Dear all, I get an error during L4linux boot when I enter the debugger (using ESC) and resume:
Aborted L4linux due to CLI/STI at 0x534911. When I disassemble this using gdb: (gdb) disassemble 0x534911 Dump of assembler code for function cmpxchg8b_emu: 0x00534910 <+0>: pushf 0x00534911 <+1>: cli 0x00534912 <+2>: cmp (%esi),%eax 0x00534914 <+4>: jne 0x534922 <cmpxchg8b_emu+18> 0x00534916 <+6>: cmp 0x4(%esi),%edx 0x00534919 <+9>: jne 0x534924 <half_same> 0x0053491b <+11>: mov %ebx,(%esi) 0x0053491d <+13>: mov %ecx,0x4(%esi) 0x00534920 <+16>: popf 0x00534921 <+17>: ret 0x00534922 <+18>: mov (%esi),%eax 0x00534924 <+0>: mov 0x4(%esi),%edx 0x00534927 <+3>: popf 0x00534928 <+4>: ret When I built l4linux, I had to disable CONFIG_X86_CMPXCHG, CONFIG_CMPXCHG_LOCAL and CONFIG_X86_CMPXCHG64 despite building for the Pentium because my processor does not support PAE (which is the option that enables this). I am guessing This is the reason it tries to emulate the CMPXCHG instructions. What is the correct l4linux configuration to use for a machine that does not support any of the atomic instructions like CMPXCHG8, ATOMIC, etc.? Thanks, ramya _______________________________________________ l4-hackers mailing list [email protected] http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers
