Weird truss output

[Vlad GALU]

Hello,

I'm running a statically linked binary, which I've built inside a
jail. The jail's libc & co are in sync with the host's.
Truss then shows this:

-- cut here --
-- UNKNOWN SYSCALL 1048532 --
-- UNKNOWN SYSCALL 1048532 --
-- UNKNOWN SYSCALL 1048524 --
-- UNKNOWN SYSCALL 1048516 --
-- UNKNOWN SYSCALL 1048572 --
-- UNKNOWN SYSCALL 1048532 --
-- UNKNOWN SYSCALL 1048556 --
-- UNKNOWN SYSCALL 1048532 --
-- UNKNOWN SYSCALL 1048524 --
-- UNKNOWN SYSCALL 1048564 --
-- UNKNOWN SYSCALL 1048548 --
-- UNKNOWN SYSCALL 1048532 --
-- UNKNOWN SYSCALL 1048532 --
-- UNKNOWN SYSCALL 1048532 --
-- UNKNOWN SYSCALL 1048564 --
-- and here --

   Is this a bug or a feature?

-- 
~/.signature: no such file or directory