From: John Ogness john.ogness@linutronix.de
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@vger.kernel.org Signed-off-by: John Ogness john.ogness@linutronix.de Reviewed-by: Petr Mladek pmladek@suse.com Signed-off-by: Petr Mladek pmladek@suse.com Link: https://lore.kernel.org/r/20221229134339.197627-1-john.ogness@linutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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