Hi Eric,
> > After building a couple of clusters using xfs on the shared storage device
> > (and using md and lvm on top of that), I'm getting this error now which hard
> > crashes my machines:
> >
> > do_IRQ: stack overflow: 284
> > [<c01078a2>] do_IRQ+0x44/0x130
>
> The rest of the message would be most interesting, to see what your
> stack actually looks like.
What I've shown above is the only bit I can see on the console, can't use the
keyboard or anything at that point and I have to physically powercycle the
server.
> Recent xfs is reasonable on 4k stacks and there are a few things in
> the works to make it better. But depending on what you stack up in
> your IO path you could probably still blow it.
Hmm... ok, my stack is:
md for IDE disk mirrors
lvm for LV support
drbd for the shared storage
xfs formatted the filesystem
I run the linuxha.net HA software which uses drbd for network-linked shared
storage.
Do you think all that stacking is the problem? would the previous email
stating that I can build from kernel.org using RH config file but changing to
8k stack make this work?
Thanks.
Michael.
> -Eric
>
> > I'm using Scientific Linux 4.2 (RHEL4 Update 2) with a SL Contrib kernel of:
> >
> > kernel-smp-2.6.9-11.EL.XFS
> >
> > which has xfs support. I also use the xfsprogs rpm supplied by Dag Wieers. I
> > run on an x86 platform.
> >
> > After googling quite a bit, it seems that RH have caused an issue with their
> > RHEL4 release by only enabling a 4k stack, where it seems that XFS requires
> > an
> > 8k stack?
> >
> > I'd really like to know how to fix this problem as I just finished months of
> > works building a couple of SL4 clustered environments using XFS, and now
> > with
> > this problem am looking at the unpleasant alternative of getting rid of the
> > XFS filesystems and changing them to ext3, which will take me approximately
> > half a day of work per cluster for the added benefit of a slower filesystem.
> >
> > I just visited the SGI site to see if there's any hints to fixes of this
> > problem there, which is where I got this email address from.
> >
> > Any help is very much appreciated.
> >
> > Michael.
> >
> >
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