[Fwd: Re: [Fwd: Re: ZFS vs Samba Debugging Results ... Need Help.]]

Forwarded from Jeremy of the samba group.

attached mail follows:

On Thu, Jul 05, 2007 at 06:58:52PM -0700, Julian Elischer wrote:
> For your ammusement.
> 
> samba blew up when on ZFS due to an unexpected result in some returned 
> value somewhere..
> (details on demand)

I know about this. It's a bug in *BSD. The reason tridge
wrote this is here :

>From :

lib/replace/repdir_getdents.c in Samba.

------------------------------------------------------------------------
/*
  a replacement for opendir/readdir/telldir/seekdir/closedir for BSD systems

  This is needed because the existing directory handling in FreeBSD
  and OpenBSD (and possibly NetBSD) doesn't correctly handle unlink()
  on files in a directory where telldir() has been used. On a block
  boundary it will occasionally miss a file when seekdir() is used to
  return to a position previously recorded with telldir().

  This also fixes a severe performance and memory usage problem with
  telldir() on BSD systems. Each call to telldir() in BSD adds an
  entry to a linked list, and those entries are cleaned up on
  closedir(). This means with a large directory closedir() can take an
  arbitrary amount of time, causing network timeouts as millions of
  telldir() entries are freed

  Note! This replacement code is not portable. It relies on getdents()
  always leaving the file descriptor at a seek offset that is a
  multiple of DIR_BUF_SIZE. If the code detects that this doesn't
  happen then it will abort(). It also does not handle directories
  with offsets larger than can be stored in a long,
------------------------------------------------------------------------

Fix your OS please.

Jeremy.