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authorSeth Jennings <sjenning@redhat.com>2014-12-16 20:58:18 +0300
committerJiri Kosina <jkosina@suse.cz>2014-12-22 17:40:48 +0300
commitc5f4546593e9911800f0926c1090959b58bc5c93 (patch)
tree62867df3a453f6aa07bbb39f26659f0d9d430dd4 /Documentation/oops-tracing.txt
parent97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff)
downloadlinux-c5f4546593e9911800f0926c1090959b58bc5c93.tar.xz
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>
Diffstat (limited to 'Documentation/oops-tracing.txt')
-rw-r--r--Documentation/oops-tracing.txt2
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diff --git a/Documentation/oops-tracing.txt b/Documentation/oops-tracing.txt
index beefb9f82902..f3ac05cc23e4 100644
--- a/Documentation/oops-tracing.txt
+++ b/Documentation/oops-tracing.txt
@@ -270,6 +270,8 @@ characters, each representing a particular tainted value.
15: 'L' if a soft lockup has previously occurred on the system.
+ 16: 'K' if the kernel has been live patched.
+
The primary reason for the 'Tainted: ' string is to tell kernel
debuggers if this is a clean kernel or if anything unusual has
occurred. Tainting is permanent: even if an offending module is