L4linux Installation Problem(Double Page Fault)

[Adam Lackorzynski]

On Fri Mar 20, 2009 at 02:04:29 -0700, Sid Yu wrote:
> 
> > Looking closer, please start vmlinuz instead of vmlinux.
> 
> Thank you very much, Adam. I have overcome the previous double page fault
> problems after replacing "vmliux" with "vmlinuz". However, I got new ones.
> 
> ...........
> l4lx | Starting L4FB via DOpE
> l4lx | DOpE is not registerd at names!
> l4lx | DOpE no available!
> l4lx | Starting L4FB via CON
> l4lx | CON not availble!
> l4lx | l4lx_irq_dev_startup_hw: Starting IRQ thread for IRQ 15
> l4lx | l4lx_thread_create: Created thread 0d.07(IRQ15)
> l4lx | l4lx_irq_dev_startup_hw: Starting IRQ thread for IRQ 5
> l4lx | l4lx_thread_create: Created thread 0d.08(IRQ16)
> 
> the console just pends here, making no progress. It complains L4FB couldn't
> find DOpe or CON. Are these graphic system required? I have seen some

No, L4Linux can also run using VGA + PS/2, given it has access.

> materials saying it's also ok using a (virtual) serial console. 

And the serial console too.

> So I have changed my configuration files to add CON support for it. The bold
> highlights changes with respect to previous one.

No bold in text :)

> Grub Config:
> --------------------
> title L4Linux (Fiasco/L4Env/L4Linux)
> 	kernel (hd0,0)/boot/l4linux/bootstrap -modaddr=0x02000000
> 	module (hd0,0)/boot/l4linux/main -nokdb -serial_esc
> 	module (hd0,0)/boot/l4linux/sigma0
> 	module (hd0,0)/boot/l4linux/roottask task modname "loader" boot_priority
> 0xA0 allow_cli task modname "bmodfs" attached 6 modules
> 	module (hd0,0)/boot/l4linux/names
> 	module (hd0,0)/boot/l4linux/log
> 	module (hd0,0)/boot/l4linux/dm_phys --isa=0x00800000
> 	module (hd0,0)/boot/l4linux/simple_ts -t 300
> 	module (hd0,0)/boot/l4linux/rtc
> 	module (hd0,0)/boot/l4linux/l4io
> 	module (hd0,0)/boot/l4linux/con
> 	module (hd0,0)/boot/l4linux/bmodfs
> 		module (hd0,0)/boot/l4linux/cfg/l4linux26.cfg
> 		module (hd0,0)/boot/l4linux/libloader.s.so
> 		module (hd0,0)/boot/l4linux/libld-l4.s.so
> 		module (hd0,0)/boot/l4linux/vmlinuz
> 		module (hd0,0)/boot/l4linux/drops-rd.rd
> 		module (hd0,0)/boot/l4linux/run
> 	module (hd0,0)/boot/l4linux/loader --fprov=BMODFS run l4linux26.cfg
>         vbeset 0x117
> -------------------------
> 
> l4linux26.cfg:
> -------------------------
> sleep 1
> task "vmlinuz" "mem=64M load_ramdisk=1 ramdisk_size=16384 root=/dev/ram
> l4env_rd=drops-rd.rd"
> 	allow_cli
> 	priority 0xA0
> 	all_sects_writable
> 	allow_vga
> -------------------------
> 
> However, the result is as following:
> 
> con | Character size is 8x14, font has 256 characters
> con | [B.2] l4con/server/src/ARCH-x86/gmode-arch.c:141:init_gmode():
> con | Did not find VBE info block in multiboot
> con | GRUB has to set the video mode with the vbeset command.
> con | 
> con | Alternatively, try passing the --vbemode=<mode> switch.
> con |
> 
> --PANIC,'g' for exit-------------------------------------------IP:00b08627
> [con.main](b.02) jdb:
> 
> While I have specified the vbeset command in Grub, the error still occurs.
> The only explanation is that my Grub doesn't recognize this command. I'm
> just using my original Fedora 10 Grub(version 0.97) and didn't do any of
> your grub patches. That's reason that I'm using "kernel
> (hd0,0)/boot/l4linux/bootstrap -modaddr=0x02000000", instead of a separate
> "modaddr 0x02000000" line. So this time again I just tried to using module
> (hd0,0)/boot/l4linux/con --vbemode=0x117" as the console prompted, but it
> doesn't work and things seem to become worse. The console loops to
> print:"ROOT: Sending ports 10f1-10f4 to task #0b", never stops.

Adding 'task modname "con" allow_cli' to the roottask command line might
help. The reason is that the con does not have access to those ports.

> So do I need to patch your grub patches(Download Grub 0.97 source, patches
> your diff provided in http://os.inf.tu-dresden.de/~adam/grub/, compile and
> reinstall my Grub?) or is there another way to do it using my original grub
> just like "modaddr" did? 

Try the above.



Adam
-- 
Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/