During boot scratch area is allocated based on command line parameters or auto calculated. However, scratch area may fail to allocate, and in that case KHO is disabled. Currently, no warning is printed that KHO is disabled, which makes it confusing for the end user to figure out why KHO is not available. Add the missing warning message. Signed-off-by: Pasha Tatashin Acked-by: Mike Rapoport (Microsoft) --- kernel/kexec_handover.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/kexec_handover.c b/kernel/kexec_handover.c index 6240bc38305b..c2b7e8b86db0 100644 --- a/kernel/kexec_handover.c +++ b/kernel/kexec_handover.c @@ -565,6 +565,7 @@ static void __init kho_reserve_scratch(void) err_free_scratch_desc: memblock_free(kho_scratch, kho_scratch_cnt * sizeof(*kho_scratch)); err_disable_kho: + pr_warn("Failed to reserve scratch area, disabling kexec handover\n"); kho_enable = false; } -- 2.50.1.565.gc32cd1483b-goog