git: 6230945b8819 - stable/14 - vm_phys_early_startup(): Panic if phys_avail[] is empty

The branch stable/14 has been updated by olce:

URL: https://cgit.FreeBSD.org/src/commit/?id=6230945b8819f51d2f46ea16a3437fdc91665f90

commit 6230945b8819f51d2f46ea16a3437fdc91665f90
Author:     Olivier Certner <olce@FreeBSD.org>
AuthorDate: 2024-10-28 16:59:57 +0000
Commit:     Olivier Certner <olce@FreeBSD.org>
CommitDate: 2025-04-08 13:38:22 +0000

    vm_phys_early_startup(): Panic if phys_avail[] is empty
    
    Reviewed by:    markj
    MFC after:      1 week
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D48631
    
    (cherry picked from commit 32e77bcdec5c034a9252876aa018f0bf34b36dbc)
---
 sys/vm/vm_phys.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/vm/vm_phys.c b/sys/vm/vm_phys.c
index 10ce7e15f12a..92ac80d8d3bf 100644
--- a/sys/vm/vm_phys.c
+++ b/sys/vm/vm_phys.c
@@ -1834,6 +1834,9 @@ vm_phys_early_startup(void)
 	struct vm_phys_seg *seg;
 	int i;
 
+	if (phys_avail[1] == 0)
+		panic("phys_avail[] is empty");
+
 	for (i = 0; phys_avail[i + 1] != 0; i += 2) {
 		phys_avail[i] = round_page(phys_avail[i]);
 		phys_avail[i + 1] = trunc_page(phys_avail[i + 1]);