在 2025/12/15 08:32, Andrew Morton 写道:

On Fri, 12 Dec 2025 17:56:48 +0800 Qiang Ma [off-list ref] wrote:

quoted

The commit a85ee18c7900 ("kexec_file: print out debugging message
if required") has added general code printing in kexec_file_load(),
but not in kexec_load().

As a result, when using '-d' for the kexec_load interface,
print nothing in the kernel space.

That doesn't sound like a thing which "kernel test robot" would detect
and report.

quoted

Since the segments debugging message has already been printed by the
user-space tool kexec-tools, it will not be printed here in the
kernel space.

And print out type/start/head of kimage and flags to help debug.

Signed-off-by: Qiang Ma <redacted>
Reported-by: kernel test robot <redacted>
Closes: https://lore.kernel.org/oe-kbuild-all/202510310332.6XrLe70K-lkp@intel.com/ (local)

Oh I see, that's a warning against an earlier version of this patch.
But this is labelled "v1"!

yes.

I suggest we remove this Reported-by record.

ok, I'll collect some other suggestions and fix it together in the next 
version.

quoted

--- a/kernel/kexec.c
+++ b/kernel/kexec.c

@@ -166,6 +166,9 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments,
  	if (ret)
  		goto out;
  
+	kexec_dprintk("kexec_load: type:%u, start:0x%lx head:0x%lx flags:0x%lx\n",
+		      image->type, image->start, image->head, flags);
+
  	/* Install the new kernel and uninstall the old */
  	image = xchg(dest_image, image);

Thanks, I'll await reviewer input before proceeding with this series.