Michel D�nzer wrote:
> 
> On Sam, 2002-02-16 at 16:50, Joe Krahn wrote:
> > >
> > > > Here's an example backtrace, that seems to me like somthing
> > > > deeper than XFree86 code being at fault:
> > > >
> > > > (gdb) bt
> > > > #0  0x40139012 in __writev (fd=20, vector=0xbffff6fc, count=1)
> > > >     at ../sysdeps/unix/sysv/linux/writev.c:51
> > > > #1  0x080d5ad4 in _XSERVTransSocketWritev ()
> > > > #2  0x080d61cc in _XSERVTransWritev ()
> > > > #3  0x080d0248 in StandardFlushClient ()
> > > > #4  0x080cea8f in CloseDownConnection ()
> > > > #5  0x080b2f69 in CloseDownClient ()
> > > > #6  0x080addbd in Dispatch ()
> > > > #7  0x080bd6d8 in main ()
> > > > #8  0x4006e627 in __libc_start_main (main=0x80bd1f0 <main>, argc=1,
> > > >     ubp_av=0xbffffc04, init=0x806cc5c <_init>, fini=0x816f94c <_fini>,
> > > >     rtld_fini=0x4000dcd4 <_dl_fini>, stack_end=0xbffffbfc)
> > > >     at ../sysdeps/generic/libc-start.c:129
> > >
> > > A backtrace from the server would probably be more interesting, or does
> > > only the client hang?
> > This is a backtrace from the server,
> 
> D'oh, should have noticed. :)
> 
> > but it's not the XFree86 gdb, so it won't catch module bugs.
> >
> > I tried installing RedHat's RawHide XFree86-4.2, and the same crash
> > occurs. I'll re-install mine, which has debug symbols, and try
> > the XFree86 gdb on it.
> 
> Modules aren't even involved here; the hang occurs in a glibc function
> so it seems the problem isn't in the X server at all.
> 
> --
> Earthling Michel D�nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
> XFree86 and DRI project member   /  CS student, Free Software enthusiast

I was thinking it looked like a glibc bug. The other thing that
happens is that vt switching gets messed up. I can no longer switch
to a termnial. I'm stuck at vt 7. So, maybe this is what happens if vt
access gets cut off? If so, this might even be kernel bug.
But, why is only R128 triggering it? I was hoping somebody
else has seen the above backtrace and could give me some
suggestions.

Joe Krahn
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