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https://www.kernel.org/doc/html/latest/vm/slub.html
SLUB always includes full debugging but it is off by default. SLUB can enable debugging only for selected slabs in order to avoid an impact on overall system performance which may make a bug more difficult to find. In order to switch debugging on one can add an option slub_debug to the kernel command line. That will enable full debugging for all slabs.
https://access.redhat.com/solutions/3737361
Red Hat support for Spring Boot; Red Hat build of Node.js; Red Hat build of Thorntail; Red Hat build of Eclipse Vert.x; Red Hat build of OpenJDK; Open Liberty
https://bugzilla.redhat.com/show_bug.cgi?id=1357997
Feature: Enable CONFIG_SLUB_DEBUG and CONFIG_SLABINFO kernel config options to turn on SLUB allocator debugging and slab information tracking so that /proc/slabinfo is available Reason: Support engineers use the values provided by /proc/slabinfo when investigating kernel memory allocation problems.
https://events.static.linuxfound.org/sites/events/files/slides/slaballocators.pdf
Enabling of runtime Debugging Debugging support is compiled in by default. A distro kernel has the ability to go into debug mode where meaningful information about memory corruption can be obtained. Activation via slub_debug kernel parameter or via the slabinfo tool. slub_debug can take some parameters Letter Purpose
http://lkml.iu.edu/hypermail/linux/kernel/1401.0/00493.html
+ SLUB is a slab allocator that minimizes cache line usage + instead of managing queues of cached objects (SLAB approach). + Per cpu caching is realized using slabs of objects instead + of queues of objects. SLUB can use memory efficiently + and has enhanced diagnostics. SLUB is the default choice for + a slab allocator. + +config SLOB
https://www.linux.org/threads/the-linux-kernel-configuring-the-kernel-part-3.8828/
Apr 30, 2019 · To allow the kernel to load modules, enable loadable module support (Enable loadable module support (MODULES)). The Linux kernel will only load modules with version numbers. To allow the kernel to load modules with missing version numbers, enable this feature (Forced module loading (MODULE_FORCE_LOAD)).
https://forum.xda-developers.com/showthread.php?t=2685062
Apr 21, 2014 · Step 2: Take a look at the bolded line in the previous step. If we want to enable CP debugging, we'll need to change those values. Change androidboot.cp_debug_level=0x5500 instead of 0x55FF and obviously change sec_debug.enable_cp_debug=1 instead of 0. Save this copy to /sdcard or wherever you will remember it.
https://community.nxp.com/thread/359922
Jul 24, 2015 · How can we clean image file in /deploy/image/*.bin etc a. Question asked by YaoLin Chang on Jul 24, 2015 ... How can we clean image file and keep kernel source code that we have modified? ... Enable SLUB debugging support (SLUB_DEBUG) [N/y/?] n.Reviews: 5
http://lkml.iu.edu/hypermail/linux/kernel/0804.3/0502.html
- equivalent to specifying the "slub_debug" parameter on boot. - There is no support for more fine grained debug control like - possible with slub_debug=xxx. SLUB debugging may be switched - off in a kernel built with CONFIG_SLUB_DEBUG_ON by specifying - "slub_debug=-".--config SLUB_STATS - default n - bool "Enable SLUB performance statistics"
https://access.redhat.com/solutions/2149041
enable slub_debug=F on the kernel command line. The 'F' options set debugging to "Sanity checks only" (minimal debugging). Setting Sanity check will detect a corrupt free-pointer and prevent a panic. At runtime, it will then zero out that free-pointer and find another cache page to use for object allocation.
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