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[View More]friend in Alaska
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I was woundering why the TCB size in ix86 L4 is 1K, how much of
the stack at the end of the TCB is actually used? Could the TCB be reduced
to 512K? If not why not?
Cheers Adam
Hi,
I just succeeded in booting Linux on Fiasco. Just in case anyone
is interested, here are the warnings I got while booting:
(both packages are of 12/07/98, compiled under Linux)
-----------------------------------
Welcome to Fiasco!
DD-L4/x86 microkernel (c) 1998 TU Dresden - Dec 24 1998
linux_startup
checking OFFS_TSS: ok, OFFS_TSS still 536
detect processorsetup_paging
end linux_startup, calling start_kernel
setup_arch
sigma0 denies mapping of address 00001000
No kernel code/data
sigma0 …
[View More]denies mapping of address 00002000
No kernel code/data
[...]
sigma0 denies mapping of address 00149000
No kernel code/data
mb4 already requested
4m page received
sigma0 denies mapping of address 00ccc000
No kernel code/data
Memory end: 00ccc000
kernel info page mappt to: 00001000
root: rcvd 2, 424a25
Hmm, strange, that shouldn't happen anymore
Root: null pointer deref in 5.3 at addr: 2 and eip: 424a25 (pte: 27)
-------------------------------------
Then Linux tries to initialize the serial driver and stops because I
logged this messages over serial cable. When I boot it without cable,
everything works fine and stable, I just get *a lot of*
wake_idle_if_needed: ipc failed
messages, but this seems to be no problem. The only thing I`ve found
that doesn`t work is XFree86, when I try to start it, the machine
freezes with blank screen. Today I`ll try to get pcmcia running.
Ok, now my questions :)
1) Are there any documents you suggest reading, besides the L4 Reference
Manual? Any document would be of use, since I don`t have a clue on
L4, but I want to play around with it. Is there anything like
"L4 for dummies" ? :)
2) Is Fiasco capable of running multiple servers at once? I tried to
start two instances of this helloworld-server, but it crashed
immediately.
3) Is there a simple way to reboot the system after Fiasco startet?
My Laptop has no reset button :)
Ok, I`ve already stolen enough of your time, many thanks for being
patient with me :)
MfG
Benjamin
[View Less]
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OKUJI Yoshinori <okuji(a)kuicr.kyoto-u.ac.jp> writes:
> I tried new snapshot, 0.5.1, but I couldn't boot it. After L4-Linux
> bootstrap, it couldn't detect my NE2000-compatible card and it
> couldn't accept input from keyboard. The "login: " prompt appeared,
> but I could do nothing, because console and network didn't work. My
> CPU is AMD K6, but I don't think it is the source. My system is based
> on Slackware-3.5.0, and is it possible that it may influece L4-Linux?
…
[View More]
Did this work before?
One thing which won't work is loading original Linux kernel modules
into L4Linux. From Linux' perspective, L4Linux is a different
architecture, and modules have to be recompiled for L4Linux.
Did you try loading the NE2000 driver as an original Linux kernel
module? In this case, I recommend you compile the driver into your
L4Linux kernel (or as an L4Linux module).
Michael
PS: Next week I'll be on vacation, and I won't answer my email. I'll
try to catch up afterwards, so please keep sending in bug reports.
They're appreciated a lot!
--
hohmuth(a)innocent.com, hohmuth(a)inf.tu-dresden.de
http://home.pages.de/~hohmuth/
[View Less]
Sed,
thanks for your report! I'll to reproduce the problem when I return
from my vacation in ten days.
roux(a)ecoledoc.lip6.fr (Cedric ROUX) writes:
[...]
> When i run it under fiasco, it runs a little, then it blocks, so i press
> ctrl+c, that nornmally should end up the program and give me back the
> shell, but not, it just continues a little more, and stops again, and so on
> until the end of the program.
> Then i see a lot of "Aiee: scheduling in interrupt 00422ba (activ …
[View More]10000)"
> with sometimes a 0 in place of the 10000.
This looks like a scheduling problem in Fiasco: An interrupt thread is
still active while the Linux scheduling code is run. This should not
happen because interrupt threads have a higher priority and never
block. Interesting.
[...]
> Third, but it was before patch3,
> i ran through my hd, making ls, cat, rm and so on, and at one time,
> after a ls, and before the result being displayed, i receive this message
> "page fault in signal handler". Maybe patch3 fixes that, huh ?
Maybe yes, but I'm not sure.
> And last, i normally have shift+page-up to see last lines, but it does
> not works under fiasco (maybe kernel 2.0.21 doesn't handle it anyway).
> Little problem, but problem.
This doesn't work because hardware scrolling is disabled in L4Linux.
We did this because L4Linux shares the console's video memory with
Fiasco/L4 and potentially other L4 tasks.
> I soon gonna be able to debug with a second machine, so my next reports
> will be better.
That's cool!
Michael
--
hohmuth(a)innocent.com, hohmuth(a)inf.tu-dresden.de
http://home.pages.de/~hohmuth/
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Hello FIASCO people,
here are some more bugs (yes, it is possible :)).
First of all,
when you press shift+print-screen (or control+print-screen, don't
remember what bugs), everything blocks with a message that i forgot
to write or that i've lost (i am in exams, my brain becomes a little
strange, i forget things).
If one could tried it to see if it happens on others machines.
Note: it was before i applied path3 and patch4, so maybe it solves
the problem. It might be a sigfault in a cli section,…
[View More] but nothing
is sure.
Second,
i could run koules with svgalib !! but, a program of mine don't
work. If someone could try it to see if it's my machine or what ?
available at :
http://www.ecoledoc.lip6.fr/~roux/demo/lost.tar.gz
and a binary is provided at :
http://www.ecoledoc.lip6.fr/~roux/demo/lost
If you could try it with a clean linux to see what should be
the correct behavior, then try it with fiasco.
It's just a poor animation with some sound (maybe sound is necessary for it
to behave bad, don't know).
When i run it under fiasco, it runs a little, then it blocks, so i press
ctrl+c, that nornmally should end up the program and give me back the
shell, but not, it just continues a little more, and stops again, and so on
until the end of the program.
Then i see a lot of "Aiee: scheduling in interrupt 00422ba (activ 10000)"
with sometimes a 0 in place of the 10000.
This works too with patch3, i don't have put patch4, but don't think
it is relevent.
And when i press Esc, it simply reboots.
Third, but it was before patch3,
i ran through my hd, making ls, cat, rm and so on, and at one time,
after a ls, and before the result being displayed, i receive this message
"page fault in signal handler". Maybe patch3 fixes that, huh ?
And last, i normally have shift+page-up to see last lines, but it does
not works under fiasco (maybe kernel 2.0.21 doesn't handle it anyway).
Little problem, but problem.
I soon gonna be able to debug with a second machine, so my next reports
will be better.
See you,
Sed.
[View Less]
Hello.
I tried new snapshot, 0.5.1, but I couldn't boot it. After L4-Linux
bootstrap, it couldn't detect my NE2000-compatible card and it
couldn't accept input from keyboard. The "login: " prompt appeared,
but I could do nothing, because console and network didn't work. My
CPU is AMD K6, but I don't think it is the source. My system is based
on Slackware-3.5.0, and is it possible that it may influece L4-Linux?
Thanks,
OKUJI
-------------------------------------------------------------------…
[View More]---
~o o~ OKUJI Yoshinori <okuji(a)kuicr.kyoto-u.ac.jp>
s ) http://duff.kuicr.kyoto-u.ac.jp/~okuji (check "okuji.asc" !)
[View Less]
Harald Fritzsche <Harald.Fritzsche(a)mpd.de> writes:
> i have tried the patch also.
Thanks for trying it!
> It seems, that l4linux-2.0.21 is more stable than before.
> Also the module package seems to work (dummy.o ne.o and related). That means
> in my case that these modules are autoloaded (ping works). But i haven´t a
> real network.
>
> Occasianally the system does not reached the login, unfortunatly i have no
> copy of the given message (probably rcv fault, …
[View More]during /sbin/init).
If you get a message, it would be interesting to know what it says
exactly.
> Other times the reboot command causes a seg fault (null pointer
> derefenrence) after the message "Send all processes kill sig" (This is
> reported earlier).
I haven't ever seen this. Do you get a register/stack dump from
L4Linux? In this case it should be possible to find the location of
the page fault (with System.map and disassembly output
("objdump -ld vmlinux")).
Michael
--
hohmuth(a)innocent.com, hohmuth(a)inf.tu-dresden.de
http://home.pages.de/~hohmuth/
[View Less]