Hi...

thanks for the hint, that solved the problem...

The kernel config had SysV compatibility totally disabled.
After enabling shared memory the taper process worked as expected.

thanks a lot..

greetz
olli

Am Montag, den 07.01.2008, 09:28 -0700 schrieb John E Hein:
> John E Hein wrote at 08:53 -0700 on Jan  7, 2008:
>  > Dustin J. Mitchell wrote at 09:46 -0500 on Jan  7, 2008:
>  >  > On Jan 7, 2008 9:03 AM, Mister Olli <mister.olli AT googlemail DOT com> 
> wrote:
>  >  > > (gdb) bt
>  >  > > #0  0x281ece17 in shmget () from /lib/libc.so.6
>  >  > > #1  0x080520f4 in attach_buffers ()
>  >  > > #2  0x0804b872 in main ()
>  >  > 
>  >  > Eek -- this is where the taper is allocating the memory that it will
>  >  > share with the tape-writer process.  Have any FreeBSD folks seen this
>  >  > error before?
>  > 
>  > SIGSYS (non-existent system call) might happen when you have a
>  > mismatching userland and kernel.  Your first step is to make sure you
>  > have updated your world (via the buildworld/buildkernel processed
>  > documented in /usr/src/UPDATING).
> 
> Also make sure you have not removed support for System V IPC (shared
> memory) in a custom kernel (GENERIC has support for it).