On Tue, May 31, 2005 at 11:54:02PM +0200, Axel Thimm wrote:
> Hm, any pointers to "how"? ;)
make -C <path-to-kernel> M=`pwd`
sort of thing.
linux/Documentation/kbuild/modules.txt will probably explain it better
than I can.
> Sure, that's clear. What I mean is: If you turn on xfs in RHEL4's
> kernel is it considered safe with 4KSTACKS?
It is on already on RHEL isn't it? As to whether it's safe it depends
who you ask.
Various people from Red Hat insist that 4K stacks are desirable
because they see order-1 allocations failing sometimes which make
sense, however, x86-64 still uses 8K stacks and nobody is pushing hard
for 4K stacks there.
> If not, that would make the whole point of building the kernel
> modules out of the tree meaningless.
It has no advantages unless it's newer code. I would just just a tree
from oss.sgi.com or mainline instead.
> lkml and this list sometimes consider NFS & XFS a dangerous
> combination stackwise. Urban legend or is there truth to it?
For x86:
XFS + 4KSTACKS used to fail trivially.
Things have been improved greatly (the xfsqa tests now apparently
pass with 4KSTACKS).
With 4KSTACKS using NFS, loop, dm, RAID, LVM in combination with
XFS will still break in some cases.
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