diff options
| author | Seth Jennings <sjenning@redhat.com> | 2014-12-16 11:58:18 -0600 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2014-12-22 15:40:48 +0100 |
| commit | c5f4546593e9911800f0926c1090959b58bc5c93 (patch) | |
| tree | 62867df3a453f6aa07bbb39f26659f0d9d430dd4 /Documentation | |
| parent | 97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff) | |
| download | linux-next-c5f4546593e9911800f0926c1090959b58bc5c93.tar.gz | |
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')
| -rw-r--r-- | Documentation/oops-tracing.txt | 2 | ||||
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 1 |
2 files changed, 3 insertions, 0 deletions
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 diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 75511efefc64..83ab25660fc9 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -843,6 +843,7 @@ can be ORed together: 8192 - An unsigned module has been loaded in a kernel supporting module signature. 16384 - A soft lockup has previously occurred on the system. +32768 - The kernel has been live patched. ============================================================== |