diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:59 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:59 +0000 |
commit | 27d3313807296c3943a96ceef8c2b7279cb56962 (patch) | |
tree | 7d08e78c36ab6437b403fc7cd8c23e41f135c7a3 /debian/patches-rt/0038-printk-Atomic-print-in-printk-context-on-shutdown.patch | |
parent | Merging upstream version 6.7.7. (diff) | |
download | linux-debian/6.7.7-1.tar.xz linux-debian/6.7.7-1.zip |
Adding debian version 6.7.7-1.debian/6.7.7-1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/patches-rt/0038-printk-Atomic-print-in-printk-context-on-shutdown.patch')
-rw-r--r-- | debian/patches-rt/0038-printk-Atomic-print-in-printk-context-on-shutdown.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/debian/patches-rt/0038-printk-Atomic-print-in-printk-context-on-shutdown.patch b/debian/patches-rt/0038-printk-Atomic-print-in-printk-context-on-shutdown.patch new file mode 100644 index 0000000000..1f51022ae4 --- /dev/null +++ b/debian/patches-rt/0038-printk-Atomic-print-in-printk-context-on-shutdown.patch @@ -0,0 +1,41 @@ +From: John Ogness <john.ogness@linutronix.de> +Date: Mon, 23 Oct 2023 17:43:48 +0000 +Subject: [PATCH 38/50] printk: Atomic print in printk context on shutdown +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/6.7/older/patches-6.7-rt6.tar.xz + +For nbcon consoles, normally the printing is handled by the +dedicated console printing threads. However, on shutdown the +printing threads may not get a chance to print the final +messages. + +When shutting down or rebooting (system_state > SYSTEM_RUNNING), +perform atomic printing from the printk() caller context. + +Signed-off-by: John Ogness <john.ogness@linutronix.de> +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + kernel/printk/printk.c | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +--- a/kernel/printk/printk.c ++++ b/kernel/printk/printk.c +@@ -2388,13 +2388,18 @@ asmlinkage int vprintk_emit(int facility + * + * - When this CPU is in panic. + * ++ * - During shutdown, since the printing threads may not get ++ * a chance to print the final messages. ++ * + * Note that if boot consoles are registered, the + * console_lock/console_unlock dance must be relied upon + * instead because nbcon consoles cannot print simultaneously + * with boot consoles. + */ +- if (is_panic_context) ++ if (is_panic_context || ++ (system_state > SYSTEM_RUNNING)) { + nbcon_atomic_flush_all(); ++ } + } + + if (do_trylock_unlock) { |