Re: Regression from 2.6.36

[Mel Gorman]

On Fri, 2011-04-15 at 12:56 +0200, azurIt wrote:
> # mount -t debugfs none /sys/kernel/debug
> mount: mount point /sys/kernel/debug does not exist
> 
> # mkdir /sys/kernel/debug
> mkdir: cannot create directory `/sys/kernel/debug': No such file or directory
> 

Mount sysfs first

mount -t sysfs none /sys

> 
> config file used for testing is here:
> http://watchdog.sk/lkml/config
> 

Try setting the following

CONFIG_TRACEPOINTS=y
CONFIG_STACKTRACE=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_FTRACE_NMI_ENTER=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_GENERIC_TRACER=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_IRQSOFF_TRACER=y
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_STACK_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_SELFTEST=y
CONFIG_FTRACE_STARTUP_TEST=y
CONFIG_MMIOTRACE=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y

-- 
Mel Gorman
SUSE Labs

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