It is useful to print kdump kernel loaded status in dump_stack()
especially when panic happens so that we can differenciate
kdump kernel early hang and a normal panic in a bug report.
Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
---
kernel/printk/printk.c | 3 +++
1 file changed, 3 insertions(+)
--- linux-x86.orig/kernel/printk/printk.c
+++ linux-x86/kernel/printk/printk.c
@@ -48,6 +48,7 @@
#include <linux/sched/clock.h>
#include <linux/sched/debug.h>
#include <linux/sched/task_stack.h>
+#include <linux/kexec.h>
#include <linux/uaccess.h>
#include <asm/sections.h>
@@ -3127,6 +3128,8 @@ void dump_stack_print_info(const char *l
if (dump_stack_arch_desc_str[0] != '\0')
printk("%sHardware name: %s\n",
log_lvl, dump_stack_arch_desc_str);
+ if (kexec_crash_loaded())
+ printk("%skdump kernel loaded\n", log_lvl);
print_worker_info(log_lvl, current);
}
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