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-rw-r--r--sys/amd64/amd64/mp_machdep.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/sys/amd64/amd64/mp_machdep.c b/sys/amd64/amd64/mp_machdep.c
index 34a05e9..450d512 100644
--- a/sys/amd64/amd64/mp_machdep.c
+++ b/sys/amd64/amd64/mp_machdep.c
@@ -87,7 +87,6 @@ extern struct pcpu __pcpu[];
char *doublefault_stack;
char *mce_stack;
char *nmi_stack;
-char *dbg_stack;
/*
* Local data and functions.
@@ -226,10 +225,6 @@ init_secondary(void)
np = ((struct nmi_pcpu *) &mce_stack[PAGE_SIZE]) - 1;
common_tss[cpu].tss_ist3 = (long) np;
- /* The DB# stack runs on IST4. */
- np = ((struct nmi_pcpu *) &dbg_stack[PAGE_SIZE]) - 1;
- common_tss[cpu].tss_ist4 = (long) np;
-
/* Prepare private GDT */
gdt_segs[GPROC0_SEL].ssd_base = (long) &common_tss[cpu];
for (x = 0; x < NGDT; x++) {
@@ -275,10 +270,6 @@ init_secondary(void)
np = ((struct nmi_pcpu *) &mce_stack[PAGE_SIZE]) - 1;
np->np_pcpu = (register_t) pc;
- /* Save the per-cpu pointer for use by the DB# handler. */
- np = ((struct nmi_pcpu *) &dbg_stack[PAGE_SIZE]) - 1;
- np->np_pcpu = (register_t) pc;
-
wrmsr(MSR_FSBASE, 0); /* User value */
wrmsr(MSR_GSBASE, (u_int64_t)pc);
wrmsr(MSR_KGSBASE, (u_int64_t)pc); /* XXX User value while we're in the kernel */
@@ -377,8 +368,6 @@ native_start_all_aps(void)
M_WAITOK | M_ZERO);
nmi_stack = (char *)kmem_malloc(kernel_arena, PAGE_SIZE,
M_WAITOK | M_ZERO);
- dbg_stack = (char *)kmem_malloc(kernel_arena, PAGE_SIZE,
- M_WAITOK | M_ZERO);
dpcpu = (void *)kmem_malloc(kernel_arena, DPCPU_SIZE,
M_WAITOK | M_ZERO);
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