Re: [FIX] Make deadlock detection work for file locking

From: Tigran Aivazian (
Date: Fri Aug 25 2000 - 06:34:02 EST

On Fri, 25 Aug 2000, Alan Cox wrote:

> > I don't have POSIX in front of me, but I do not think
> > the system must detect deadlock. It is allowed to detect
> > deadlock, and in case it happens to do so EDEADLK is the
> > apprpriate error return.
> Do you know if SuS is that relaxed ?

SuS v2 saith:

  A potential for deadlock occurs if a process controlling a locked region
  is put to sleep by attempting to lock another process' locked region. If
  the system detects that sleeping until a locked region is unlocked would
  cause a deadlock, fcntl() will fail with an [EDEADLK] error.


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