I'm using the Bttv-V4L2 driver for a video-recording project: I make a 5
minutes recording then I exit the program, wait some seconds, make
another recording and so on. Doing this I encounter the following
problems: each time I restart the recording the driver issues messages
like the following ones:
May 24 16:30:01 urania kernel: V4L2: Fault on write ioctl 0x40045613
copying data from user buffer
May 24 16:30:02 urania kernel: bttv_v4l2: Warning- munmap() called while
streaming
This seems apparently not affecting the normal behaviour of the program
but after a variable number of recording the driver issues messages like
these:
May 24 11:08:02 urania kernel: bttv_v4l2: IRQ -> SCERR
May 24 11:08:02 urania last message repeated 14 times
May 24 11:08:02 urania kernel: bttv_v4l2: Warning- munmap() called while
streaming
May 24 11:08:02 urania kernel: bttv_v4l2: risc_irq not responding ->
doing it the hard way
In this case the system becomes very very slow and sometime it's
impossible continuing to record images.
I think I forgot to make some routines call for stopping the risc
machines in a clean way before closing the driver or something about
this but I don't know exactly what I have to do.
Any hints?
Thanks in advance.
Massimo
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Massimo Massa - FOVEA s.r.l.
Via della Crocetta, 15
16122 Genova - Italia
tel: +39 10 846731 fax: +39 10 8467350
e-mail: [EMAIL PROTECTED]
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