Fiasco Kernel: Trap=03

[Marcel Selhorst]

Hi,

In order to increase the Fiasco performance, I removed all debug-stuff from the
kernel. But as soon as I remove the JDB, I receive a kernel trap on all starting
apps:

 2.00 IP=00103480 Trap=03 [Ret/Esc]
 4.00 IP=00112bc0 Trap=03 [Ret/Esc]

Do you know what might cause these traps?

Attached is my fiasco.config and below some more output...

*snip*
Welcome to Fiasco(ia32)!

DD-L4(v2)/ia32 microkernel (C) 1998-2008 TU Dresden

Rev: r6951 compiled with gcc 4.1.2 for Intel Pentium    []


Enabling special fully nested mode for PIC
Using the PIT (i8254) on IRQ 0 for scheduling
Absolute KIP Syscalls using: Sysenter
CPU: GenuineIntel (6:F:A:0) Model: Core 2 (Merom) at 1582 MHz

 128 Entry I TLB (4K pages)
 272 Entry D TLB (4K pages)     48 Entry D TLB (4M pages)
  32 KB L1 I Cache (8-way associative, 64 bytes per line)
  32 KB L1 D Cache (8-way associative, 64 bytes per line)
4096 KB L2 U Cache (16-way associative, 64 bytes per line)

Freeing init code/data: 16384 bytes (4 pages)

Calibrating timer loop... done.
SIGMA0: Hello!
  KIP @ 1000
* 2.00 IP=00103480 Trap=03 [Ret/Esc] *
  Found Fiasco: KIP syscalls: yes
  allocated 4KB for maintenance structures


Roottask.
  Command line found: "(cd)/tcb/roottask -configfile -sigma0 task modname
"bmodfs" attached 8 modules"

 1048127kB (1023MB) total RAM (reported by bootloader)
  980376kB ( 958MB) received RAM from Sigma0
   71732kB (  71MB) reserved RAM for RMGR
  Received I/O ports 0000-ffff
  Attached irqs = [ <!0> 1 <!2> 3 4 5 6 7 8 9 A B C D E F <!10> <!11> ]

Roottask: Parsing config file.
  configured task 0x02 ():
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x04 ():
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (rtc):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:1 mcp:ff prio:10 small:ff mods:0
  configured task 0x00 (names):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (dm_phys):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (simple_ts):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (l4exec):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:1 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (l4io):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:1 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (mgui):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:1 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (loader):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:1 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (l4dope):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:1 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (compmgrlientl4):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (compmgr):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (names_demo):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (bmodfs):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (events):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0
  configured task 0x00 (pmngr):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:a0 small:ff mods:0

Roottask: Parsing command line config.
  configured task 0x00 (bmodfs):
    vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:10 small:ff mods:8

Roottask: Loading 17 modules.
#05: loading "(cd)/tcb/names"
     from [02100000-02143637] to [002d0000-002d6917][002d7000-002e2000]
     entry at 00020068 via trampoline page code
* 4.00 IP=00112bc0 Trap=03 [Ret/Esc] *

[...]
*snip*

-- 
Sirrix AG security technologies - http://www.sirrix.com
Marcel Selhorst      eMail: m.selhorst at sirrix.com
Tel +49(234) 61 0071-199    Fax +49(234) 61 0071-599
get my public key from keyserver, key id: 0x7C9821CC
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