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From r..@apache.org
Subject Re: Linux 2.3.99/2.4 Heads Up
Date Tue, 21 Mar 2000 23:51:36 GMT

2 different issues.  1.3 is using fcntl for cross-process locking and SYSV
shm for the scoreboard.  I thought we were only talking about
cross-process locking at the time.

I thought we all sysv shared memory is a good thing.  :-)

Ryan

On Tue, 21 Mar 2000, Dean Gaudet wrote:

> it uses sysv shm in 1.3, and i assume mm uses it as well in 2.0.  there's
> no anon mmap() in linux, all mmap()s have to be backed by files, so sysv
> shm is generally preferred.
> 
> Dean
> 
> On Tue, 21 Mar 2000 rbb@apache.org wrote:
> 
> > 
> > I know that on 2.0, Linux is using FCNTL.
> > 
> > Ryan
> > 
> > On Tue, 21 Mar 2000, Ben Laurie wrote:
> > 
> > > rasmus@php.net wrote:
> > > > 
> > > > For anybody planning to upgrade to the new 2.4 kernel, note that in order
> > > > to use SYSV IPC you need to mount the new shmfs on /var/shm.  Without
> > > > doing this, Apache will fail to start up and spew a shmget() failure in
> > > > your error_log.  Let's just pray that the first distributions that include
> > > > the 2.4 kernel get this right or we will be in support hell for a few
> > > > months.
> > > 
> > > Should Linux even be using SYSV IPC?
> > > 
> > > Cheers,
> > > 
> > > Ben.
> > > 
> > > --
> > > SECURE HOSTING AT THE BUNKER: http://www.thebunker.net/hosting.htm
> > > 
> > > http://www.apache-ssl.org/ben.html
> > > 
> > > Coming to ApacheCon Europe? http://ApacheCon.Com/
> > > 
> > 
> > 
> > _______________________________________________________________________________
> > Ryan Bloom                        	rbb@apache.org
> > 406 29th St.
> > San Francisco, CA 94131
> > -------------------------------------------------------------------------------
> > 
> > 
> 
> 


_______________________________________________________________________________
Ryan Bloom                        	rbb@apache.org
406 29th St.
San Francisco, CA 94131
-------------------------------------------------------------------------------


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