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CA-422187: fix NUMA on XS8 #6824

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Merged
robhoes merged 1 commit into from
Jan 8, 2026
Merged

CA-422187: fix NUMA on XS8 #6824

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4 changes: 4 additions & 0 deletions ocaml/xenopsd/xc/domain.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -1002,13 +1002,17 @@ let numa_placement domid ~vcpus ~cores ~memory affinity =
in
let nr_pages = Int64.div memory 4096L |> Int64.to_int in
try
D.debug "NUMAClaim domid %d: local claim on node %d: %d pages" domid
node nr_pages ;
Xenctrlext.domain_claim_pages xcext domid ~numa_node nr_pages ;
set_vcpu_affinity cpu_affinity ;
Some (node, memory)
with
| Xenctrlext.Not_available ->
(* Xen does not provide the interface to claim pages from a single NUMA
node, ignore the error and continue. *)
D.debug "NUMAClaim domid %d: local claim not available" domid ;
set_vcpu_affinity cpu_affinity ;
None
| Xenctrlext.Unix_error (errno, _) ->
D.info
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