firmware update

David McCullough david.mccullough at accelerated.com
Wed Dec 23 03:58:42 PST 2015


Bjørn Mork wrote the following:
> dailijin  <dailijin126 at 126.com> writes:
> 
> > tvupack tvu # cat /boot/config-3.8.0-23-generic  | grep PREEMPT 
> > # CONFIG_PREEMPT_RCU is not set
> > CONFIG_PREEMPT_NOTIFIERS=y
> > # CONFIG_PREEMPT_NONE is not set
> > CONFIG_PREEMPT_VOLUNTARY=y
> > # CONFIG_PREEMPT is not set
> 
> That's normal and fine.
> 
> 
> >>> Dec 23 03:45:09 tvupack kernel: INFO: task slqssdk:1555 blocked for more than 120 seconds.
> >>> Dec 23 03:45:09 tvupack kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> >>> Dec 23 03:45:09 tvupack kernel: slqssdk         D 0000000000000000     0  1555   1390 0x00000000
> >>> Dec 23 03:45:09 tvupack kernel:  ffff8801065ab958 0000000000000086 ffff8801065ab978 ffff8801190eb1a0
> >>> Dec 23 03:45:09 tvupack kernel:  ffff8801065abfd8 ffff8801065abfd8 ffff8801065abfd8 0000000000013f40
> >>> Dec 23 03:45:09 tvupack kernel:  ffff880119b50000 ffff8801067d9740 ffff8801067d9740 ffff88010fe05968
> >>> Dec 23 03:45:09 tvupack kernel: Call Trace:
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff816e0669>] schedule+0x29/0x70
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff816e091e>] schedule_preempt_disabled+0xe/0x10
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff816df597>] __mutex_lock_slowpath+0xd7/0x150
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff8151084e>] ? usb_alloc_urb+0x1e/0x50
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff816df1aa>] mutex_lock+0x2a/0x50
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffffa029e10c>] Gobi_dtr_rts+0x6c/0x130 [GobiSerial]
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffffa03b2725>] ? usb_serial_generic_submit_read_urb+0x25/0x30 [usbserial]
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffffa03b058f>] serial_dtr_rts+0x7f/0x90 [usbserial]
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff81429044>] tty_port_block_til_ready+0x174/0x320
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff8107fc10>] ? add_wait_queue+0x60/0x60
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffffa03b04f2>] ? serial_activate+0x82/0xa0 [usbserial]
> >>> Dec 23 03:45:09 tvupack kernel:  [<ffffffff814293eb>] tty_port_open+0xbb/0xe0
> 
> 
> There is obviously something going wrong here.  Any chance you can
> recreate this problem on a (semi-)recent kernel?
> 
> The serial_dtr_rts function was renamed to serial_port_dtr_rts in v3.10,
> so you are obviously using something older than that.  There have been
> quite a few cleanups and code refactoring in this area since then. So I
> don't think there is any point wasting time on debugging this on such an
> old kernel.

I am running 4.1.

Cheers,
Davidm

-- 
David McCullough,  david.mccullough at accelerated.com,   Ph: 0410 560 763


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