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https://sourceforge.net/p/oprofile/mailman/message/23144818/
Reg:Oprofile :Kernel support not available, missing opcontrol --init as root ?
https://en.wikipedia.org/wiki/OProfile
The most widely supported kernel mode of oprofile uses a system timer (See: Gathering profiling events). However, this mode is unable to measure kernel functions where interrupts are disabled. Newer CPU models support a hardware performance counter mode which uses hardware logic to record events without any active code needed.License: GPL
http://oprofile.sourceforge.net/faq/
Yes, starting with OProfile 0.8 and kernel version 2.6, callgraph support is available on many (but not all) architectures, such as x86, ARM, and ppc/ppc64. What about the "security hole" CVE-2006-0576? This "problem" only occurs if you actively, and mistakenly, configure access to OProfile via sudo.
http://oprofile.sourceforge.net/doc/perf_events.html
OProfile has the ability to profile a single process or every currently running process (i.e., system-wide) via the operf program. operf interfaces with the kernel to collect samples via the Linux Kernel Performance Events Subsystem (hereafter referred to as "perf_events"). OProfile can co-exist with other tools on your system that may also be using the perf_events kernel subsystem.
https://bugzilla.redhat.com/show_bug.cgi?id=87593
Bug 87593 - kernel oprofile modules does not compile for UP kernel. Summary: kernel oprofile modules does not compile for UP kernel ... Linux i686; en-US; rv:1.2.1) Gecko/20030225 Description of problem: The kernel oprofile modules contains references to cpu_possible which is only defines in include/asm-i386/smp.h, and include/asm-x86_64/smp.h ...
https://stackoverflow.com/questions/32511341/oprofile-in-vmware-fusion
Oprofile in Vmware Fusion. Ask Question Asked 4 years, 1 month ago. ... It seems by default when the oprofile kernel module is loaded by invoking. opcontrol --init the timer support is not enabled. The solution is to unload the kernel module. opcontrol --deinit and load …
http://llvm.1065342.n5.nabble.com/oprofile-support-td73563.html
oprofile support?. I've been trying to get oprofile results for jitted code without success. I built an 3.5.0 llvm with oprofile enabled, and tested it with lli on a small test case. I built the...
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=554530
Subject: No support for kernel L2TP Date: Fri, 06 Nov 2009 10:22:59 +1030 Ive done some testing and if xl2tpd is compiled with USE_KERNEL option enabled but the kernel doesnt support it or the module isnt loaded then xl2tpd continues without issue in userspace mode, writing the following in the logfile xl2tpd[]: L2TP kernel support not detected.
https://forum.xda-developers.com/showthread.php?t=2373741
Jul 24, 2013 · depends on HAVE_OPROFILE select RING_BUFFER select RING_BUFFER_ALLOW_SWAP help OProfile is a profiling system capable of profiling the whole system, include the kernel, kernel modules, libraries, and applications. If unsure, say N. config OPROFILE_EVENT_MULTIPLEX bool "OProfile multiplexing support (EXPERIMENTAL)" default n …
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