X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=lib%2FKconfig.debug;h=e722e9d62221d40560176b5f8d2cabdcf74a5e2d;hb=02f5ba5bac8b374bc2126920c7204c63019f28ce;hp=d85be90d5888cb8df619039fb4282e77c9a120ff;hpb=59534f7298c5e28aaa64e6ed550e247f64ee72ae;p=karo-tx-linux.git diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index d85be90d5888..e722e9d62221 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -898,6 +898,18 @@ config LKDTM Documentation on how to use the module can be found in Documentation/fault-injection/provoke-crashes.txt +config CPU_NOTIFIER_ERROR_INJECT + tristate "CPU notifier error injection module" + depends on HOTPLUG_CPU && DEBUG_KERNEL + help + This option provides a kernel module that can be used to test + the error handling of the cpu notifiers + + To compile this code as a module, choose M here: the module will + be called cpu-notifier-error-inject. + + If unsure, say N. + config FAULT_INJECTION bool "Fault-injection framework" depends on DEBUG_KERNEL @@ -1039,10 +1051,10 @@ config DYNAMIC_DEBUG Usage: - Dynamic debugging is controlled via the 'dynamic_debug/ddebug' file, + Dynamic debugging is controlled via the 'dynamic_debug/control' file, which is contained in the 'debugfs' filesystem. Thus, the debugfs filesystem must first be mounted before making use of this feature. - We refer the control file as: /dynamic_debug/ddebug. This + We refer the control file as: /dynamic_debug/control. This file contains a list of the debug statements that can be enabled. The format for each line of the file is: @@ -1057,7 +1069,7 @@ config DYNAMIC_DEBUG From a live system: - nullarbor:~ # cat /dynamic_debug/ddebug + nullarbor:~ # cat /dynamic_debug/control # filename:lineno [module]function flags format fs/aio.c:222 [aio]__put_ioctx - "__put_ioctx:\040freeing\040%p\012" fs/aio.c:248 [aio]ioctx_alloc - "ENOMEM:\040nr_events\040too\040high\012" @@ -1067,23 +1079,23 @@ config DYNAMIC_DEBUG // enable the message at line 1603 of file svcsock.c nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' > - /dynamic_debug/ddebug + /dynamic_debug/control // enable all the messages in file svcsock.c nullarbor:~ # echo -n 'file svcsock.c +p' > - /dynamic_debug/ddebug + /dynamic_debug/control // enable all the messages in the NFS server module nullarbor:~ # echo -n 'module nfsd +p' > - /dynamic_debug/ddebug + /dynamic_debug/control // enable all 12 messages in the function svc_process() nullarbor:~ # echo -n 'func svc_process +p' > - /dynamic_debug/ddebug + /dynamic_debug/control // disable all 12 messages in the function svc_process() nullarbor:~ # echo -n 'func svc_process -p' > - /dynamic_debug/ddebug + /dynamic_debug/control See Documentation/dynamic-debug-howto.txt for additional information.