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D30576.id90219.diff
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D30576.id90219.diff

diff --git a/sys/x86/x86/local_apic.c b/sys/x86/x86/local_apic.c
--- a/sys/x86/x86/local_apic.c
+++ b/sys/x86/x86/local_apic.c
@@ -2127,6 +2127,10 @@
#endif /* SMP */
+#ifdef __i386__
+extern uintptr_t setidt_disp;
+#endif
+
/*
* Since the IDT is shared by all CPUs the IPI slot update needs to be globally
* visible.
@@ -2155,6 +2159,9 @@
for (idx = IPI_DYN_FIRST; idx <= IPI_DYN_LAST; idx++) {
ip = &idt[idx];
func = (ip->gd_hioffset << 16) | ip->gd_looffset;
+#ifdef __i386__
+ func -= setidt_disp;
+#endif
if ((!pti && func == (uintptr_t)&IDTVEC(rsvd)) ||
(pti && func == (uintptr_t)&IDTVEC(rsvd_pti))) {
vector = idx;
@@ -2178,6 +2185,9 @@
mtx_lock_spin(&icu_lock);
ip = &idt[vector];
func = (ip->gd_hioffset << 16) | ip->gd_looffset;
+#ifdef __i386__
+ func -= setidt_disp;
+#endif
KASSERT(func != (uintptr_t)&IDTVEC(rsvd) &&
func != (uintptr_t)&IDTVEC(rsvd_pti),
("invalid idtfunc %#lx", func));

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