linux-kernel - USB Serial device disconnect causes IRQ disable after using ehci controller halted

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Date:	Tue, 26 Aug 2008 12:00:11 -0700 (PDT)
From:	amruth <amruth_pv@...oo.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Oliver Neukum <oliver@...kum.org>,
	USB list <linux-usb@...r.kernel.org>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: USB Serial device disconnect causes IRQ disable after using ehci controller halted

Hi
Alan
I am posting below detail log after adding debug messages
[  307.695452] magtek 5-1:1.0: Magtek 75/Excella USB card reader converter detected
[  307.695452] drivers/usb/serial/magtek.c: magtek_startup
[  307.695452] usb 5-1: link qh0-00ff/ded67080 start 0 [1/0 us]
[  307.695452] drivers/usb/serial/magtek.c: magtek_startup - usb_submit_urb(int urb)
[  307.695452] usb 5-1: Magtek 75/Excella USB card reader converter now attached to ttyUSB0
[  307.695452] drivers/usb/core/inode.c: creating file '006'
[  307.696371] usb 5-1: New USB device found, idVendor=0801, idProduct=2231
[  307.696377] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  307.696383] usb 5-1: Product: STX
[  307.696387] usb 5-1: Manufacturer: MagTek
[  307.696391] usb 5-1: SerialNumber: STX001
[  307.700515] ehci_hcd 0000:00:1d.7: irq status c028 masked 20
[  307.700530] ehci_hcd 0000:00:1d.7: hcd state 1
[  307.700536] ehci_hcd 0000:00:1d.7: hcd state 1
[  307.700544] ehci_hcd 0000:00:1d.7: hcd state 1
[  308.850650] ehci_hcd 0000:00:1d.7: irq status 600b masked 3
[  308.850658] ehci_hcd 0000:00:1d.7: hcd state 1
[  308.850665] ehci_hcd 0000:00:1d.7: devpath 1 ep2in 3strikes
[  308.850670] drivers/usb/serial/magtek.c: magtek_read_int_callback - port 0
[  308.850683] usb 5-1: unlink qh0-00ff/ded67080 start 0 [1/0 us]
[  308.850846] usb 5-1: link qh0-00ff/ded67080 start 0 [1/0 us]
[  308.851537] usb 5-1: unlink qh0-00ff/ded67080 start 0 [1/0 us]
[  308.853487] ehci_hcd 0000:00:1d.7: handshake failed: controller halted
[  308.853487] Pid: 0, comm: swapper Not tainted 2.6.26EHCIDBG #3
[  308.853487]  [<e08405aa>] handshake_on_error_set_halt+0x45/0x51 [ehci_hcd]
[  308.853487]  [<e08405d6>] disable_periodic+0x20/0x40 [ehci_hcd]
[  308.853487]  [<e0841fb4>] ehci_work+0x5e6/0x6ad [ehci_hcd]
[  308.853487]  [<c0424230>] ? printk+0x15/0x17
[  308.853487]  [<e0845c7e>] ehci_irq+0x28a/0x2fd [ehci_hcd]
[  308.853487]  [<e090005d>] ? cdrom_newpc_intr+0x52e/0x544 [ide_cd_mod]
[  308.853487]  [<c042addd>] ? lock_timer_base+0x1f/0x3e
[  308.853487]  [<c05764c4>] usb_hcd_irq+0x27/0x58
[  308.853487]  [<c044b852>] handle_IRQ_event+0x21/0x48
[  308.853487]  [<c044c9fb>] handle_fasteoi_irq+0x77/0xac
[  308.853487]  [<c044c984>] ? handle_fasteoi_irq+0x0/0xac
[  308.853487]  [<c040598c>] do_IRQ+0xa9/0xd1
[  308.853487]  [<c04025f2>] ? default_idle+0x0/0x42
[  308.853487]  [<c040429b>] common_interrupt+0x23/0x28
[  308.853487]  [<c04025f2>] ? default_idle+0x0/0x42
[  308.853487]  [<c041007b>] ? acpi_save_state_mem+0xa/0x12b
[  308.853487]  [<c040261f>] ? default_idle+0x2d/0x42
[  308.853487]  [<c040256d>] cpu_idle+0x8b/0x9f
[  308.853487]  [<c061f329>] start_secondary+0x156/0x15b
[  308.853487]  =======================
[  308.853487] ehci_hcd 0000:00:1d.7: hcd state 0
[  308.853487] ehci_hcd 0000:00:1d.7: hcd state 0
[  308.853487] ehci_hcd 0000:00:1d.7: HC died; cleaning up
[  308.854983] hub 5-0:1.0: state 0 ports 8 chg 0000 evt 0000
[  308.854983] usb 5-1: USB disconnect, address 6
[  308.854983] usb 5-1: unregistering device
[  308.854983] usb 5-1: usb_disable_device nuking all URBs
[  308.854983] usb 5-1: unregistering interface 5-1:1.0
[  308.854983] drivers/usb/serial/magtek.c: magtek_shutdown
[  308.854983] magtek ttyUSB0: Magtek 75/Excella USB card reader converter now disconnected from ttyUSB0
[  308.854983] magtek 5-1:1.0: device disconnected
[  308.854983] usb 5-1:1.0: uevent
[  308.854983] usb 5-1: uevent
[  309.153998] irq 23: nobody cared (try booting with the "irqpoll" option)
[  309.154006] Pid: 0, comm: swapper Not tainted 2.6.26EHCIDBG #3
[  309.154027]  [<c044c0cc>] __report_bad_irq+0x2e/0x6f
[  309.154042]  [<c044c2e4>] note_interrupt+0x1d7/0x20b
[  309.154054]  [<c044b852>] ? handle_IRQ_event+0x21/0x48
[  309.154068]  [<c044ca0f>] handle_fasteoi_irq+0x8b/0xac
[  309.154078]  [<c044c984>] ? handle_fasteoi_irq+0x0/0xac
[  309.154087]  [<c040598c>] do_IRQ+0xa9/0xd1
[  309.154096]  [<c04025f2>] ? default_idle+0x0/0x42
[  309.154107]  [<c040429b>] common_interrupt+0x23/0x28
[  309.154112]  [<c04025f2>] ? default_idle+0x0/0x42
[  309.154132]  [<c040261f>] ? default_idle+0x2d/0x42
[  309.154579]  [<c040256d>] cpu_idle+0x8b/0x9f
[  309.154579]  [<c061f329>] start_secondary+0x156/0x15b
[  309.154579]  =======================
[  309.154579] handlers:
[  309.154579] [<c057649d>] (usb_hcd_irq+0x0/0x58)
[  309.154579] Disabling IRQ #23



Thanks
Amruth p.v





      

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