l4-hackers

l4-hackers@os.inf.tu-dresden.de

2 participants
2880 discussions

Re: L4-Linux
by Jean Wolter 16 Nov '98

16 Nov '98

Harald Fritzsche <Harald.Fritzsche(a)mpd.de> writes: > > Hallo Hackers, > > I found (i hope so) the reason for the kbd: sig_sched: invalid > ext_preempter in > L4-Linux, reported earlier. > > In file : > linux/arch/l4-i386/lib/task.c > in function: > start_linux_server_thread() > is used the variable > l4_threadid_t foo_id > uninitialized. > I set foo_id to L4_INVALID_ID and the sig_sched disappears. But i don't > if this is intended from the authors. Thanks for reporting this. Since L4/Intel never used the value of 'external preempter' we (at least I) have not seen this 'error'. > Also the null-pointer test gives an error message. Could you provide some more details? If everything works correctly you should see a complained from the root pager (something like 'Hmm, strange, that shouldn't happen anymore' on a hercules monitor) and a message from the linux server 'mem_init: null pointer dereference detection seems to work'. If you see 'mem_init: null pointer check failed' then something is wrong and the zero page was not flushed correctly. That's something Michael should be interested in. Jean -- I get up each morning, gather my wits. Pick up the paper, read the obits. if I'm not there I know I'm not dead. So I eat a good breakfast and go back to bed. Peete Seeger

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RE: L4-Linux
by Harald Fritzsche 15 Nov '98

15 Nov '98

Hallo Hackers, I found (i hope so) the reason for the kbd: sig_sched: invalid ext_preempter in L4-Linux, reported earlier. In file : linux/arch/l4-i386/lib/task.c in function: start_linux_server_thread() is used the variable l4_threadid_t foo_id uninitialized. I set foo_id to L4_INVALID_ID and the sig_sched disappears. But i don't if this is intended from the authors. L4Linux boots now up to tty-init and hangs than. Also the null-pointer test gives an error message. Regards Harald Fritzsche

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L4 Alpha available now in PRE-BETA version
by Sebastian Schoenberg 12 Nov '98

12 Nov '98

See http://os.inf.tu-dresden.de/~schoenbg/alpha. Unfortunately, we cannot distribute all required tools, since they need to be purchased from Digtial Equipment (Compaq). Please contact me, if you've problems. Everyone is welcome to contribute and add the missing parts !!!!!!! Sebastian

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by Sam 11 Nov '98

11 Nov '98

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L4-Linux
by OKUJI Yoshinori 10 Nov '98

10 Nov '98

Hello. I've tried to boot L4-Linux for a while, but I cannot boot it with too many error printings. For example, sigma0 denies mapping of address 02666000 No kernel code/data or, kernel info page mappt to: 00001000KDB: sig_sched: invalid ext_preempter My menu.lst is: ---------------------------------------------------------------------- title= Resource Manager + Linux root= (hd0,0) kernel= /l4/rmgr -sigma0 -configfile module= /l4/main -nowait module= /l4/sigma0 module= /l4/rmgr.cfg module= /l4/glinux.gz root=/dev/hda1 ---------------------------------------------------------------------- and my rmgr.cfg is: ---------------------------------------------------------------------- #!rmgr ### this is an example RMGR config file ### first, some global settings # small address spaces have a size of 64 MB small_space_size 0x04000000 # wait for key press after initialization bootwait ### configuration for Sigma0 and RMGR follows # NOTE: it's generally useless to specify any resource allocation # constraints for Sigma0 and RMGR here: most will be ignored because # these tasks statically allocate all of their resources. That's why # we only specify bootstrap parameters here. task sigma0 boot_priority 100 task rmgr boot_priority 100 # enable next line if you want RMGR to run in small address space # 3 #boot_small 3 # XXX: configuration file itself is needed. task modname "cfg" ### configuration for boot modules follows task modname "glinux" # make sure this entry # corresponds to a Linux server boot_small 2 # small address space # 2 boot_priority 100 boot_mcp 0x90 # maximum controlled priority log_mcp 0x90 # logical maximum controlled priority # -- useful if "boot_mcp 0" child max 512 in [10, 1023] # at most 512 child tasks in that range memory in [0, 0x02000000] # use only lower 32 MB RAM high_memory in [0xc0000000, 0xffffffff] # use only hi memory in that range small in [1,3] # allow these small address # spaces to be allocated # enable next line if you want to disallow allocation if IRQs 3 and 4 # (IRQs for serial lines COM2 and COM1) #irq mask 0xffffffe7 end ---------------------------------------------------------------------- Any suggestions? Thanks, OKUJI ---------------------------------------------------------------------- ~o o~ OKUJI Yoshinori <okuji(a)kuicr.kyoto-u.ac.jp> s ) http://duff.kuicr.kyoto-u.ac.jp/~okuji (check "okuji.asc" !)

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by magazines 10 Nov '98

10 Nov '98

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Error while booting fiasco
by Ludger Martin 02 Nov '98

02 Nov '98

Hi, I tryed to build a fiasco boot disk. I followed the instruction on the WWW-page http://os.inf.tu-dresden.de/fiasco/use.html and every thing was fine. So I tryed to boot fiasco but i got the folowing error: KERNEL: no page fault handler for region: 0xfffffffc, error 0x2 Doas anyone havs an idee? Thanks Ludger Martin PS: I working on a P133, 64MB Ram, Adaptec 2940U, Matrox Milenium, 3c905 -- Ludger Martin e-mail: lumartin(a)vlsi.informatik.tu-darmstadt.de

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Hey! look what I found
by battman76＠writeme.com 31 Oct '98

31 Oct '98

Hi, Great stuff @ http://195.64.77.20/gator/ ******************************************************************************* Please reply with subject "remove to be removed" *******************************************************************************

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Re: Fehler beim Booten von Fiasco
by Michael Hohmuth 27 Oct '98

27 Oct '98

Konrad Neitzel <neitzel(a)neitzel.de> writes: > >l4-hackers is an international mailing list; the discussion language > >is English. If you need to discuss something in German, please > >contact <fiasco-core(a)os.inf.tu-dresden.de>. > What is the difference between the two mailling-lists? l4-hackers is a public mailing list while fiasco-core is a private mailing list for the members of the current Fiasco core group. > >Also, I guess I now have to set up a mailing list archive -- the > >issues you raised have popped up several times now. > Maybe add it to the FAQ on the web! I think, that i didn't found it there. Thanks for this suggestion -- I've updated the FAQ. Michael -- hohmuth(a)innocent.com, hohmuth(a)inf.tu-dresden.de http://home.pages.de/~hohmuth/

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None
by bohemia＠compuserve.com 26 Oct '98

26 Oct '98

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