On Thu, 7 Jul 2005, Joshua Baker-LePain wrote:
> On Thu, 7 Jul 2005 at 10:41am, Steve Lord wrote
> > Joshua Baker-LePain wrote:
> > > Can anyone summarize the current status of XFS and 4K stacks? There was
> > > recently a thread on the nahant (RHEL4) mailing list where it was
> > > stated that one reason for the exclusion of XFS in RHEL4 is the stack
> > > size issue. I'd love to see XFS in Red Hat, although of course I have no
> > > idea if they'd turn it on even if the stack size issues went away
> > > tomorrow. I'm just wondering what the view of this is from the SGI side.
> > >
> > > Thanks.
> > >
> > >
> > >  https://www.redhat.com/archives/nahant-list/2005-June/msg00280.html
> > >
> > >  https://www.redhat.com/archives/nahant-list/2005-June/msg00304.html
> > >
> > I have my suspicions that they could find another reason if this one was
> > not present - code is too complex, they have no expertise for support....
> Oh, I share those same suspicions. The only reason I pointed at that post
> is that it's the first time I've heard anything from them other than "XFS
> doesn't provide anything not provided by ext3". Note that I was ignored
> in the same thread after proving that RHEL4's dump for ext3 ignores
> > As for XFS and a 4K stack, I think it still boils down to a few edge cases,
> > I have not seen one in years, I am doing all my builds via nfs v3 with
> > tcp/ip to an XFS filesystem.
> > The only stack overflow I have seen recently has been attempting to get
> > device mapper multipath to work, I can make that overflow the stack just
> > trying to configure it.
> Hrm. I was easily able to trigger stack overflows on a pretty simple
> (albeit old) setup -- RHEL4 kernel with XFS turned on, dual PIII 450,
> 384MB RAM, XFS on a single SCSI disk on aic7xxx.
> > Steve (who has an attitude problem this morning)
> Rather understandable given the subject -- sorry to poke you with this
> particular stick.
Its worse than this too. Fedora Core ships with native XFS support.
Unfortunately, Redhat pretends like its not there. When I submitted a bug
a few days ago against grub failing to work during OS installation it was
closed as WNF because 'XFS is unsupported'. I questioned why they were
shipping a kernel with XFS and even the xfs-progs RPM if XFS is
unsupported, but I doubt I'll get a response.
Lonni J Friedman netllama@xxxxxxxxxxxxx