[PATCH 1/3] kernel: kmod-ramoops: Include pstore console support

Brian Norris computersforpeace at gmail.com
Sat Feb 4 16:35:33 PST 2023


Pstore ramoops support is useful even when there isn't an explicit
panic/crash. We can log all kernel messages via a "console", and then
retrieve them in the event of some non-kernel-panic reset (e.g.,
watchdog).

Since the buffer memory is already reserved, there isn't much overhead
to doing this.

The new console files will show up as:

  /sys/fs/pstore/console-ramoops-N

Cc: Hannu Nyman <hannu.nyman at iki.fi>
Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---

 package/kernel/linux/modules/other.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package/kernel/linux/modules/other.mk b/package/kernel/linux/modules/other.mk
index 2bd15dfe67e1..1369a4ad54f1 100644
--- a/package/kernel/linux/modules/other.mk
+++ b/package/kernel/linux/modules/other.mk
@@ -834,7 +834,8 @@ define KernelPackage/ramoops
   SUBMENU:=$(OTHER_MENU)
   TITLE:=Ramoops (pstore-ram)
   DEFAULT:=m if ALL_KMODS
-  KCONFIG:=CONFIG_PSTORE_RAM
+  KCONFIG:=CONFIG_PSTORE_RAM \
+	CONFIG_PSTORE_CONSOLE=y
   DEPENDS:=+kmod-pstore +kmod-reed-solomon
   FILES:= $(LINUX_DIR)/fs/pstore/ramoops.ko
   AUTOLOAD:=$(call AutoLoad,30,ramoops,1)
-- 
2.39.1




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