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| author | Sebastian Ott <sebott@de.ibm.com> | 2008-01-26 14:10:37 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-01-26 14:10:55 +0100 |
| commit | 14ff56bbb3422cc465a12e81f5e1b5f06168aeda (patch) | |
| tree | 3449924a41cce57963c0daf86320be5daf380687 /Documentation | |
| parent | 661ca0da3e1fa60c9e56f995fd83772ffa9ffe90 (diff) | |
| download | lwn-14ff56bbb3422cc465a12e81f5e1b5f06168aeda.tar.gz lwn-14ff56bbb3422cc465a12e81f5e1b5f06168aeda.zip | |
[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')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 3 | ||||
| -rw-r--r-- | Documentation/s390/CommonIO | 5 |
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 |