[OpenAFS-devel] Fwd: XEN and openafs-modules-source
Chaskiel M Grundman
cg2v@andrew.cmu.edu
Sat, 08 Oct 2005 23:59:42 -0400
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--On Saturday, October 08, 2005 06:31:50 PM -0700 Russ Allbery=20
<rra@stanford.edu> wrote:
>A similar issue has been resolved by Herbert Xu
> in the kernel source (net/ipv4/udp.c) by substituting
> spin_lock_irq/spin_unlock_irq with spin_lock_bh/spin_unlock_bh.
1) the patch from Herbert Xu,
<http://www.ussg.iu.edu/hypermail/linux/kernel/0505.3/1654.html>, claims=20
to be fixing a problem with highmem interaction, not xen interaction. xen=20
was involved in that mailing list thread, but only because it increased the =
likelihood that some udp packets were fragmented.(?!)
2) Xen appears to support spin_lock_irq{,save} and=20
local_irq_{enable,disable}, so I don't know what the user is actually=20
complaining about. I suppose I could boot my xen kernel and try to=20
compile/load afs on it...
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