Compiling it for PC (windows) would take me bit of time to set up virtual linux
along the compiler with all itty nity gritty pieces of development
tools.Though, that is pretty correct way of double checking.
Regarding ttyAM1, I think that it is part of TS7300 or something, while TS7800
uses ttyS0(1) ports.
Yup, I disabled getty on ttyS1 but still get the same fault.
Thank you Bretton
--- In "Breton M. Saunders" <>
wrote:
>
> Try compiling the code on the PC and testing that it can run there
> without a segmentation fault.
>
> Generally bugs with non-hardware specific code will show up on linux on
> the PC. Therefore, you can test your code using valgrind; which I
> thoroughly recommend.
>
> Incidentally, shouldn't you be using ttyAM0 / ttyAM1?
>
> And you definitely must remove ttyAM1/0 references from inittab; as
> you'll end up with a console on something you're expecting to do i/o
> with hardware over.
>
> -bms
>
> Damir Dzemidzic wrote:
> >
> >
> > Donal, I suppose you are quite right I should return value even at the
> > end of main(). But it was not the cause of the problem. The
> > optimization is not cause either as Jim recommended to check. I had
> > the optimization set to NULL. Jim, thanks for suggestion of using
> > sleep(1) but did not gimme an insight either. So here is the strace
> > output
> >
> >
> > write(1, "Creating com port\n", 18Creating com port
> > ) = 18
> > write(1, "Created port OK\n", 16Created port OK
> > ) = 16
> > open("/dev/ttyS1", O_RDWR|O_NONBLOCK|O_NOCTTY) = 3
> > fcntl64(3, F_SETFL, O_RDONLY) = 0
> > rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
> > rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
> > rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
> > nanosleep({1, 0}, {1, 0}) = 0
> > write(1, "COM2 port has been sucessfully o"..., 74COM2 port has
> > been sucessfully
> > opened. Descriptor is: 3Opened com port OK
> > ) = 74
> > ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, {B115200 -opost -isig
> > -icanon -echo ...}
> > ) = 0
> > ioctl(3, TCFLSH, 0) = 0
> > ioctl(3, SNDCTL_TMR_START or TCSETS, {B115200 -opost -isig -icanon
> > -echo ...}) =
> > 0
> > write(3, "Testing", 7) = 7
> > close(3) = 0
> > write(1, "Closed com port\n", 16Closed com port
> > ) = 16
> > --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> > +++ killed by SIGSEGV +++
> >
> > Looks not much to me.
> >
> > One thing left is that I have't commented out the getty process on
> > ttyS1 in the /etc/inittab. Perhaps closing fd, may interfere with
> > it. But actual terminal ttyS1 has no problems of working with user.
> >
> >
> >
> >
> >
> >
> >
>
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