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[ts-7000] Re: Building your own kernel: why does it behave different

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Subject: [ts-7000] Re: Building your own kernel: why does it behave different
From: "wimpunk" <>
Date: Mon, 16 Jun 2008 16:47:50 -0000
--- In  wimpunk <> wrote:
>
> Hi List,
> 
> We got the kernel sources from
>
ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7200-linux/sources/tskernel-2.4.26-ts11-src.tar.gz,
> untarred it, changed to linux24, copied ts7260 to .config, did a make
> oldconfig and built the kernel with gcc-3.3.4-glibc-2.3.2.  After
> installing my serial ports behaved different on the TS-SER4.
> We put a loopback on COMB of the TS-SER4 board and on one terminal we
> started `cat /dev/tts/1`.  On another port we did `echo hello >
> /dev/tts/1`.  It took 10 seconds before the hello arrived.
> We started the same system with the kernel we found on
>
ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7200-linux/binaries/ts-kernels/zImage-7260-ts11
> and did the same test.  This test worked as a charm: the messages
> arrived directly.
> 
> Which part did we missed?
> 
> Kind regards,
> 
> wimpunk.

We found what went wrong: there was a broken IRQ5 which caused this
problem.


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