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authorJosh Hunt <johunt@akamai.com>2014-08-09 01:22:31 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-09 02:57:24 +0400
commit69361eef9056b0babb507798c2135ad1572f0ef7 (patch)
tree59a63cc2f670926a7b9394533bbc9d3e379fc258 /Documentation
parent1da85fdff55da539fbe9c270689a7bcedead1cdd (diff)
downloadlinux-69361eef9056b0babb507798c2135ad1572f0ef7.tar.xz
panic: add TAINT_SOFTLOCKUP
This taint flag will be set if the system has ever entered a softlockup state. Similar to TAINT_WARN it is useful to know whether or not the system has been in a softlockup state when debugging. [akpm@linux-foundation.org: apply the taint before calling panic()] Signed-off-by: Josh Hunt <johunt@akamai.com> Cc: Jason Baron <jbaron@akamai.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/oops-tracing.txt2
-rw-r--r--Documentation/sysctl/kernel.txt1
2 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/oops-tracing.txt b/Documentation/oops-tracing.txt
index e3155995ddd8..beefb9f82902 100644
--- a/Documentation/oops-tracing.txt
+++ b/Documentation/oops-tracing.txt
@@ -268,6 +268,8 @@ characters, each representing a particular tainted value.
14: 'E' if an unsigned module has been loaded in a kernel supporting
module signature.
+ 15: 'L' if a soft lockup has previously occurred on the system.
+
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 c14374e71775..f79eb9666379 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -826,6 +826,7 @@ can be ORed together:
4096 - An out-of-tree module has been loaded.
8192 - An unsigned module has been loaded in a kernel supporting module
signature.
+16384 - A soft lockup has previously occurred on the system.
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