
    @@ -299,46 +299,42 @@
    usb usb1: configuration #1 chosen from 1 choice
    hub 1-0:1.0: USB hub found
    hub 1-0:1.0: 2 ports detected
    -ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 20
    -PCI: Setting latency timer of device 0000:00:1d.1 to 64
    -uhci_hcd 0000:00:1d.1: UHCI Host Controller
    -uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
    -uhci_hcd 0000:00:1d.1: irq 20, io base 0x0000ff60
    +ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 20
    +PCI: Setting latency timer of device 0000:00:1d.7 to 64
    +ehci_hcd 0000:00:1d.7: EHCI Host Controller
    +ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 2
    +ehci_hcd 0000:00:1d.7: debug port 1
    +PCI: cache line size of 128 is not supported by device 0000:00:1d.7
    +ehci_hcd 0000:00:1d.7: irq 20, io mem 0xffa80800
    +ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
    usb usb2: configuration #1 chosen from 1 choice
    hub 2-0:1.0: USB hub found
    -hub 2-0:1.0: 2 ports detected
    +hub 2-0:1.0: 8 ports detected
    +ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 21
    +PCI: Setting latency timer of device 0000:00:1d.1 to 64
    +uhci_hcd 0000:00:1d.1: UHCI Host Controller
    +uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
    +uhci_hcd 0000:00:1d.1: irq 21, io base 0x0000ff60
    +usb usb3: configuration #1 chosen from 1 choice
    +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 18 (level, low) -> IRQ 17
    PCI: Setting latency timer of device 0000:00:1d.2 to 64
    uhci_hcd 0000:00:1d.2: UHCI Host Controller
    -uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
    +uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
    uhci_hcd 0000:00:1d.2: irq 17, io base 0x0000ff40
    -usb usb3: configuration #1 chosen from 1 choice
    -hub 3-0:1.0: USB hub found
    -hub 3-0:1.0: 2 ports detected
    -usb 1-1: new full speed USB device using uhci_hcd and address 2
    +usb usb4: configuration #1 chosen from 1 choice
    +hub 4-0:1.0: USB hub found
    +hub 4-0:1.0: 2 ports detected
    ACPI: PCI Interrupt 0000:00:1d.3[A] -> GSI 16 (level, low) -> IRQ 19
    PCI: Setting latency timer of device 0000:00:1d.3 to 64
    uhci_hcd 0000:00:1d.3: UHCI Host Controller
    -uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4
    +uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 5
    uhci_hcd 0000:00:1d.3: irq 19, io base 0x0000ff20
    -usb usb4: configuration #1 chosen from 1 choice
    -hub 4-0:1.0: USB hub found
    -hub 4-0:1.0: 2 ports detected
    -ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 21
    -PCI: Setting latency timer of device 0000:00:1d.7 to 64
    -ehci_hcd 0000:00:1d.7: EHCI Host Controller
    -ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5
    -ehci_hcd 0000:00:1d.7: debug port 1
    -PCI: cache line size of 128 is not supported by device 0000:00:1d.7
    -ehci_hcd 0000:00:1d.7: irq 21, io mem 0xffa80800
    -ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
    -usb 1-1: configuration #1 chosen from 1 choice
    -usb 1-1: can't set config #1, error -71
    usb usb5: configuration #1 chosen from 1 choice
    hub 5-0:1.0: USB hub found
    -hub 5-0:1.0: 8 ports detected
    -usb 1-1: USB disconnect, address 2
    -usb 1-1: new full speed USB device using uhci_hcd and address 3
    +hub 5-0:1.0: 2 ports detected
    +usb 1-1: new full speed USB device using uhci_hcd and address 2
    usb 1-1: configuration #1 chosen from 1 choice
    Adding 1212896k swap on /dev/sdb7. Priority:-1 extents:1 across:1212896k
    EXT3 FS on sdb2, internal journal
    -
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