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SubjectUSB 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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