The dmesg from a kernel 2.6.10 with CONFIG_USB_DEBUG
is bellow:
suspended without any device plugged, resumed, plugged
a device in.
uhci_hcd 0000:00:1d.1: suspend_hc
PM: Preparing system for suspend
ehci_hcd 0000:00:1d.7: --> PCI D3hot
uhci_hcd 0000:00:1d.2: suspend_hc
uhci_hcd 0000:00:1d.2: --> PCI D0/legacy
uhci_hcd 0000:00:1d.1: suspend_hc
uhci_hcd 0000:00:1d.1: --> PCI D0/legacy
uhci_hcd 0000:00:1d.0: suspend_hc
uhci_hcd 0000:00:1d.0: --> PCI D0/legacy
PM: Entering state.
hwsleep-0307 [23] acpi_enter_sleep_state: Entering
sleep state [S3]
Back to C!
Warning: CPU frequency is 1700000, cpufreq assumed
1000000 kHz.
Debug: sleeping function called from invalid context
at mm/slab.c:2062
in_atomic():0, irqs_disabled():1
[<c01188f5>] __might_sleep+0x95/0xb0
[<c0216247>] acpi_ut_trace+0x28/0x2e
[<c0140690>] kmem_cache_alloc+0x50/0x60
[<c021d362>] acpi_pci_link_set+0x89/0x26b
[<c021da11>] acpi_pci_link_resume+0x45/0x79
[<c021da88>] irqrouter_resume+0x43/0x5e
[<c025a0c6>] sysdev_resume+0x66/0xc4
[<c025dbb5>] device_power_up+0x5/0xa
[<c0131bd0>] suspend_enter+0x30/0x50
[<c0131c93>] enter_state+0x63/0x90
[<c021a513>] acpi_suspend+0x28/0x35
[<c01d9a44>] copy_from_user+0x54/0x90
[<c021a618>] acpi_system_write_sleep+0x66/0x77
[<c01548e1>] vfs_write+0xd1/0x130
[<c01549f1>] sys_write+0x41/0x70
[<c0102e0d>] sysenter_past_esp+0x52/0x75
hub 4-0:1.0: resubmit --> -108
hub 2-0:1.0: resubmit --> -108
hub 3-0:1.0: resubmit --> -108
PM: Finishing up.
uhci_hcd 0000:00:1d.0: resume from PCI D0 (legacy)
PCI: Setting latency timer of device 0000:00:1d.0 to
64
uhci_hcd 0000:00:1d.1: resume from PCI D0 (legacy)
PCI: Setting latency timer of device 0000:00:1d.1 to
64
uhci_hcd 0000:00:1d.2: resume from PCI D0 (legacy)
PCI: Setting latency timer of device 0000:00:1d.2 to
64
ehci_hcd 0000:00:1d.7: resume from PCI D3hot
ehci_hcd 0000:00:1d.7: reset command 080002 (park)=0
ithresh=8 period=1024 Reset HALT
ehci_hcd 0000:00:1d.7: reset hcs_params 0x103206 dbg=1
cc=3 pcc=2 ordered !ppc ports=6
ehci_hcd 0000:00:1d.7: reset hcc_params 6871 thresh 7
uframes 1024 64 bit addr
ehci_hcd 0000:00:1d.7: capability 0001 at 68
ehci_hcd 0000:00:1d.7: reset command 080002 (park)=0
ithresh=8 period=1024 Reset HALT
PCI: cache line size of 32 is not supported by device
0000:00:1d.7
ehci_hcd 0000:00:1d.7: init command 010001 (park)=0
ithresh=1 period=1024 RUN
ehci_hcd 0000:00:1d.7: USB 2.0 restarted, EHCI 1.00,
driver 26 Oct 2004
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 7 (level,
low) -> IRQ 7
ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 5 (level,
low) -> IRQ 5
PCI: Setting latency timer of device 0000:00:1f.5 to
64
uhci_hcd 0000:00:1d.2: wakeup_hc
uhci_hcd 0000:00:1d.1: wakeup_hc
uhci_hcd 0000:00:1d.0: wakeup_hc
ACPI: PCI interrupt 0000:00:1f.6[B] -> GSI 5 (level,
low) -> IRQ 5
PCI: Setting latency timer of device 0000:00:1f.6 to
64
ACPI: PCI interrupt 0000:02:01.0[A] -> GSI 5 (level,
low) -> IRQ 5
hub 4-0:1.0: state 5 ports 2 chg fffc evt 0006
hub 2-0:1.0: state 5 ports 2 chg fffc evt 0006
hub 3-0:1.0: state 5 ports 2 chg fffc evt 0006
uhci_hcd 0000:00:1d.2: suspend_hc
uhci_hcd 0000:00:1d.1: suspend_hc
uhci_hcd 0000:00:1d.0: suspend_hc
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps
Full Duplex
hub 1-0:1.0: state 5 ports 6 chg ffc0 evt 0010
ehci_hcd 0000:00:1d.7: GetStatus port 4 status 001803
POWER sig=j CSC CONNECT
hub 1-0:1.0: port 4, status 0501, change 0001, 480
Mb/s
hub 1-0:1.0: debounce: port 4: total 100ms stable
100ms status 0x501
ehci_hcd 0000:00:1d.7: port 4 full speed --> companion
ehci_hcd 0000:00:1d.7: GetStatus port 4 status 003801
POWER OWNER sig=j CONNECT
uhci_hcd 0000:00:1d.1: wakeup_hc
[EMAIL PROTECTED] ~]#
--- Alan Stern <[EMAIL PROTECTED]> wrote:
> On Wed, 5 Jan 2005, Paul Ionescu wrote:
>
> > Hi Alan,
> >
> > CONFIG_USB_SUSPEND is not set.
> > Should I try to set it ?
> > I thought it is for something else from its
> attached
> > help, that's why I left it unset.
>
> No, leaving it unset is fine (and probably best, for
> the moment). I just
> wanted to know whether or not you had set it.
>
> Alan Stern
>
>
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