Date: Fri, 28 Sep 2012 19:33:37 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-arm@freebsd.org Subject: Re: Unable to boot Pi successfully with ethernet interface configured Message-ID: <201209281933.37291.hselasky@c2i.net> In-Reply-To: <201209281925.13209.hselasky@c2i.net> References: <506327AD.8030103@gmail.com> <1348852114.1113.43.camel@revolution.hippie.lan> <201209281925.13209.hselasky@c2i.net>
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On Friday 28 September 2012 19:25:13 Hans Petter Selasky wrote:
> On Friday 28 September 2012 19:08:34 Ian Lepore wrote:
> > On Fri, 2012-09-28 at 17:57 +0100, Sevan / Venture37 wrote:
> > > Oh cool, will report back once I've had a chance to play tonight.
> > > Btw, I'm using a USB > TTL adapter connected to the GPIO pins which
> > > gives me output from the kernel on booting but I'd like to be able to
> > > login, looking at /etc/ttys ttyv0 is switched on by default, I've
> > > modified it to std.115200 & I see the login prompt now but the
> > > console
> > > locks up & wont take any input.
> >
> > It might be worth trying 3wire.115200 rather than std.115200, in case
> > flow control is why it seems to be locked up.
> >
> > -- Ian
>
> Hi Ian,
>
> # cat /etc/ttys
> ttyU0 "/usr/libexec/getty 3wire.115200" vt100 on secure
> ttyu0 "/usr/libexec/getty 3wire.115200" vt100 on secure
> ttyv0 "/usr/libexec/getty Pc" cons25 on secure
> ttyv1 "/usr/libexec/getty Pc" cons25 on secure
> ttyv2 "/usr/libexec/getty Pc" cons25 on secure
> ttyv3 "/usr/libexec/getty Pc" cons25 on secure
> ttyv4 "/usr/libexec/getty Pc" cons25 on secure
> ttyv5 "/usr/libexec/getty Pc" cons25 on secure
> ttyv6 "/usr/libexec/getty Pc" cons25 on secure
> ttyv7 "/usr/libexec/getty Pc" cons25 on secure
>
> Only USB TTY port works.
>
> If I do something like:
>
> echo "test" > ttyu0
>
> Nothing is printed on the serial port. Don't know why.
>
> ps auxw
>
> root 554 0.0 1.2 10076 1564 u0 Ss+ 5:23PM 0:00.02 /usr/libexec/getty
> 3wire.115200 ttyu0
>
> --HPS
FYI
Top of backtrace for getty looks like this:
sleepq_wait_sig() at sleepq_wait_sig+12
scp=0xc0222dd4 rlv=0xc018fa28 (_cv_wait_sig+472)
rsp=0xc7972c6c rfp=0xc7972c98
r5=0x00000000 r4=0x00000000
_cv_wait_sig() at _cv_wait_sig+12
scp=0xc018f85c rlv=0xc0237ff4 (tty_wait+32)
rsp=0xc7972c9c rfp=0xc7972cb0
r10=0x00000000 r9=0xc101d900
r8=0x00000001 r7=0x00000000 r6=0xc7972db4 r5=0xc0f83600
r4=0x0000000b
tty_wait() at tty_wait+12
scp=0xc0237fe0 rlv=0xc02406f4 (ttydisc_read+432)
rsp=0xc7972cb4 rfp=0xc7972ce4
r5=0x00000001 r4=0xc0f83600
ttydisc_read() at ttydisc_read+12
scp=0xc0240550 rlv=0xc02390f8 (tty_alloc+408)
rsp=0xc7972ce8 rfp=0xc7972d08
r10=0x00000000 r8=0x00000000
r7=0x00000000 r6=0xc7972db4 r5=0xc0f83600 r4=0x00000000
Don't have time to debug right now.
--HPS
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