From 92849603d00a14a28cccefbb52ce647ae43c05a3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Date: Thu, 24 May 2018 10:22:57 +0000 Subject: [PATCH] xen/pvh: allocate dbg_stack Or else init_secondary will hit a page fault (or write garbage somewhere). Sponsored by: Citrix Systems R&D --- sys/x86/xen/pv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sys/x86/xen/pv.c b/sys/x86/xen/pv.c index c7e97c5b2b6..27e98012302 100644 --- a/sys/x86/xen/pv.c +++ b/sys/x86/xen/pv.c @@ -101,6 +101,7 @@ static int xen_pv_start_all_aps(void); extern char *doublefault_stack; extern char *mce_stack; extern char *nmi_stack; +extern char *dbg_stack; #endif /* @@ -224,6 +225,8 @@ start_xen_ap(int cpu) (char *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZERO); nmi_stack = (char *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZERO); + dbg_stack = + (void *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZERO); dpcpu = (void *)kmem_malloc(kernel_arena, DPCPU_SIZE, M_WAITOK | M_ZERO);