Re: [19.666764] Disabling IRQ #23

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From: Bjorn Helgaas
Date: Wednesday, September 17, 2008 - 8:04 am

On Wednesday 10 September 2008 01:06:52 pm Justin Mattock wrote:

Can you confirm whether this is really a regression?  That is,
was it working in 2.6.26 and broken in 2.6.27-rc6?  We want to
fix all bugs, of course, but it is much more important to fix
regressions than it is to fix things that have always been
broken.

I noticed several errors related to the ehci controller in your
log.  I'm not a USB expert, so I cc'd some folks who are.

[   12.140614] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[   12.149917] ehci_hcd 0000:00:1d.7: setting latency timer to 64
[   12.159523] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[   12.168858] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned
bus number 5
[   12.182246] ehci_hcd 0000:00:1d.7: debug port 1
[   12.191574] ehci_hcd 0000:00:1d.7: cache line size of 32 is not supported
[   12.200970] ehci_hcd 0000:00:1d.7: irq 23, io mem 0x50405400
[   12.250079] usb 3-2: new full speed USB device using uhci_hcd and address 2
[   12.270062] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00,
driver 10 Dec 2004
[   12.279955] usb usb5: configuration #1 chosen from 1 choice
[   12.289791] hub 5-0:1.0: USB hub found
[   12.299531] hub 5-0:1.0: 8 ports detected

[   13.300084] usb 5-4: new high speed USB device using ehci_hcd and address 3

[   13.461784] usb 5-4: configuration #1 chosen from 1 choice

[   15.346683] drivers/hid/usbhid/hid-core.c: couldn't find an input interrupt endpoint

[   16.068174] ehci_hcd 0000:00:1d.7: HC died; cleaning up

[   16.155047] hub 5-0:1.0: hub_port_status failed (err = -19)
[   16.166001] hub 5-0:1.0: connect-debounce failed, port 4 disabled
[   16.176912] usb 5-4: USB disconnect, address 3

[   18.821797] irq 23: nobody cared (try booting with the "irqpoll" option)

[   25.276333] usb 4-1: usbfs: USBDEVFS_CONTROL failed cmd hid2hci rqt
64 rq 0 len 0 ret -84

[   25.450080] usb 4-1: USB disconnect, address 2

My guess is that because of the "HC died" situation, we unregistered
the ehci handler on IRQ 23, then got another interrupt from the
controller.



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Messages in current thread:
[19.666764] Disabling IRQ #23, Justin Mattock, (Wed Sep 10, 12:06 pm)
Re: [19.666764] Disabling IRQ #23, Yinghai Lu, (Wed Sep 10, 12:36 pm)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Wed Sep 10, 12:39 pm)
Re: [19.666764] Disabling IRQ #23, Bjorn Helgaas, (Wed Sep 17, 8:04 am)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Wed Sep 17, 10:13 am)
Re: [19.666764] Disabling IRQ #23, Bjorn Helgaas, (Wed Sep 17, 2:48 pm)
Re: [19.666764] Disabling IRQ #23, Justin P. Mattock, (Wed Sep 17, 3:18 pm)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Wed Sep 17, 5:14 pm)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Wed Sep 17, 9:44 pm)
Re: [19.666764] Disabling IRQ #23, David Brownell, (Thu Sep 18, 2:09 am)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Thu Sep 18, 9:57 am)
Re: [19.666764] Disabling IRQ #23, April Tsui, (Thu Sep 18, 2:56 pm)
Re: [19.666764] Disabling IRQ #23, Alan Stern, (Thu Sep 18, 3:23 pm)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Thu Sep 18, 5:32 pm)
Re: [19.666764] Disabling IRQ #23, Alan Stern, (Fri Sep 19, 9:08 am)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Fri Sep 19, 9:41 am)
Re: [19.666764] Disabling IRQ #23, Alan Stern, (Fri Sep 19, 10:05 am)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Fri Sep 19, 11:18 am)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Fri Sep 19, 2:20 pm)
Re: [19.666764] Disabling IRQ #23, David Brownell, (Fri Sep 19, 5:56 pm)
Re: [19.666764] Disabling IRQ #23, Justin Mattock, (Fri Sep 19, 6:19 pm)