Re: rpm-4.1-1.0 hanging when installing/upgrading apps

On 20 Sep 2002 18:38:07 +0100, Mark C wrote:

> This has been reported before in bugzilla
> 
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=68056
> 
> but it has been closed, and from what I can work out there was not
> mention of a fix.

No, because for RPM 4.1 there won't be a fix it seems. Notice
Jeff Johnson's early comments:

  Try doing
      rm -rf /var/lib/rpm/__db*


  That's the workaround until there's a useful
  pthread_mutexattr_setpshared() (ideal) or I get a chance to factor
  db open permissions onto a setgid helper.


  This is a known problem. The current implementation
  is adequate, but not perfect.
  
  The __db files are used to share locks.
  
  A ^C will leave the file around, but the next execution
  as root, or next reboot, removes the __db files.
  
  Depending on the exact moment when ^C is hit,
  there may or may not be a lock held that another
  process may stumble upon.
  
  The problem that cannot be solved without a
  setgid helper is, if root does ^C, then non-root
  cannot remove the file, and can hang on dead locks.
  
  The setgid helper will be added, but not to rpm-4.1.
  
--