diff --git a/sys/kern/kern_osem.pas b/sys/kern/kern_osem.pas
index 51641799..c846a276 100644
--- a/sys/kern/kern_osem.pas
+++ b/sys/kern/kern_osem.pas
@@ -8,7 +8,7 @@ interface
 const
  SEMA_ATTR_FIFO=$1;
  SEMA_ATTR_PRIO=$2;
- SEMA_ATTR_SHRD=$1000;
+ SEMA_ATTR_SHRD=$100;
 
 function sys_osem_create(name:PChar;attr:DWORD;initCount,maxCount:Integer):Integer;
 function sys_osem_delete(key:Integer):Integer;
diff --git a/sys/test/project1.lpr b/sys/test/project1.lpr
index 31ab30c6..5d0dbc51 100644
--- a/sys/test/project1.lpr
+++ b/sys/test/project1.lpr
@@ -207,8 +207,8 @@ begin
   thr_kill(tid,SIGUSR1);
   //thr_wake(tid);
 
-  i:=_evf_wait_err(evf,1,EVF_WAITMODE_OR,nil,nil);
-  Writeln('_evf_wait_err=',i,' _errno:',__error^);
+  i:=_evf_trywait_err(evf,1,EVF_WAITMODE_OR,nil);
+  Writeln('_evf_trywait_err=',i,' _errno:',__error^);
 
   i:=_evf_wait_err(evf,2,EVF_WAITMODE_OR,nil,nil);
   Writeln('_evf_wait_err=',i,' _errno:',__error^);