Page 33 - demo

Causes of Errors

 Improper  Nondeterminate

synchronization program operation

 a program must wait until the  program execution is
data are available in a buffer interleaved by the processor

 improper design of the when memory is shared

signaling mechanism can  the order in which programs
are scheduled may affect their
result in loss or duplication outcome

 Deadlocks
 Failed mutual exclusion

 more than one user or  it is possible for two or more
program attempts to make programs to be hung up
use of a shared resource at waiting for each other
the same time

 only one routine at a time  may depend on the chance
allowed to perform an timing of resource allocation
update against the file and release