path: root/Documentation
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authorSebastian Ott <sebott@de.ibm.com>2008-01-26 14:10:37 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-01-26 14:10:55 +0100
commit14ff56bbb3422cc465a12e81f5e1b5f06168aeda (patch)
tree3449924a41cce57963c0daf86320be5daf380687 /Documentation
parent[S390] Cleanup in Documentation/kernel-parameters.txt. (diff)
[S390] cio: Dump ccw device information in case of timeout.
Information about a ccw device will be dumped in case of a ccw timeout. This can be enabled with the kernel parameter ccw_timeout_log. Signed-off-by: Sebastian Ott <sebott@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'Documentation')
2 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index d29b6d926a42..880f882160e2 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -370,6 +370,9 @@ and is between 256 and 4096 characters. It is defined in the file
configured. Potentially dangerous and should only be
used if you are entirely sure of the consequences.
+ ccw_timeout_log [S390]
+ See Documentation/s390/CommonIO for details.
checkreqprot [SELINUX] Set initial checkreqprot flag value.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.
diff --git a/Documentation/s390/CommonIO b/Documentation/s390/CommonIO
index 86320aa3fb0b..8fbc0a852870 100644
--- a/Documentation/s390/CommonIO
+++ b/Documentation/s390/CommonIO
@@ -4,6 +4,11 @@ S/390 common I/O-Layer - command line parameters, procfs and debugfs entries
Command line parameters
+* ccw_timeout_log
+ Enable logging of debug information in case of ccw device timeouts.
* cio_msg = yes | no
Determines whether information on found devices and sensed device