My problem of I/O port
dingy09 at gmail.com
Wed Sep 2 05:48:57 CEST 2009
I have built a parport server based on dde, and test it through on
fiasco. Now I want to booting it together with l4linux, but there are
And I have some questions to ask:
1. I used the l4linux-2.6.30 kernel, now to booting it besides
fiasco default config, there is
[ *] Enable I/O port protection
feature must need, isn't it?
It not needed in l4linux-2.6.23 kernel or earlier.
2. Will this feature prevent the other server to access to the io
I seems meeting this problem, my parport server(#b) want to
access the port 077a, but system say the owner is #a(l4io), even I set the
parport priority higher than l4io, it also the same problem. the last error
message is like follow:
server | <6>parport0: PC-style at 0x378 [PCSPP,TRISTATE]
server | <6>parport0: irq 7 detected
ROOT: Cannot send port 077a to task #0b, owner is #a
ROOT: task B.00 at 01804299 is trying to get I/O port 077a
allocated by task 0b.
How can I do could make the parport server run together with the
l4linux, or to make it could access the port it needed?
Any help is precious.
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