This is a note to let you know that I've just added the patch titled docs: gdbmacros: print newest record to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: docs-gdbmacros-print-newest-record.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From f2e4cca2f670c8e52fbb551a295f2afc9aa2bd72 Mon Sep 17 00:00:00 2001 From: John Ogness <john.ogness@xxxxxxxxxxxxx> Date: Thu, 29 Dec 2022 14:49:39 +0106 Subject: docs: gdbmacros: print newest record From: John Ogness <john.ogness@xxxxxxxxxxxxx> commit f2e4cca2f670c8e52fbb551a295f2afc9aa2bd72 upstream. @head_id points to the newest record, but the printing loop exits when it increments to this value (before printing). Exit the printing loop after the newest record has been printed. The python-based function in scripts/gdb/linux/dmesg.py already does this correctly. Fixes: e60768311af8 ("scripts/gdb: update for lockless printk ringbuffer") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: John Ogness <john.ogness@xxxxxxxxxxxxx> Reviewed-by: Petr Mladek <pmladek@xxxxxxxx> Signed-off-by: Petr Mladek <pmladek@xxxxxxxx> Link: https://lore.kernel.org/r/20221229134339.197627-1-john.ogness@xxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- Documentation/admin-guide/kdump/gdbmacros.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/Documentation/admin-guide/kdump/gdbmacros.txt +++ b/Documentation/admin-guide/kdump/gdbmacros.txt @@ -312,10 +312,10 @@ define dmesg set var $prev_flags = $info->flags end - set var $id = ($id + 1) & $id_mask if ($id == $end_id) loop_break end + set var $id = ($id + 1) & $id_mask end end document dmesg Patches currently in stable-queue which might be from john.ogness@xxxxxxxxxxxxx are queue-5.15/docs-gdbmacros-print-newest-record.patch