Re: CVS commit: src/sys/arch/i386/i386

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, May 09, 2009 at 06:58:46AM +0000, Andrew Doran wrote:
> > > xen isn't as vulnerable to the LDT/segreg problem as native x86 because
> > > it's not MP and doesn't do kernel preemption. For the time being I guess
> > > it would suffice to #ifdef the 'cli'.
> > 
> > That's not enough to make the binary run: even with the cli commented
> > out the test binary segfaults.
> > There may be something else wrong, I'll try to look further.
> > 
> > Any way to use gdb to see what it's doing ? The NetBSD/i386 doesn't want
> > to load this executable ...
> 
> Can you ktrace it? At least we then can see if it's hitting the syscall
> path.


here's what I get:
 11703      1 ktrace   EMUL  "netbsd"
 11703      1 ktrace   RET   ktrace 0
 11703      1 ktrace   CALL  execve(0xbf7ffc27,0xbf7feb68,0xbf7feb70)
 11703      1 ktrace   NAMI  "./architextIndex"
 11703      1 architextIndex EMUL  "netbsd"
 11703      1 architextIndex RET   syscall JUSTRETURN
 11703      1 architextIndex PSIG  SIGSEGV SIG_DFL: code=SEGV_ACCERR, 
addr=0xacb94, trap=4)
 11703      1 architextIndex NAMI  "architextIndex.core"

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           
Manuel.Bouyer%lip6.fr@localhost
     NetBSD: 26 ans d'experience feront toujours la difference
--