Kernel

Can not get 'function_graph' for
Hi, I have build 2.6.33.1 with ftrace on, but after reboot I cannot get function_graph from available_tracers. =============== # .config CONFIG_NOP_TRACER=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y CONFIG_TRACER_MAX_TRACE=y CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_GENERIC_TRACE... 17 Mar 2010 06:53

perf: x86: fix callgraphs of 32-bit processes on 64-bit kernels V3.
* T??r??k Edwin <edwintorok(a)gmail.com> wrote: +#ifdef CONFIG_COMPAT + if (test_thread_flag(TIF_IA32)) { + perf_callchain_user32(regs, entry); + return; + } +#endif You can push that test into perf_callchain_user32() and turn it into something like: if (perf_callchain_user32(regs, entry)... 17 Mar 2010 06:53

lock monitor: Separate features related to lock
* Frederic Weisbecker <fweisbec(a)gmail.com> wrote: You add chained indirect calls into all lock ops, that's got to hurt. Well, the idea was not bad at the first glance. It was separating lockdep and lock events codes. But indeed, the indirect calls plus the locking are not good for such a fast... 17 Mar 2010 06:53

[tip:perf/core] perf, x86: Report error code that returned from x86_pmu.hw_config()
Commit-ID: 984763cb90d4b5444baa0c3e43feff7926bf1834 Gitweb: http://git.kernel.org/tip/984763cb90d4b5444baa0c3e43feff7926bf1834 Author: Robert Richter <robert.richter(a)amd.com> AuthorDate: Tue, 16 Mar 2010 17:07:33 +0100 Committer: Ingo Molnar <mingo(a)elte.hu> CommitDate: Wed, 17 Mar 2010 10:43:50 +0100 ... 17 Mar 2010 06:53

[tip:perf/urgent] perf: Fix unexported generic perf_arch_fetch_caller_regs
Commit-ID: a6b84574eed7e4fd8cb8dac2d0926fe2cf34b941 Gitweb: http://git.kernel.org/tip/a6b84574eed7e4fd8cb8dac2d0926fe2cf34b941 Author: Frederic Weisbecker <fweisbec(a)gmail.com> AuthorDate: Tue, 16 Mar 2010 01:05:02 +0100 Committer: Ingo Molnar <mingo(a)elte.hu> CommitDate: Wed, 17 Mar 2010 10:44:42 +0100 ... 17 Mar 2010 06:53

[PATCH 2/4] stop_machine: reimplement using cpuhog
Reimplement stop_machine using cpuhog. As cpuhogs are guaranteed to be available for all online cpus, stop_machine_create/destroy() are no longer necessary and removed. With resource management and synchronization handled by cpuhog, the new implementation is much simpler. Asking the cpuhog to execute the stop_... 17 Mar 2010 05:46

[PATCH 4/4] scheduler: kill paranoia check in synchronize_sched_expedited()
The paranoid check which verifies that the hog callback is actually called on all online cpus is completely superflous. It's guaranteed by cpuhog facility and if it didn't work as advertised other things would go horribly wrong and trying to recover using synchronize_sched() wouldn't be very meaningful. Kill th... 17 Mar 2010 05:46

[PATCHSET sched/core] cpuhog: implement and use cpuhog, take#2
Hello, This is the second take of cpuhog patchset which implements a simplistic cpu monopolization mechanism and reimplements stop_machine() and replaces migration_thread with it. This allows stop_machine() to be simpler and much more efficient on very large machines without using more resources while also mak... 17 Mar 2010 05:46

[PATCH 1/2] microblaze: Fix Makefile to delete build generated files
'make clean' does not to delete the following build generated file: arch/microblaze/boot/linux.bin.ub 'make mrproper' does not to delete the following build generated files: arch/microblaze/boot/simpleImage.* Fix the Makefile to delete these build generated files. See [1] for a discussion on why simpleImag... 17 Mar 2010 04:40

[PATCH 2/2] microblaze: Makefile cleanups
If CONFIG_INITRAMFS_SOURCE is set, "scripts/gen_initramfs_list.sh" checks if the cpio image exists. Remove the duplicate check from the Makefile. Remove the "clean-kernel" variable which is unused in the Makefile and is not used by the Kbuild. Signed-off-by: Arun Bhanu <arun(a)bhanu.net> --- arch/microblaze/b... 17 Mar 2010 04:40