livepatch: kernel: add TAINT_LIVEPATCH
This adds a new taint flag to indicate when the kernel or a kernel
module has been live patched. This will provide a clean indication in
bug reports that live patching was used.
Additionally, if the crash occurs in a live patched function, the live
patch module will appear beside the patched function in the backtrace.
Signed-off-by: Seth Jennings <sjenning@redhat.com>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/kernel/panic.c b/kernel/panic.c
index 4d8d6f9..8136ad7 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -226,6 +226,7 @@
{ TAINT_OOT_MODULE, 'O', ' ' },
{ TAINT_UNSIGNED_MODULE, 'E', ' ' },
{ TAINT_SOFTLOCKUP, 'L', ' ' },
+ { TAINT_LIVEPATCH, 'K', ' ' },
};
/**
@@ -246,6 +247,7 @@
* 'O' - Out-of-tree module has been loaded.
* 'E' - Unsigned module has been loaded.
* 'L' - A soft lockup has previously occurred.
+ * 'K' - Kernel has been live patched.
*
* The string is overwritten by the next call to print_tainted().
*/