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[PATCH] domain: move vmtrace_alloc_buffer() invocation in vcpu_create()
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 16 Feb 2026 16:51:53 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Mon, 16 Feb 2026 15:52:08 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
The label used upon the function failing is wrong. Instead of correcting
the label, move the invocation up a little, to also avoid it altogether
for the idle domain (where ->vmtrace_size would be zero, and hence the
function would bail right away anyway).
Fixes: 217dd79ee292 ("xen/domain: Add vmtrace_size domain creation parameter")
Reported-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -493,14 +493,14 @@ struct vcpu *vcpu_create(struct domain *
set_bit(_VPF_down, &v->pause_flags);
vcpu_info_reset(v);
init_waitqueue_vcpu(v);
+
+ if ( vmtrace_alloc_buffer(v) != 0 )
+ goto fail_wq;
}
if ( sched_init_vcpu(v) != 0 )
goto fail_wq;
- if ( vmtrace_alloc_buffer(v) != 0 )
- goto fail_wq;
-
if ( arch_vcpu_create(v) != 0 )
goto fail_sched;
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