diff options
| author | David Howells <dhowells@redhat.com> | 2006-12-05 17:01:28 +0000 |
|---|---|---|
| committer | David Howells <dhowells@warthog.cambridge.redhat.com> | 2006-12-05 17:01:28 +0000 |
| commit | 9db73724453a9350e1c22dbe732d427e2939a5c9 (patch) | |
| tree | 15e3ead6413ae97398a54292acc199bee0864d42 /Documentation/s390/s390dbf.txt | |
| parent | 4c1ac1b49122b805adfa4efc620592f68dccf5db (diff) | |
| parent | e62438630ca37539c8cc1553710bbfaa3cf960a7 (diff) | |
| download | op-kernel-dev-9db73724453a9350e1c22dbe732d427e2939a5c9.zip op-kernel-dev-9db73724453a9350e1c22dbe732d427e2939a5c9.tar.gz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/ata/libata-scsi.c
include/linux/libata.h
Futher merge of Linus's head and compilation fixups.
Signed-Off-By: David Howells <dhowells@redhat.com>
Diffstat (limited to 'Documentation/s390/s390dbf.txt')
| -rw-r--r-- | Documentation/s390/s390dbf.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/s390/s390dbf.txt b/Documentation/s390/s390dbf.txt index 000230c..0eb7c58 100644 --- a/Documentation/s390/s390dbf.txt +++ b/Documentation/s390/s390dbf.txt @@ -36,7 +36,7 @@ switches to the next debug area. This is done in order to be sure that the records which describe the origin of the exception are not overwritten when a wrap around for the current area occurs. -The debug areas itselve are also ordered in form of a ring buffer. +The debug areas themselves are also ordered in form of a ring buffer. When an exception is thrown in the last debug area, the following debug entries are then written again in the very first area. @@ -55,7 +55,7 @@ The debug logs can be inspected in a live system through entries in the debugfs-filesystem. Under the toplevel directory "s390dbf" there is a directory for each registered component, which is named like the corresponding component. The debugfs normally should be mounted to -/sys/kernel/debug therefore the debug feature can be accessed unter +/sys/kernel/debug therefore the debug feature can be accessed under /sys/kernel/debug/s390dbf. The content of the directories are files which represent different views @@ -87,11 +87,11 @@ There are currently 2 possible triggers, which stop the debug feature globally. The first possibility is to use the "debug_active" sysctl. If set to 1 the debug feature is running. If "debug_active" is set to 0 the debug feature is turned off. -The second trigger which stops the debug feature is an kernel oops. +The second trigger which stops the debug feature is a kernel oops. That prevents the debug feature from overwriting debug information that happened before the oops. After an oops you can reactivate the debug feature by piping 1 to /proc/sys/s390dbf/debug_active. Nevertheless, its not -suggested to use an oopsed kernel in an production environment. +suggested to use an oopsed kernel in a production environment. If you want to disallow the deactivation of the debug feature, you can use the "debug_stoppable" sysctl. If you set "debug_stoppable" to 0 the debug feature cannot be stopped. If the debug feature is already stopped, it |
