diff options
author | Dave Jones <davej@redhat.com> | 2006-12-12 17:41:41 -0500 |
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committer | Dave Jones <davej@redhat.com> | 2006-12-12 17:41:41 -0500 |
commit | c4366889dda8110247be59ca41fddb82951a8c26 (patch) | |
tree | 705c1a996bed8fd48ce94ff33ec9fd00f9b94875 /Documentation/s390/s390dbf.txt | |
parent | db2fb9db5735cc532fd4fc55e94b9a3c3750378e (diff) | |
parent | e1036502e5263851259d147771226161e5ccc85a (diff) |
Merge ../linus
Conflicts:
drivers/cpufreq/cpufreq.c
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 000230cd26db..0eb7c58916de 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 | |||
36 | that the records which describe the origin of the exception are not | 36 | that the records which describe the origin of the exception are not |
37 | overwritten when a wrap around for the current area occurs. | 37 | overwritten when a wrap around for the current area occurs. |
38 | 38 | ||
39 | The debug areas itselve are also ordered in form of a ring buffer. | 39 | The debug areas themselves are also ordered in form of a ring buffer. |
40 | When an exception is thrown in the last debug area, the following debug | 40 | When an exception is thrown in the last debug area, the following debug |
41 | entries are then written again in the very first area. | 41 | entries are then written again in the very first area. |
42 | 42 | ||
@@ -55,7 +55,7 @@ The debug logs can be inspected in a live system through entries in | |||
55 | the debugfs-filesystem. Under the toplevel directory "s390dbf" there is | 55 | the debugfs-filesystem. Under the toplevel directory "s390dbf" there is |
56 | a directory for each registered component, which is named like the | 56 | a directory for each registered component, which is named like the |
57 | corresponding component. The debugfs normally should be mounted to | 57 | corresponding component. The debugfs normally should be mounted to |
58 | /sys/kernel/debug therefore the debug feature can be accessed unter | 58 | /sys/kernel/debug therefore the debug feature can be accessed under |
59 | /sys/kernel/debug/s390dbf. | 59 | /sys/kernel/debug/s390dbf. |
60 | 60 | ||
61 | The content of the directories are files which represent different views | 61 | 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 | |||
87 | globally. The first possibility is to use the "debug_active" sysctl. If | 87 | globally. The first possibility is to use the "debug_active" sysctl. If |
88 | set to 1 the debug feature is running. If "debug_active" is set to 0 the | 88 | set to 1 the debug feature is running. If "debug_active" is set to 0 the |
89 | debug feature is turned off. | 89 | debug feature is turned off. |
90 | The second trigger which stops the debug feature is an kernel oops. | 90 | The second trigger which stops the debug feature is a kernel oops. |
91 | That prevents the debug feature from overwriting debug information that | 91 | That prevents the debug feature from overwriting debug information that |
92 | happened before the oops. After an oops you can reactivate the debug feature | 92 | happened before the oops. After an oops you can reactivate the debug feature |
93 | by piping 1 to /proc/sys/s390dbf/debug_active. Nevertheless, its not | 93 | by piping 1 to /proc/sys/s390dbf/debug_active. Nevertheless, its not |
94 | suggested to use an oopsed kernel in an production environment. | 94 | suggested to use an oopsed kernel in a production environment. |
95 | If you want to disallow the deactivation of the debug feature, you can use | 95 | If you want to disallow the deactivation of the debug feature, you can use |
96 | the "debug_stoppable" sysctl. If you set "debug_stoppable" to 0 the debug | 96 | the "debug_stoppable" sysctl. If you set "debug_stoppable" to 0 the debug |
97 | feature cannot be stopped. If the debug feature is already stopped, it | 97 | feature cannot be stopped. If the debug feature is already stopped, it |